Submitted URL: http://www.circuitlab.com/
Effective URL: https://www.circuitlab.com/
Submission: On December 17 via manual from US

Summary

This website contacted 12 IPs in 4 countries across 11 domains to perform 39 HTTP transactions. The main IP is 206.71.169.48, located in San Diego, United States and belongs to M5HOSTING, US. The main domain is www.circuitlab.com.
TLS certificate: Issued by Gandi Standard SSL CA 2 on October 21st 2020. Valid for: a year.
This is the only time www.circuitlab.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

Domain Requested by
20 www.circuitlab.com 1 redirects www.circuitlab.com
7 cdn.circuitlab.com www.circuitlab.com
2 www.facebook.com www.circuitlab.com
2 ssl.google-analytics.com 1 redirects www.circuitlab.com
2 connect.facebook.net www.circuitlab.com
connect.facebook.net
1 pixel.quantserve.com www.circuitlab.com
1 rules.quantcount.com secure.quantserve.com
1 stats.g.doubleclick.net www.circuitlab.com
1 secure.quantserve.com www.circuitlab.com
1 www.youtube.com www.circuitlab.com
1 tag.perfectaudience.com www.circuitlab.com
1 www.redditstatic.com www.circuitlab.com
1 ajax.googleapis.com www.circuitlab.com
39 13

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

Domain
ultimateelectronicsbook.com
Subject Issuer Validity Valid
www.circuitlab.com
Gandi Standard SSL CA 2
2020-10-21 -
2021-11-09
a year crt.sh
upload.video.google.com
GTS CA 1O1
2020-11-10 -
2021-02-02
3 months crt.sh
*.circuitlab.com
Amazon
2019-12-19 -
2021-01-19
a year crt.sh
*.facebook.com
DigiCert SHA2 High Assurance Server CA
2020-11-02 -
2021-01-30
3 months crt.sh
www.redditstatic.com
DigiCert SHA2 Secure Server CA
2020-08-26 -
2021-02-22
6 months crt.sh
*.google-analytics.com
GTS CA 1O1
2020-11-10 -
2021-02-02
3 months crt.sh
b2.shared.global.fastly.net
GlobalSign CloudSSL CA - SHA256 - G3
2020-12-11 -
2021-08-15
8 months crt.sh
*.google.com
GTS CA 1O1
2020-11-10 -
2021-02-02
3 months crt.sh
*.quantserve.com
DigiCert SHA2 High Assurance Server CA
2020-10-02 -
2021-10-07
a year crt.sh
*.g.doubleclick.net
GTS CA 1O1
2020-11-10 -
2021-02-02
3 months crt.sh

This page contains 2 frames:

Primary Page: https://www.circuitlab.com/
Frame ID: E44A16D3F75BD70BF7ADFD7FBC0A933A
Requests: 38 HTTP requests in this frame

Frame: https://www.youtube.com/embed/f52GV1IpwVk?rel=0
Frame ID: C5CE4AE074771864846533A1CB6F0141
Requests: 1 HTTP requests in this frame

Screenshot


Page URL History Show full URLs

  1. http://www.circuitlab.com/ HTTP 301
    https://www.circuitlab.com/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • html /<(?:param|embed|iframe)[^>]+youtube(?:-nocookie)?\.com\/(?:v|embed)/i

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

Overall confidence: 100%
Detected patterns
  • script /\/\/connect\.facebook\.net\/[^/]*\/[a-z]*\.js/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
  • script /\/([\d.]+)\/jquery(?:\.min)?\.js/i
  • script /jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?/i

Page Statistics

39
Requests

100 %
HTTPS

75 %
IPv6

11
Domains

13
Subdomains

12
IPs

4
Countries

521 kB
Transfer

1012 kB
Size

12
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://www.circuitlab.com/ HTTP 301
    https://www.circuitlab.com/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 32
  • https://ssl.google-analytics.com/r/__utm.gif?utmwv=5.7.2&utms=1&utmn=1585341377&utmhn=www.circuitlab.com&utme=8(VisitorType)9(anonymous)11(2)&utmcs=UTF-8&utmsr=1600x1200&utmvp=1600x1200&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=Online%20circuit%20simulator%20%26%20schematic%20editor%20-%20CircuitLab&utmhid=1052091578&utmr=-&utmp=%2F&utmht=1608237959584&utmac=UA-25913711-1&utmcc=__utma%3D254391450.757719618.1608237960.1608237960.1608237960.1%3B%2B__utmz%3D254391450.1608237960.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=2072382&utmredir=1&utmu=qRAAAAAAAAAAAAAAAAAAAAAE~ HTTP 302
  • https://stats.g.doubleclick.net/r/collect?v=1&aip=1&t=dc&_r=3&tid=UA-25913711-1&cid=757719618.1608237960&jid=2072382&_v=5.7.2&z=1585341377

