URL: https://stackoverflow.com/
Submission: On May 23 via api from US

Summary

This website contacted 9 IPs in 5 countries across 9 domains to perform 36 HTTP transactions. The main IP is 151.101.1.69, located in United States and belongs to FASTLY - Fastly, US. The main domain is stackoverflow.com.
TLS certificate: Issued by DigiCert SHA2 High Assurance Server CA on October 5th 2018. Valid for: 10 months.
This is the only time stackoverflow.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
12 151.101.1.69 54113 (FASTLY)
1 2a00:1450:400... 15169 (GOOGLE)
14 104.16.2.35 13335 (CLOUDFLAR...)
2 2a00:1450:400... 15169 (GOOGLE)
1 91.228.74.177 27281 (QUANTCAST)
1 3 23.43.115.95 20940 (AKAMAI-ASN1)
2 2a04:fa87:fff... 2635 (AUTOMATTIC)
1 2600:9000:200... 16509 (AMAZON-02)
1 91.228.74.254 27281 (QUANTCAST)
36 9
Domain Requested by
14 i.stack.imgur.com stackoverflow.com
cdn.sstatic.net
9 cdn.sstatic.net stackoverflow.com
ajax.googleapis.com
cdn.sstatic.net
3 sb.scorecardresearch.com 1 redirects stackoverflow.com
2 www.gravatar.com stackoverflow.com
2 clc.stackoverflow.com cdn.sstatic.net
stackoverflow.com
2 www.google-analytics.com stackoverflow.com
www.google-analytics.com
1 pixel.quantserve.com stackoverflow.com
1 rules.quantcount.com secure.quantserve.com
1 secure.quantserve.com stackoverflow.com
1 ajax.googleapis.com stackoverflow.com
1 stackoverflow.com
36 11

This site contains links to these domains. Also see Links.

Domain
stackexchange.com
chat.stackoverflow.com
meta.stackoverflow.com
stackoverflow.blog
www.stackoverflowbusiness.com
english.stackexchange.com
apple.stackexchange.com
writing.stackexchange.com
mechanics.stackexchange.com
physics.stackexchange.com
money.stackexchange.com
codegolf.stackexchange.com
retrocomputing.stackexchange.com
matheducators.stackexchange.com
politics.stackexchange.com
movies.stackexchange.com
ell.stackexchange.com
music.stackexchange.com
philosophy.stackexchange.com
history.stackexchange.com
outdoors.stackexchange.com
puzzling.stackexchange.com
interpersonal.stackexchange.com
serverfault.com
superuser.com
webapps.stackexchange.com
askubuntu.com
webmasters.stackexchange.com
gamedev.stackexchange.com
tex.stackexchange.com
softwareengineering.stackexchange.com
unix.stackexchange.com
wordpress.stackexchange.com
gis.stackexchange.com
electronics.stackexchange.com
android.stackexchange.com
security.stackexchange.com
dba.stackexchange.com
drupal.stackexchange.com
sharepoint.stackexchange.com
ux.stackexchange.com
mathematica.stackexchange.com
salesforce.stackexchange.com
expressionengine.stackexchange.com
pt.stackoverflow.com
blender.stackexchange.com
networkengineering.stackexchange.com
crypto.stackexchange.com
codereview.stackexchange.com
magento.stackexchange.com
softwarerecs.stackexchange.com
dsp.stackexchange.com
emacs.stackexchange.com
raspberrypi.stackexchange.com
ru.stackoverflow.com
es.stackoverflow.com
ethereum.stackexchange.com
datascience.stackexchange.com
arduino.stackexchange.com
bitcoin.stackexchange.com
photo.stackexchange.com
scifi.stackexchange.com
graphicdesign.stackexchange.com
worldbuilding.stackexchange.com
cooking.stackexchange.com
diy.stackexchange.com
academia.stackexchange.com
law.stackexchange.com
skeptics.stackexchange.com
judaism.stackexchange.com
travel.stackexchange.com
christianity.stackexchange.com
japanese.stackexchange.com
gaming.stackexchange.com
bicycles.stackexchange.com
rpg.stackexchange.com
anime.stackexchange.com
mathoverflow.net
math.stackexchange.com
stats.stackexchange.com
cstheory.stackexchange.com
chemistry.stackexchange.com
biology.stackexchange.com
cs.stackexchange.com
meta.stackexchange.com
stackapps.com
api.stackexchange.com
data.stackexchange.com
www.facebook.com
twitter.com
linkedin.com
creativecommons.org
Subject Issuer Validity Valid
*.stackexchange.com
DigiCert SHA2 High Assurance Server CA
2018-10-05 -
2019-08-14
10 months crt.sh
*.googleapis.com
Google Internet Authority G3
2019-04-30 -
2019-07-23
3 months crt.sh
i.stack.imgur.com
DigiCert SHA2 Secure Server CA
2018-10-16 -
2020-11-25
2 years crt.sh
*.google-analytics.com
Google Internet Authority G3
2019-05-07 -
2019-07-30
3 months crt.sh
*.quantserve.com
DigiCert SHA2 High Assurance Server CA
2018-10-16 -
2019-10-21
a year crt.sh
*.scorecardresearch.com
COMODO RSA Organization Validation Secure Server CA
2018-11-28 -
2019-12-26
a year crt.sh
*.gravatar.com
COMODO RSA Domain Validation Secure Server CA
2018-09-06 -
2020-09-05
2 years crt.sh

