Submitted URL: http://stackoverflow.com/
Effective URL: https://stackoverflow.com/
Submission: On February 24 via manual from US

Summary

This website contacted 8 IPs in 4 countries across 7 domains to perform 50 HTTP transactions. The main IP is 151.101.193.69, located in United States and belongs to FASTLY, US. The main domain is stackoverflow.com.
TLS certificate: Issued by Let's Encrypt Authority X3 on January 23rd 2020. Valid for: 3 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
1 39 151.101.193.69 54113 (FASTLY)
1 2a00:1450:400... 15169 (GOOGLE)
4 151.101.65.69 54113 (FASTLY)
2 2a00:1450:400... 15169 (GOOGLE)
1 91.228.74.147 27281 (QUANTCAST)
1 3 104.108.39.228 16625 (AKAMAI-AS)
1 2600:9000:214... 16509 (AMAZON-02)
1 91.228.74.133 27281 (QUANTCAST)
50 8
Domain Requested by
41 cdn.sstatic.net stackoverflow.com
cdn.sstatic.net
3 sb.scorecardresearch.com 1 redirects stackoverflow.com
2 www.google-analytics.com stackoverflow.com
www.google-analytics.com
2 stackoverflow.com 1 redirects
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
50 8

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

Domain
chat.stackoverflow.com
meta.stackoverflow.com
stackexchange.com
stackoverflow.blog
www.g2.com
www.fastcompany.com
insights.stackoverflow.com
stackoverflowbusiness.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
apple.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
codegolf.stackexchange.com
es.stackoverflow.com
ethereum.stackexchange.com
datascience.stackexchange.com
arduino.stackexchange.com
bitcoin.stackexchange.com
sqa.stackexchange.com
sound.stackexchange.com
windowsphone.stackexchange.com
photo.stackexchange.com
scifi.stackexchange.com
graphicdesign.stackexchange.com
movies.stackexchange.com
music.stackexchange.com
worldbuilding.stackexchange.com
video.stackexchange.com
cooking.stackexchange.com
diy.stackexchange.com
money.stackexchange.com
academia.stackexchange.com
law.stackexchange.com
fitness.stackexchange.com
gardening.stackexchange.com
parenting.stackexchange.com
english.stackexchange.com
skeptics.stackexchange.com
judaism.stackexchange.com
travel.stackexchange.com
christianity.stackexchange.com
ell.stackexchange.com
japanese.stackexchange.com
chinese.stackexchange.com
french.stackexchange.com
german.stackexchange.com
hermeneutics.stackexchange.com
history.stackexchange.com
spanish.stackexchange.com
islam.stackexchange.com
rus.stackexchange.com
russian.stackexchange.com
gaming.stackexchange.com
bicycles.stackexchange.com
rpg.stackexchange.com
anime.stackexchange.com
puzzling.stackexchange.com
mechanics.stackexchange.com
boardgames.stackexchange.com
bricks.stackexchange.com
homebrew.stackexchange.com
martialarts.stackexchange.com
outdoors.stackexchange.com
poker.stackexchange.com
chess.stackexchange.com
sports.stackexchange.com
mathoverflow.net
math.stackexchange.com
stats.stackexchange.com
cstheory.stackexchange.com
physics.stackexchange.com
chemistry.stackexchange.com
biology.stackexchange.com
cs.stackexchange.com
philosophy.stackexchange.com
linguistics.stackexchange.com
psychology.stackexchange.com
scicomp.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
Let's Encrypt Authority X3
2020-01-23 -
2020-04-22
3 months crt.sh
*.storage.googleapis.com
GTS CA 1O1
2020-02-12 -
2020-05-06
3 months crt.sh
*.google-analytics.com
GTS CA 1O1
2020-02-12 -
2020-05-06
3 months crt.sh
*.quantserve.com
DigiCert SHA2 High Assurance Server CA
2019-10-04 -
2020-10-07
a year crt.sh
*.scorecardresearch.com
Sectigo RSA Organization Validation Secure Server CA
2019-12-16 -
2020-12-25
a year crt.sh

This page contains 1 frames:

Primary Page: https://stackoverflow.com/
Frame ID: EF5E542A18BA9530B3E3EBFDD6CEAAF5
Requests: 50 HTTP requests in this frame

Screenshot


Page URL History Show full URLs

  1. http://stackoverflow.com/ HTTP 301
    https://stackoverflow.com/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • headers via /varnish(?: \(Varnish\/([\d.]+)\))?/i