39 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request Cookie set /
www.circuitlab.com/
Redirect Chain
  • http://www.circuitlab.com/
  • https://www.circuitlab.com/
28 KB
8 KB
Document
General
Full URL
https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
7868128db5c3d7b0883eb1d3f8babca6df0f8952911a8d53f6e8fb88008aab0c

Request headers

Host
www.circuitlab.com
Connection
keep-alive
Pragma
no-cache
Cache-Control
no-cache
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Sec-Fetch-Site
none
Sec-Fetch-Mode
navigate
Sec-Fetch-User
?1
Sec-Fetch-Dest
document
Accept-Encoding
gzip, deflate, br
Accept-Language
en-US
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Content-Length
7559
Content-Language
en-us
Content-Encoding
gzip
Vary
Cookie, Accept-Language, Accept-Encoding
X-From-Magic-Cache
fresh
Content-Type
text/html
Set-Cookie
csrftoken=d9Srtsz09Vht8Urweon2IgvCf2We1djP; Domain=.circuitlab.com; expires=Thu, 16-Dec-2021 20:45:58 GMT; Max-Age=31449600; Path=/; secure sessionid=b495e86a7121cc9c6df9077b1314a5ae; Domain=.circuitlab.com; expires=Sat, 16-Jan-2021 20:45:58 GMT; httponly; Max-Age=2592000; Path=/; secure
Date
Thu, 17 Dec 2020 20:45:58 GMT
Server
lighttpd

Redirect headers

Location
https://www.circuitlab.com/
Content-Length
0
Date
Thu, 17 Dec 2020 20:45:56 GMT
Server
lighttpd
public-1605901642.css
www.circuitlab.com/assets/css/
123 KB
21 KB
Stylesheet
General
Full URL
https://www.circuitlab.com/assets/css/public-1605901642.css
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
b314a99cc3e8c86fef6e3633b05752b5948e07d87611a13b8d68dbd26f911955

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:58 GMT
Content-Encoding
gzip
Last-Modified
Fri, 20 Nov 2020 19:47:23 GMT
Server
lighttpd
ETag
"1374627882"
Vary
Accept-Encoding
Content-Type
text/css
Accept-Ranges
bytes
Content-Length
21321
jquery.min.js
ajax.googleapis.com/ajax/libs/jquery/1.8.2/
91 KB
33 KB
Script
General
Full URL
https://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:821::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
sffe /
Resource Hash
f554d2f09272c6f71447ebfe4532d3b1dd1959bce669f9a5ccc99e64ef511729
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Origin
https://www.circuitlab.com
Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date
Tue, 15 Dec 2020 06:10:57 GMT
content-encoding
gzip
x-content-type-options
nosniff
age
225301
cross-origin-resource-policy
cross-origin
alt-svc
h3-29=":443"; ma=2592000,h3-T051=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
33621
x-xss-protection
0
last-modified
Tue, 03 Mar 2020 19:15:00 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
Wed, 15 Dec 2021 06:10:57 GMT
public-1605901674.js
www.circuitlab.com/assets/js/
40 KB
11 KB
Script
General
Full URL
https://www.circuitlab.com/assets/js/public-1605901674.js
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
550b98ac1719cf7dcebfb8662bf609f01cec03ca9000b9e51cb8dd74939bde73

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:59 GMT
Content-Encoding
gzip
Last-Modified
Fri, 20 Nov 2020 19:47:56 GMT
Server
lighttpd
ETag
"1989226832"
Vary
Accept-Encoding
Content-Type
application/javascript
Accept-Ranges
bytes
Content-Length
10544
/
www.circuitlab.com/accounts/_analyticscustomvarsjs/
281 B
619 B
Script
General
Full URL
https://www.circuitlab.com/accounts/_analyticscustomvarsjs/
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
2d81c80185538dc6f2f6fe90d1893e55a906cf9679e9d22475396288281171f3

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Pragma
no-cache
Date
Thu, 17 Dec 2020 20:45:59 GMT
Content-Encoding
gzip
Server
lighttpd
Vary
Cookie, Accept-Language, Accept-Encoding
Content-Language
en-us
Cache-Control
max-age=0, no-cache, must-revalidate
Content-Type
text/javascript
Content-Length
159
Expires
-1
topbar_logo_60_2x.png
www.circuitlab.com/assets/images/
10 KB
10 KB
Image
General
Full URL
https://www.circuitlab.com/assets/images/topbar_logo_60_2x.png
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
9717ebc9af6dbc0e97fb3bf2fc820fd5cff2cc0606ed00950558d955f09b2439