This page contains 1 frames:

Primary Page: https://stackoverflow.com/
Frame ID: 5689B1D3BD3DAB6E4B43E4B5D56B592E
Requests: 36 HTTP requests in this frame

Screenshot


Detected technologies

Overall confidence: 100%
Detected patterns
  • headers via /.*Varnish/i

Overall confidence: 100%
Detected patterns
  • script /google-analytics\.com\/(?:ga|urchin|(analytics))\.js/i
  • env /^gaGlobal$/i

Overall confidence: 100%
Detected patterns
  • env /^googletag$/i

Overall confidence: 100%
Detected patterns
  • env /^quantserve$/i

Overall confidence: 100%
Detected patterns
  • html /<iframe[^>]* (?:id="comscore"|scr=[^>]+comscore)|\.scorecardresearch\.com\/beacon\.js|COMSCORE\.beacon/i
  • script /\.scorecardresearch\.com\/beacon\.js|COMSCORE\.beacon/i
  • env /^_?COMSCORE$/i

Overall confidence: 100%
Detected patterns
  • script /\/([\d.]+)\/jquery(?:\.min)?\.js/i
  • script /jquery.*\.js/i
  • env /^jQuery$/i

Page Statistics

36
Requests

100 %
HTTPS

44 %
IPv6

9
Domains

11
Subdomains

9
IPs

5
Countries

760 kB
Transfer

1794 kB
Size

0
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 34
  • https://sb.scorecardresearch.com/b?c1=2&c2=17440561&ns__t=1558605706496&ns_c=UTF-8&cv=3.1&c8=Stack%20Overflow%20-%20Where%20Developers%20Learn%2C%20Share%2C%20%26%20Build%20Careers&c7=https%3A%2F%2Fstackoverflow.com%2F&c9= HTTP 302
  • https://sb.scorecardresearch.com/b2?c1=2&c2=17440561&ns__t=1558605706496&ns_c=UTF-8&cv=3.1&c8=Stack%20Overflow%20-%20Where%20Developers%20Learn%2C%20Share%2C%20%26%20Build%20Careers&c7=https%3A%2F%2Fstackoverflow.com%2F&c9=

36 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
stackoverflow.com/
254 KB
52 KB
Document
General
Full URL
https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
b3130411cd0f109bc587ef80fd0ee1c2cc147ad9963bbdbf7cef409c7053224e
Security Headers
Name Value
Content-Security-Policy upgrade-insecure-requests
Strict-Transport-Security max-age=15552000
X-Frame-Options SAMEORIGIN

Request headers

:method
GET
:authority
stackoverflow.com
:scheme
https
:path
/
pragma
no-cache
cache-control
no-cache
upgrade-insecure-requests
1
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3
accept-encoding
gzip, deflate, br
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

status
200
cache-control
private
content-type
text/html; charset=utf-8
content-encoding
gzip
x-frame-options
SAMEORIGIN
x-request-guid
2cd17e9c-5122-45c9-bdc4-669e72e92f04
strict-transport-security
max-age=15552000
content-security-policy
upgrade-insecure-requests
accept-ranges
bytes
date
Thu, 23 May 2019 10:01:36 GMT
via
1.1 varnish
x-served-by
cache-hhn1541-HHN
x-cache
MISS
x-cache-hits
0
x-timer
S1558605697.789578,VS0,VE98
vary
Accept-Encoding,Fastly-SSL
x-dns-prefetch-control
off
set-cookie
prov=7c52a4e4-8f16-06cc-7272-25443203903b; domain=.stackoverflow.com; expires=Fri, 01-Jan-2055 00:00:00 GMT; path=/; HttpOnly
content-length
52222
jquery.min.js
ajax.googleapis.com/ajax/libs/jquery/1.12.4/
95 KB
33 KB
Script
General
Full URL
https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:808::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
sffe /
Resource Hash
668b046d12db350ccba6728890476b3efee53b2f42dbb84743e5e9f1ae0cc404
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Sat, 09 Mar 2019 02:43:15 GMT
content-encoding
gzip
x-content-type-options
nosniff
age
6506302
status
200
alt-svc
quic=":443"; ma=2592000; v="46,44,43,39"
content-length
33951
x-xss-protection
1; mode=block
last-modified
Tue, 20 Dec 2016 18:17:03 GMT
server
sffe
vary
Accept-Encoding
content-type
text/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
public, max-age=31536000, stale-while-revalidate=2592000
accept-ranges
bytes
timing-allow-origin
*
expires
Sun, 08 Mar 2020 02:43:15 GMT
stub.en.js
cdn.sstatic.net/Js/
45 KB
15 KB
Script
General
Full URL
https://cdn.sstatic.net/Js/stub.en.js?v=b4ef47c6c201
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
2f3c022aeb7221fc9024348ebbf60f8e2a347f1640c66df22f114802355e545c