Overall confidence: 100%
Detected patterns
  • headers vary /Fastly-SSL/i

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

Overall confidence: 100%
Detected patterns
  • script /\.quantserve\.com\/quant\.js/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

Overall confidence: 100%
Detected patterns
  • script /\/([\d.]+)\/jquery(?:\.min)?\.js/i
  • script /jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?/i

Page Statistics

50
Requests

100 %
HTTPS

38 %
IPv6

7
Domains

8
Subdomains

8
IPs

4
Countries

401 kB
Transfer

1412 kB
Size

5
Cookies

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

  1. http://stackoverflow.com/ HTTP 301
    https://stackoverflow.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 46
  • https://sb.scorecardresearch.com/b?c1=2&c2=17440561&ns__t=1582569841694&ns_c=UTF-8&cv=3.5&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=1582569841694&ns_c=UTF-8&cv=3.5&c8=Stack%20Overflow%20-%20Where%20Developers%20Learn%2C%20Share%2C%20%26%20Build%20Careers&c7=https%3A%2F%2Fstackoverflow.com%2F&c9=

50 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
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Redirect Chain
  • http://stackoverflow.com/
  • https://stackoverflow.com/
110 KB
26 KB
Document
General
Full URL
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Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
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Reverse DNS
Software
/
Resource Hash
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Security Headers
Name Value
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X-Frame-Options SAMEORIGIN

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:scheme
https
:path
/
pragma
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cache-control
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upgrade-insecure-requests
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user-agent
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sec-fetch-site
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sec-fetch-mode
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sec-fetch-user
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cookie
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User-Agent
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Response headers

status
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cache-control
private
content-type
text/html; charset=utf-8
content-encoding
gzip
x-frame-options
SAMEORIGIN
x-request-guid
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Redirect headers

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X-Request-Guid
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Feature-Policy
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95 KB
33 KB
Script
General
Full URL
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Requested by
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Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
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Resource Hash
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Security Headers
Name Value
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Request headers

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User-Agent
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Sec-Fetch-Dest
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Response headers

date
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content-encoding
gzip
x-content-type-options
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age
2796084
status
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alt-svc
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server
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accept-ranges
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Script
General
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Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
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Request headers

Referer
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Sec-Fetch-Dest
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Response headers

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content-encoding
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cache-control
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Stylesheet
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Requested by
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Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.193.69 , United States, ASN54113 (FASTLY, US),
Reverse DNS
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Resource Hash
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Request headers

Referer
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User-Agent
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Sec-Fetch-Dest
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Response headers

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content-encoding
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age
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x-cache
HIT
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Stylesheet
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Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.193.69 , United States, ASN54113 (FASTLY, US),
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Request headers

Referer
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Sec-Fetch-Dest
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Response headers

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Server
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Request headers

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Response headers

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Request headers

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Response headers

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Server
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Request headers

Referer
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Response headers

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Request headers

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Response headers

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Request headers

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Security Headers
Name Value
Strict-Transport-Security max-age=86400

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
Sec-Fetch-Dest
script

Response headers

Date
Mon, 24 Feb 2020 18:44:01 GMT
Content-Encoding
gzip
Last-Modified
Mon, 24-Feb-2020 18:44:01 GMT
Server
QS
Etag
M0-56c8c653
Vary
Accept-Encoding
Strict-Transport-Security
max-age=86400
Content-Type
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Cache-Control
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Connection
keep-alive
Content-Length
5651
Expires
Mon, 02 Mar 2020 18:44:01 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
104.108.39.228 , Netherlands, ASN16625 (AKAMAI-AS, US),
Reverse DNS
a104-108-39-228.deploy.static.akamaitechnologies.com
Software
/
Resource Hash
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Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
Sec-Fetch-Dest
script

Response headers

Date
Mon, 24 Feb 2020 18:44:01 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
884
Expires
Tue, 25 Feb 2020 18:44:01 GMT
full-anon.en.js
cdn.sstatic.net/Js/
228 KB
68 KB
Script
General
Full URL
https://cdn.sstatic.net/Js/full-anon.en.js?v=d57a449e351b
Requested by
Host: cdn.sstatic.net
URL: https://cdn.sstatic.net/Js/stub.en.js?v=adece94158f0
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
151.101.193.69 , United States, ASN54113 (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_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
Sec-Fetch-Dest
script