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
122761
x-cache
HIT
status
200
content-length
15581
via
1.1 varnish
x-served-by
cache-hhn1541-HHN
last-modified
Tue, 21 May 2019 20:34:44 GMT
x-timer
S1558605697.116785,VS0,VE0
etag
"08a949f1410d51:0"
vary
Accept-Encoding,Accept-Encoding
content-type
application/javascript
access-control-allow-origin
stackoverflow.com
cache-control
max-age=604800
accept-ranges
bytes
x-cache-hits
2881
stacks.css
cdn.sstatic.net/Shared/
207 KB
23 KB
Stylesheet
General
Full URL
https://cdn.sstatic.net/Shared/stacks.css?v=6a897dbbc53b
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
a9f409107617079a990fad6ca2534fafde6abe31da27ad01ab73b05844ab87c5

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
489479
x-cache
HIT
status
200
content-length
23697
via
1.1 varnish
x-served-by
cache-hhn1541-HHN
last-modified
Fri, 17 May 2019 15:07:43 GMT
x-timer
S1558605697.116755,VS0,VE0
etag
"8089e646c2cd51:0"
vary
Accept-Encoding,Accept-Encoding
content-type
text/css
access-control-allow-origin
*
cache-control
max-age=604800
accept-ranges
bytes
x-cache-hits
43837
primary.css
cdn.sstatic.net/Sites/stackoverflow/
391 KB
65 KB
Stylesheet
General
Full URL
https://cdn.sstatic.net/Sites/stackoverflow/primary.css?v=3029a1bfa102
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
20e3a026945f8bf54d2280edd138293f0a1fac73e43287d07e77bf6bf8751263

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
1717
x-cache
HIT
status
200
content-length
66802
x-served-by
cache-hhn1541-HHN
last-modified
Thu, 23 May 2019 09:31:50 GMT
x-timer
S1558605697.116778,VS0,VE0
etag
"04741594a11d51:0"
vary
Accept-Encoding,Accept-Encoding
content-type
text/css
via
1.1 varnish
cache-control
max-age=604800
accept-ranges
bytes
x-cache-hits
2279
bk9VA.png
i.stack.imgur.com/
521 B
960 B
Image
General
Full URL
https://i.stack.imgur.com/bk9VA.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
a1f2177d5dc7c534d7ef9e78cf94bfe8bcb0c2046fa7a79553d2ca7671a50bea

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Tue, 27 Nov 2018 23:40:47 GMT
server
cloudflare
etag
"81b77707f26b56ed8b16aba16f891101"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
ImF9IjeRtJ_yDeCzSTAtW52hTUTAqppQ
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630874d1572f9-AMS
content-type
image/png
content-length
521
expires
Sun, 20 May 2029 10:01:37 GMT
iXVPe.png
i.stack.imgur.com/
876 B
1018 B
Image
General
Full URL
https://i.stack.imgur.com/iXVPe.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
286de3b05888582d229f8a2f71efc9b152e6f78db85d636e10f28a70bc2a52a7

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Tue, 09 Apr 2019 21:13:55 GMT
server
cloudflare
etag
"1874764bd2739954b0c93d2668579861"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
jg.feJKgbQM4s1Mepi6xxwWlOXBTQFHZ
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630874d1672f9-AMS
content-type
image/png
content-length
876
expires
Sun, 20 May 2029 10:01:37 GMT
bpLjl.png
i.stack.imgur.com/
672 B
814 B
Image
General
Full URL
https://i.stack.imgur.com/bpLjl.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
b1815b21fc2629681c88283fbfef095154183ae4b830f26e28f42fdabc555733

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Fri, 01 Mar 2019 22:58:59 GMT
server
cloudflare
etag
"8a61d0fef37c79ce4f56bd45a4ed76ef"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
NS13u2ZC5UQnNHet6Fn9BUkI7L7doIpe
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630877d2b72f9-AMS
content-type
image/png
content-length
672
expires
Sun, 20 May 2029 10:01:37 GMT
4D9pf.png
i.stack.imgur.com/
604 B
745 B
Image
General
Full URL
https://i.stack.imgur.com/4D9pf.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
4bac79e74079a2736e8f01ca51c7944fc1ecf60a40a15da44ee80093c693daa2

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Fri, 15 Mar 2019 21:19:04 GMT
server
cloudflare
etag
"7075a5d93d8f2b86a5c9327fa9273812"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
03zQrl7csW03vg0tukd8b7Zcvh9ufNIG
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630877d2c72f9-AMS
content-type
image/png
content-length
604
expires
Sun, 20 May 2029 10:01:37 GMT
gfrSH.png
i.stack.imgur.com/
654 B
797 B
Image
General
Full URL
https://i.stack.imgur.com/gfrSH.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
f35062cbd31e575a284f0575c734f46eb9e66b45af1a4ccbc2387ce4a9ab763a

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Tue, 16 Jan 2018 18:16:10 GMT
server
cloudflare
etag
"a9972d7887f955b34bc552ad291086a8"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
w0RWA5zTWto7GYvnwxe0URYWySxjR1XV
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630877d2d72f9-AMS
content-type
image/png
content-length
654
expires
Sun, 20 May 2029 10:01:37 GMT
9J8MK.png
i.stack.imgur.com/
397 B
539 B
Image
General
Full URL
https://i.stack.imgur.com/9J8MK.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
a23bab19d6bf56c0b794926a8961376c8c2cc4dd83e5d989cfbe2e565ad42d99

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Mon, 09 Jul 2018 16:00:12 GMT
server
cloudflare
etag
"38255e79bf9fa820875b40c1f56c8214"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
N1D_Z2CYX0cVXoXtKHts8h7AqmJxejuu
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
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content-type
image/png
content-length
397
expires
Sun, 20 May 2029 10:01:37 GMT
EQnZM.png
i.stack.imgur.com/
1 KB
1 KB
Image
General
Full URL
https://i.stack.imgur.com/EQnZM.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
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server
cloudflare
etag
"ecef4a5748326dafef01faae4d8d3264"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
8vqFGYo1.dKAKvV9__JM8Qz_u6V7w3RT
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630877d2f72f9-AMS
content-type
image/png
content-length
1268
expires
Sun, 20 May 2029 10:01:37 GMT
aIElQ.png
i.stack.imgur.com/
624 B
766 B
Image
General
Full URL
https://i.stack.imgur.com/aIElQ.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
af22dae0899b0cfd578853716ebe99384b2954b4ce393411736e3aaa19dd1f1f

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Mon, 04 Mar 2019 23:26:42 GMT
server
cloudflare
etag
"8b5cdfe3a8fb72fed95f9ef24f75c4a5"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
.GEf3ZGmliGYLelV2tET_5l3QWcGL6UE
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630877d3072f9-AMS
content-type
image/png
content-length
624
expires
Sun, 20 May 2029 10:01:37 GMT
oDCUZ.png
i.stack.imgur.com/
758 B
900 B
Image
General
Full URL
https://i.stack.imgur.com/oDCUZ.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
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Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Mon, 06 May 2019 20:30:45 GMT
server
cloudflare
etag
"6dd4b576457144c68695d4c5cbd7d331"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
xX4iHIK1GV3xjqdj1bvttDp267VjwuJd
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630877d3172f9-AMS
content-type
image/png
content-length
758
expires
Sun, 20 May 2029 10:01:37 GMT
wQ1BK.png
i.stack.imgur.com/
532 B
673 B
Image
General
Full URL
https://i.stack.imgur.com/wQ1BK.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
4affe75fb9bb2ed6a61f99951f100cfcd864fd2cbb93ad38b45a25bee6cd356f

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Tue, 09 Jan 2018 23:13:18 GMT
server
cloudflare
etag
"d2596cec1f1858d04b00f0212571e407"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
mQ70JsbhKYlzXNVjv2aj.LzpNLuD8wAC
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630877d3272f9-AMS
content-type
image/png
content-length
532
expires
Sun, 20 May 2029 10:01:37 GMT
yEq8O.png
i.stack.imgur.com/
794 B
935 B
Image
General
Full URL
https://i.stack.imgur.com/yEq8O.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
1b1af7eecff41c42b0b9bd6bc2881c0f2bac5e780e0647aa295728914c88c311

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Mon, 04 Mar 2019 21:59:53 GMT
server
cloudflare
etag
"c06d2b3ceb980fda49798c9434f34b9a"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
R5ox3RHwsdoyMmw2To2mMbCOsZK_i4lP
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db630877d3372f9-AMS
content-type
image/png
content-length
794
expires
Sun, 20 May 2029 10:01:37 GMT
sprites.svg
cdn.sstatic.net/Img/unified/
8 KB
3 KB
Image
General
Full URL
https://cdn.sstatic.net/Img/unified/sprites.svg?v=e5e58ae7df45
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
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Request headers

Referer
https://cdn.sstatic.net/Sites/stackoverflow/primary.css?v=3029a1bfa102
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
487870
x-cache
HIT
status
200
content-length
2882
x-served-by
cache-hhn1541-HHN
last-modified
Fri, 17 May 2019 15:06:15 GMT
x-timer
S1558605697.210479,VS0,VE0
etag
"80cd7212c2cd51:0"
vary
Accept-Encoding,Accept-Encoding
content-type
image/svg+xml
via
1.1 varnish
cache-control
max-age=604800
accept-ranges
bytes
x-cache-hits
36907
pattern.svg
cdn.sstatic.net/img/hero/
31 KB
5 KB
Image
General
Full URL
https://cdn.sstatic.net/img/hero/pattern.svg?v=13ca42e6c21d
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
b3aad02b169692614aee9a8a848b31520ac821b6bc577bba4dfe278473e2f185