Response headers

date
Mon, 24 Feb 2020 18:44:01 GMT
content-encoding
gzip
age
5911
x-cache
HIT
status
200
content-length
69373
via
1.1 varnish
x-served-by
cache-lon4222-LON
last-modified
Mon, 24 Feb 2020 17:03:56 GMT
x-timer
S1582569842.583629,VS0,VE0
vary
Accept-Encoding,Accept-Encoding
content-type
application/javascript
access-control-allow-origin
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cache-control
max-age=604800
accept-ranges
bytes
x-cache-hits
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collect
www.google-analytics.com/r/
35 B
128 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
2a00:1450:4001:800::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, 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
Sec-Fetch-Dest
empty
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
Content-Type
text/plain;charset=UTF-8

Response headers

pragma
no-cache
date
Mon, 24 Feb 2020 18:44:01 GMT
x-content-type-options
nosniff
last-modified
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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
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content-length
35
expires
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b2
sb.scorecardresearch.com/
Redirect Chain
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  • https://sb.scorecardresearch.com/b2?c1=2&c2=17440561&ns__t=1582569841694&ns_c=UTF-8&cv=3.5&c8=Stack%20Overflow%20-%20Where%20Developers%20Learn%2C%20Share%2C%20%26%20Build%20Careers&c7=https%3A%2F%...
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Image
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Full URL
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Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
104.108.39.228 , Netherlands, ASN16625 (AKAMAI-AS, US),
Reverse DNS
a104-108-39-228.deploy.static.akamaitechnologies.com
Software
/
Resource Hash
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Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

Pragma
no-cache
Date
Mon, 24 Feb 2020 18:44:01 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
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no-cache
Date
Mon, 24 Feb 2020 18:44:01 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
rules-p-c1rF4kxgLUzNc.js
rules.quantcount.com/
3 B
357 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
2600:9000:214f:1600:6:44e3:f8c0:93a1 , United States, ASN16509 (AMAZON-02, 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_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
Sec-Fetch-Dest
script

Response headers

date
Mon, 24 Feb 2020 16:00:16 GMT
via
1.1 0cbb1ca51bf146be48b40804581e4466.cloudfront.net (CloudFront)
last-modified
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server
AmazonS3
age
9826
etag
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x-cache
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content-type
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cache-control
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x-amz-cf-pop
FRA53-C1
accept-ranges
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x-amz-cf-id
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pixel.quantserve.com/
35 B
658 B
Image
General
Full URL
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Requested by
Host: stackoverflow.com
URL: https://stackoverflow.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
91.228.74.133 , United Kingdom, ASN27281 (QUANTCAST, US),
Reverse DNS
Software
QS /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=86400

Request headers

Referer
https://stackoverflow.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
Sec-Fetch-Dest
image

Response headers

Pragma
no-cache
Date
Mon, 24 Feb 2020 18:44:01 GMT
Server
QS
Strict-Transport-Security
max-age=86400
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
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Content-Length
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Expires
Fri, 04 Aug 1978 12:00:00 GMT

Verdicts & Comments Add Verdict or Comment

42 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| onformdata object| onpointerrawupdate function| $ function| jQuery function| IsMalwareProxy object| StackExchange object| jQuery1124019514396879251006 number| tourAutoplay object| tourItemActiveClass object| tourTriggers number| tourIndex number| tourAutoplayer function| tourInitAutoplay function| tourKillAutoplay object| _qevents object| _comscore string| GoogleAnalyticsObject function| ga object| google_tag_data object| gaplugins function| moveScroller function| initTagRenderer function| showFadingHelpText function| initFadingHelpText function| styleCode object| UniversalAuth function| Svg function| __extends object| Stacks function| EventEmitter function| klass object| Stimulus function| Popper object| gaGlobal object| gaData function| udm_ object| ns_p object| COMSCORE function| quantserve function| __qc object| ezt object| _qoptions

5 Cookies

Domain/Path Name / Value
.stackoverflow.com/ Name: __qca
Value: P0-1205845567-1582569841724
.stackoverflow.com/ Name: _gat
Value: 1
.stackoverflow.com/ Name: _ga
Value: GA1.2.1029063510.1582569842
.stackoverflow.com/ Name: _gid
Value: GA1.2.201760364.1582569842
.stackoverflow.com/ Name: prov
Value: d18e4ca5-095b-4675-3002-6adefd4baa50

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; frame-ancestors 'self' https://stackexchange.com
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
pixel.quantserve.com
rules.quantcount.com
sb.scorecardresearch.com
secure.quantserve.com
stackoverflow.com
www.google-analytics.com
104.108.39.228
151.101.193.69
151.101.65.69
2600:9000:214f:1600:6:44e3:f8c0:93a1
2a00:1450:4001:800::200e
2a00:1450:4001:819::200a
91.228.74.133
91.228.74.147
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