Request headers

Referer
https://cdn.sstatic.net/Sites/stackoverflow/primary.css?v=3029a1bfa102
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
33548
x-cache
HIT
status
200
content-length
5376
x-served-by
cache-hhn1541-HHN
last-modified
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x-timer
S1558605697.211305,VS0,VE0
etag
"8077e54bcc10d51:0"
vary
Accept-Encoding,Accept-Encoding
content-type
image/svg+xml
via
1.1 varnish
cache-control
max-age=604800
accept-ranges
bytes
x-cache-hits
557
clc.min.js
cdn.sstatic.net/clc/
8 KB
4 KB
Script
General
Full URL
https://cdn.sstatic.net/clc/clc.min.js?v=d5e853c48d84
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
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Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
584994
x-cache
HIT
status
200
content-length
3625
x-served-by
cache-hhn1541-HHN
last-modified
Thu, 16 May 2019 13:29:56 GMT
x-timer
S1558605697.348373,VS0,VE0
etag
"0a27b73ebbd51:0"
vary
Accept-Encoding,Accept-Encoding
content-type
application/javascript
via
1.1 varnish
cache-control
max-age=604800
accept-ranges
bytes
x-cache-hits
22135
analytics.js
www.google-analytics.com/
43 KB
17 KB
Script
General
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:817::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
7dff09578729615fcd15c840a32c9f82a33fe2331a851e4ac40be03cb111b3f0
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Thu, 02 May 2019 01:33:03 GMT
server
Golfe2
age
881
date
Thu, 23 May 2019 09:46:56 GMT
vary
Accept-Encoding
content-type
text/javascript
status
200
cache-control
public, max-age=7200
timing-allow-origin
*
alt-svc
quic=":443"; ma=2592000; v="46,44,43,39"
content-length
17779
expires
Thu, 23 May 2019 11:46:56 GMT
quant.js
secure.quantserve.com/
12 KB
6 KB
Script
General
Full URL
https://secure.quantserve.com/quant.js
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
91.228.74.177 , United Kingdom, ASN27281 (QUANTCAST - Quantcast Corporation, US),
Reverse DNS
Software
QS /
Resource Hash
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Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

Date
Thu, 23 May 2019 10:01:40 GMT
Content-Encoding
gzip
Last-Modified
Thu, 23-May-2019 10:01:40 GMT
Server
QS
ETag
M0-e2b9884a
Vary
Accept-Encoding
Content-Type
application/x-javascript
Cache-Control
private, no-transform, max-age=604800
Connection
keep-alive
Content-Length
5456
Expires
Thu, 30 May 2019 10:01:40 GMT
beacon.js
sb.scorecardresearch.com/
1 KB
1 KB
Script
General
Full URL
https://sb.scorecardresearch.com/beacon.js
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
23.43.115.95 , Netherlands, ASN20940 (AKAMAI-ASN1, US),
Reverse DNS
a23-43-115-95.deploy.static.akamaitechnologies.com
Software
/
Resource Hash
d0fd74148f4cbe78bd0e6328dc5ce5955f0a0ecdb1eb2919da4a7e596ac65912

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

Date
Thu, 23 May 2019 10:01:46 GMT
Content-Encoding
gzip
Vary
Accept-Encoding
Content-Type
application/x-javascript
Cache-Control
private, no-transform, max-age=86400
Connection
keep-alive
Content-Length
901
Expires
Fri, 24 May 2019 10:01:46 GMT
favicons-sprite16.png
cdn.sstatic.net/img/
70 KB
71 KB
Image
General
Full URL
https://cdn.sstatic.net/img/favicons-sprite16.png?v=3f547b1bcd6d
Requested by
Host: ajax.googleapis.com
URL: https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
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Request headers

Referer
https://cdn.sstatic.net/Sites/stackoverflow/primary.css?v=3029a1bfa102
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
via
1.1 varnish
last-modified
Tue, 21 May 2019 00:58:10 GMT
age
136684
etag
"9742db4270fd51:0"
vary
Accept-Encoding
x-cache
HIT
content-type
image/png
status
200
cache-control
max-age=604800
x-cache-hits
44412
accept-ranges
bytes
x-timer
S1558605697.391306,VS0,VE0
content-length
72030
x-served-by
cache-hhn1541-HHN
full-anon.en.js
cdn.sstatic.net/Js/
188 KB
57 KB
Script
General
Full URL
https://cdn.sstatic.net/Js/full-anon.en.js?v=472d6466b522
Requested by
Host: cdn.sstatic.net
URL: https://cdn.sstatic.net/Js/stub.en.js?v=b4ef47c6c201
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
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Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
1717
x-cache
HIT
status
200
content-length
57872
via
1.1 varnish
x-served-by
cache-hhn1541-HHN
last-modified
Thu, 23 May 2019 09:30:57 GMT
x-timer
S1558605697.408940,VS0,VE0
etag
"801eaa394a11d51:0"
vary
Accept-Encoding,Accept-Encoding
content-type
application/javascript
access-control-allow-origin
stackoverflow.com
cache-control
max-age=604800
accept-ranges
bytes
x-cache-hits
2327
clc.min.css
cdn.sstatic.net/clc/styles/
56 KB
23 KB
Stylesheet
General
Full URL
https://cdn.sstatic.net/clc/styles/clc.min.css?v=002bd589ccb2
Requested by
Host: cdn.sstatic.net
URL: https://cdn.sstatic.net/clc/clc.min.js?v=d5e853c48d84
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
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Resource Hash
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Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
584994
x-cache
HIT
status
200
content-length
23093
x-served-by
cache-hhn1541-HHN
last-modified
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x-timer
S1558605697.437591,VS0,VE0
etag
"0a27b73ebbd51:0"
vary
Accept-Encoding,Accept-Encoding
content-type
text/css
via
1.1 varnish
cache-control
max-age=604800
accept-ranges
bytes
x-cache-hits
27831
markup.js
clc.stackoverflow.com/
5 KB
2 KB
Script
General
Full URL
https://clc.stackoverflow.com/markup.js?omni=ApcVv6Rl39YIAAAAAAAAAAACAAAAAQAAAAAAAAAAAOFqlzofKD71aTk&zc=24%3B4&pf=0&lw=0
Requested by
Host: cdn.sstatic.net
URL: https://cdn.sstatic.net/clc/clc.min.js?v=d5e853c48d84
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
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Resource Hash
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Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
0, 0
x-dns-prefetch-control
off
x-cache
MISS
status
200
x-request-guid
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content-length
1349
x-served-by
cache-hhn1541-HHN
x-timer
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vary
Fastly-SSL
content-type
application/javascript; charset=utf-8
via
1.1 varnish
cache-control
private
accept-ranges
bytes, bytes
x-cache-hits
0
collect
www.google-analytics.com/r/
35 B
151 B
Other
General
Full URL
https://www.google-analytics.com/r/collect
Requested by
Host: www.google-analytics.com
URL: https://www.google-analytics.com/analytics.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:817::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://stackoverflow.com/
Origin
https://stackoverflow.com
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36
Content-Type
text/plain;charset=UTF-8

Response headers

pragma
no-cache
date
Thu, 23 May 2019 10:01:37 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
access-control-allow-origin
https://stackoverflow.com
content-type
image/gif
status
200
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
alt-svc
quic=":443"; ma=2592000; v="46,44,43,39"
content-length
35
expires
Fri, 01 Jan 1990 00:00:00 GMT
l4JVLm.jpg
i.stack.imgur.com/
17 KB
17 KB
Image
General
Full URL
https://i.stack.imgur.com/l4JVLm.jpg
Requested by
Host: cdn.sstatic.net
URL: https://cdn.sstatic.net/clc/clc.min.js?v=d5e853c48d84
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
917ac9ff2923a5d28832c254f2f3184f32c9ad5211c149a2c1f5c97b3347b933

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
x-amz-version-id
nVGvCmCM2yvjZWU2CCkU4gjPXh0UKvTP
status
200
content-length
17010
last-modified
Wed, 20 Jun 2018 12:41:20 GMT
server
cloudflare
etag
"0aa1a0fb326ab02f018c54692626c317"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
content-type
image/jpeg
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db63089ce8a72f9-AMS
x-amz-storage-class
REDUCED_REDUNDANCY
expires
Sun, 20 May 2029 10:01:37 GMT
ap55u.jpg
i.stack.imgur.com/
9 KB
9 KB
Image
General
Full URL
https://i.stack.imgur.com/ap55u.jpg
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
e356f7f213eb49e7ebea00a3071fe389d0ac27f07ef007157081ea09b9493c08

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Mon, 24 Jul 2017 13:56:08 GMT
server
cloudflare
etag
"4717bd646c03f06e5809d1947b12e70d"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
TK7Y4.Vw4pxhFLsEFNodcKtbjNLauQw1
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db63089ce8c72f9-AMS
content-type
image/jpeg
content-length
8927
expires
Sun, 20 May 2029 10:01:37 GMT
xj1mX.png
i.stack.imgur.com/
338 KB
338 KB
Image
General
Full URL
https://i.stack.imgur.com/xj1mX.png
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.16.2.35 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
9c2e010950f7cea81e2449177a84ed81af01da1bc39d803afbbed111243abb5f

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
cf-cache-status
HIT
last-modified
Tue, 07 Nov 2017 09:37:14 GMT
server
cloudflare
etag
"e5dfff79a997968d2a8b6ba6346676d4"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
VBKGNMBC0QTeiRlC7osJ38rtSBAJHP8V
status
200
cache-control
public, max-age=315360000
accept-ranges
bytes
cf-ray
4db63089ce8d72f9-AMS
content-type
image/png
content-length
345723
expires
Sun, 20 May 2029 10:01:37 GMT
3bf3a7398f2545d8eeb0b50e2770878b
www.gravatar.com/avatar/
6 KB
6 KB
Image
General
Full URL
https://www.gravatar.com/avatar/3bf3a7398f2545d8eeb0b50e2770878b?s=136&r=PG&d=identicon
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffe::c000:4902 , Ireland, ASN2635 (AUTOMATTIC - Automattic, Inc, US),
Reverse DNS
Software
nginx /
Resource Hash
852a82d4b51993172b1495fbd5c9c4253d411e9982bd003f32a19fd7b8b37979

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nc
HIT vie 2
date
Thu, 23 May 2019 10:01:37 GMT
last-modified
Thu, 08 Mar 2012 12:50:39 GMT
server
nginx
access-control-allow-origin
*
source-age
8545787
content-type
image/png
status
200
cache-control
max-age=300
content-disposition
inline; filename="3bf3a7398f2545d8eeb0b50e2770878b.png"
accept-ranges
bytes
link
<https://www.gravatar.com/avatar/3bf3a7398f2545d8eeb0b50e2770878b?s=136&r=PG&d=identicon>; rel="canonical"
content-length
6272
expires
Thu, 23 May 2019 10:06:37 GMT
a044af78a32faa36af446aa0e6d15fac
www.gravatar.com/avatar/
2 KB
2 KB
Image
General
Full URL
https://www.gravatar.com/avatar/a044af78a32faa36af446aa0e6d15fac?s=128&d=identicon&r=PG&f=1
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a04:fa87:fffe::c000:4902 , Ireland, ASN2635 (AUTOMATTIC - Automattic, Inc, US),
Reverse DNS
Software
nginx /
Resource Hash
eafa4dc289a5c18f68e157dc716e9125f8f833b3d71929854c33cf95aa1af213

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

x-nc
HIT vie 1
date
Thu, 23 May 2019 10:01:37 GMT
last-modified
Wed, 11 Jan 1984 08:00:00 GMT
server
nginx
access-control-allow-origin
*
source-age
2139997
content-type
image/png
status
200
cache-control
max-age=300
accept-ranges
bytes
link
<https://www.gravatar.com/avatar/a044af78a32faa36af446aa0e6d15fac?s=128&d=identicon&r=PG&f=1>; rel="canonical"
content-length
1998
expires
Thu, 23 May 2019 10:06:37 GMT
impression.gif
clc.stackoverflow.com/
43 B
179 B
Image
General
Full URL
https://clc.stackoverflow.com/impression.gif?an=ATQAy_8KW7ImpWXf1kgB_z5FRAIBBBsD5twHlb4M960VABMAAMBD4Lw50qzGPgBCb-__L1p3eHmW&md=123
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.1.69 , United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
/
Resource Hash
98b3d9d20e032f90aca49e9b116225d539ff6fbdb7e42c3c363f63896ac03d2a

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 10:01:37 GMT
content-encoding
gzip
age
0, 0
x-dns-prefetch-control
off
x-cache
MISS
status
200
x-request-guid
65466244-7bd5-425d-9902-c93212025e5e
content-length
57
x-served-by
cache-hhn1541-HHN
x-timer
S1558605698.566980,VS0,VE80
vary
Fastly-SSL
content-type
image/gif
via
1.1 varnish
cache-control
private
accept-ranges
bytes, bytes
x-cache-hits
0
rules-p-c1rF4kxgLUzNc.js
rules.quantcount.com/
3 B
341 B
Script
General
Full URL
https://rules.quantcount.com/rules-p-c1rF4kxgLUzNc.js
Requested by
Host: secure.quantserve.com
URL: https://secure.quantserve.com/quant.js
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2600:9000:200d:5600:6:44e3:f8c0:93a1 , United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
ca3d163bab055381827226140568f3bef7eaac187cebd76878e0b63e9e442356

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

date
Thu, 23 May 2019 01:36:48 GMT
via
1.1 029f15a661be82d29f31e88713b71d65.cloudfront.net (CloudFront)
last-modified
Sat, 04 Mar 2017 20:52:55 GMT
server
AmazonS3
age
31722
etag
"8a80554c91d9fca8acb82f023de02f11"
x-cache
Hit from cloudfront
content-type
application/x-javascript
status
200
cache-control
max-age=86400
accept-ranges
bytes
content-length
3
x-amz-cf-id
Lw_bDA8IpPMdYJxqirUmb3ASbWIIQn5qsUzmVJyVtT0JU6hkje67NQ==
pixel;r=640793234;rf=0;a=p-c1rF4kxgLUzNc;url=https%3A%2F%2Fstackoverflow.com%2F;fpan=1;fpa=P0-884152610-1558605700615;ns=0;ce=1;qjs=1;qv=4c19192-20180628134937;cm=;ref=;je=0;sr=1600x1200x24;enc=n;d...
pixel.quantserve.com/
35 B
479 B
Image
General
Full URL
https://pixel.quantserve.com/pixel;r=640793234;rf=0;a=p-c1rF4kxgLUzNc;url=https%3A%2F%2Fstackoverflow.com%2F;fpan=1;fpa=P0-884152610-1558605700615;ns=0;ce=1;qjs=1;qv=4c19192-20180628134937;cm=;ref=;je=0;sr=1600x1200x24;enc=n;dst=0;et=1558605700615;tzo=0;ogl=type.website%2Curl.https%3A%2F%2Fstackoverflow%252Ecom%2F%2Csite_name.Stack%20Overflow%2Cimage.https%3A%2F%2Fcdn%252Esstatic%252Enet%2FSites%2Fstackoverflow%2Fimg%2Fapple-touch-icon%402%252Epng%3Fv%3D73d79a8%2Ctitle.Stack%20Overflow%20-%20Where%20Developers%20Learn%252C%20Share%252C%20%26%20Build%20Careers%2Cdescription.Stack%20Overflow%20%7C%20The%20World%E2%80%99s%20Largest%20Online%20Community%20for%20Developers
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
91.228.74.254 , United Kingdom, ASN27281 (QUANTCAST - Quantcast Corporation, US),
Reverse DNS
Software
QS /
Resource Hash
a0d3a0aff7dc3bf32d2176fc3dcda6e7aba2867c4f4d1f7af6355d2cfc6c44f8

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

Pragma
no-cache
Date
Thu, 23 May 2019 10:01:41 GMT
Server
QS
P3P
CP="NOI DSP COR NID CURa ADMa DEVa PSAo PSDo OUR SAMa IND COM NAV"
Cache-Control
private, no-cache, no-store, proxy-revalidate
Connection
keep-alive
Content-Type
image/gif
Content-Length
35
Expires
Fri, 04 Aug 1978 12:00:00 GMT
b2
sb.scorecardresearch.com/
Redirect Chain
  • https://sb.scorecardresearch.com/b?c1=2&c2=17440561&ns__t=1558605706496&ns_c=UTF-8&cv=3.1&c8=Stack%20Overflow%20-%20Where%20Developers%20Learn%2C%20Share%2C%20%26%20Build%20Careers&c7=https%3A%2F%2...
  • https://sb.scorecardresearch.com/b2?c1=2&c2=17440561&ns__t=1558605706496&ns_c=UTF-8&cv=3.1&c8=Stack%20Overflow%20-%20Where%20Developers%20Learn%2C%20Share%2C%20%26%20Build%20Careers&c7=https%3A%2F%...
0
248 B
Image
General
Full URL
https://sb.scorecardresearch.com/b2?c1=2&c2=17440561&ns__t=1558605706496&ns_c=UTF-8&cv=3.1&c8=Stack%20Overflow%20-%20Where%20Developers%20Learn%2C%20Share%2C%20%26%20Build%20Careers&c7=https%3A%2F%2Fstackoverflow.com%2F&c9=
Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
23.43.115.95 , Netherlands, ASN20940 (AKAMAI-ASN1, US),
Reverse DNS
a23-43-115-95.deploy.static.akamaitechnologies.com
Software
/
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.87 Safari/537.36

Response headers

Pragma
no-cache
Date
Thu, 23 May 2019 10:01:46 GMT
Cache-Control
private, no-cache, no-cache=Set-Cookie, no-store, proxy-revalidate
Connection
keep-alive
Content-Length
0
Expires
Mon, 01 Jan 1990 00:00:00 GMT

Redirect headers

Location
https://sb.scorecardresearch.com/b2?c1=2&c2=17440561&ns__t=1558605706496&ns_c=UTF-8&cv=3.1&c8=Stack%20Overflow%20-%20Where%20Developers%20Learn%2C%20Share%2C%20%26%20Build%20Careers&c7=https%3A%2F%2Fstackoverflow.com%2F&c9=
Pragma
no-cache
Date
Thu, 23 May 2019 10:01:46 GMT
Cache-Control
private, no-cache, no-cache=Set-Cookie, no-store, proxy-revalidate
Connection
keep-alive
Content-Length
0
Expires
Mon, 01 Jan 1990 00:00:00 GMT

Verdicts & Comments Add Verdict or Comment

37 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

object| onselectstart object| onselectionchange function| queueMicrotask function| $ function| jQuery function| IsMalwareProxy object| StackExchange object| jQuery112408754978324702991 object| clc object| googletag object| _qevents object| _comscore string| GoogleAnalyticsObject function| ga object| google_tag_data object| gaplugins string| clc_request function| moveScroller function| initTagRenderer function| showFadingHelpText function| initFadingHelpText function| styleCode object| UniversalAuth function| Svg function| EventEmitter function| klass object| Stimulus object| Stacks object| gaGlobal object| gaData function| quantserve function| __qc object| ezt object| _qoptions function| udm_ object| ns_p object| COMSCORE

0 Cookies

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header Value
Content-Security-Policy upgrade-insecure-requests
Strict-Transport-Security max-age=15552000
X-Frame-Options SAMEORIGIN

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

ajax.googleapis.com
cdn.sstatic.net
clc.stackoverflow.com
i.stack.imgur.com
pixel.quantserve.com
rules.quantcount.com
sb.scorecardresearch.com
secure.quantserve.com
stackoverflow.com
www.google-analytics.com
www.gravatar.com
104.16.2.35
151.101.1.69
23.43.115.95
2600:9000:200d:5600:6:44e3:f8c0:93a1
2a00:1450:4001:808::200a
2a00:1450:4001:817::200e
2a04:fa87:fffe::c000:4902
91.228.74.177
91.228.74.254
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20e3a026945f8bf54d2280edd138293f0a1fac73e43287d07e77bf6bf8751263
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404a9b0ffbcc813e8ddbb8d8510a24a69c09079282f8083ee94f4adc5d627176
4affe75fb9bb2ed6a61f99951f100cfcd864fd2cbb93ad38b45a25bee6cd356f
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7dff09578729615fcd15c840a32c9f82a33fe2331a851e4ac40be03cb111b3f0
8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015
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917ac9ff2923a5d28832c254f2f3184f32c9ad5211c149a2c1f5c97b3347b933
94be661daac374159418e0a70a079e5ae788505ea20cd1ab84c9dc6888584a5e
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9c2e010950f7cea81e2449177a84ed81af01da1bc39d803afbbed111243abb5f
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