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:58 GMT
Last-Modified
Sat, 21 Mar 2020 21:08:13 GMT
Server
lighttpd
Accept-Ranges
bytes
ETag
"2488949937"
Content-Length
10230
Content-Type
image/png
gravatar_empty_50.png
www.circuitlab.com/assets/images/
645 B
853 B
Image
General
Full URL
https://www.circuitlab.com/assets/images/gravatar_empty_50.png
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
e50c97d25b42a1901abf06d47334352fbeb89d1e57eec4166b42462d9fa4b74d

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:59 GMT
Last-Modified
Sat, 21 Mar 2020 21:08:13 GMT
Server
lighttpd
Accept-Ranges
bytes
ETag
"3994951547"
Content-Length
645
Content-Type
image/png
20170112-UltimateElectronicsBookCover_red_v2.jpg
cdn.circuitlab.com/misc/
81 KB
82 KB
Image
General
Full URL
https://cdn.circuitlab.com/misc/20170112-UltimateElectronicsBookCover_red_v2.jpg
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2600:9000:2156:e200:3:84bc:7200:93a1 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
6fdb0b4a51628f93ebef5a3cf0e259448d13a99d9a36ee87c5139707e91745cc

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date
Thu, 17 Dec 2020 20:30:14 GMT
via
1.1 9128c49d19c76fd86ec4c647434ccb0a.cloudfront.net (CloudFront)
last-modified
Thu, 12 Jan 2017 21:55:57 GMT
server
AmazonS3
age
1155
etag
"36a5808b7f455aedd48af14c3b77c58c"
x-cache
Hit from cloudfront
content-type
image/jpeg
cache-control
public, max-age=3600
x-amz-cf-pop
FRA50-C1
accept-ranges
bytes
content-length
83083
x-amz-cf-id
cAxu6ysXh9h5jlo71l472wWh5ujO0fyy6esedrEJkjZAE4VXevRYUw==
homepage_schem_ss6.png
www.circuitlab.com/assets/images/
2 KB
2 KB
Image
General
Full URL
https://www.circuitlab.com/assets/images/homepage_schem_ss6.png
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
da3ad0321583079ee40f1229b3ade2e66578bfc06349548a3fa1603c5b2ef2ed

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:59 GMT
Last-Modified
Sat, 21 Mar 2020 21:08:13 GMT
Server
lighttpd
Accept-Ranges
bytes
ETag
"3904333495"
Content-Length
1960
Content-Type
image/png
homepage_schem_ss7.png
www.circuitlab.com/assets/images/
11 KB
11 KB
Image
General
Full URL
https://www.circuitlab.com/assets/images/homepage_schem_ss7.png
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
b08f9ab7487d2ab7e2866f7f9893be8e9d09681fd975a0e138f4082123a115e2

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:59 GMT
Last-Modified
Sat, 21 Mar 2020 21:08:13 GMT
Server
lighttpd
Accept-Ranges
bytes
ETag
"148528357"
Content-Length
11209
Content-Type
image/png
homepage_schem_ss1.png
www.circuitlab.com/assets/images/
5 KB
5 KB
Image
General
Full URL
https://www.circuitlab.com/assets/images/homepage_schem_ss1.png
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
7f46485bdfe45974fb371b2a15851e0cc3e5dfac2ace6b2a0b0ba3ea0bac899e

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:59 GMT
Last-Modified
Sat, 21 Mar 2020 21:08:13 GMT
Server
lighttpd
Accept-Ranges
bytes
ETag
"4174538657"
Content-Length
5273
Content-Type
image/png
homepage_schem_ss2.png
www.circuitlab.com/assets/images/
15 KB
15 KB
Image
General
Full URL
https://www.circuitlab.com/assets/images/homepage_schem_ss2.png
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
a7673dd7f79f4db4362cea305f2cc8aa8b776217f0a1375986308aa68723ffe6

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:59 GMT
Last-Modified
Sat, 21 Mar 2020 21:08:13 GMT
Server
lighttpd
Accept-Ranges
bytes
ETag
"87711213"
Content-Length
15638
Content-Type
image/png
homepage_schem_ss3.png
www.circuitlab.com/assets/images/
3 KB
4 KB
Image
General
Full URL
https://www.circuitlab.com/assets/images/homepage_schem_ss3.png
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
9095f3fdc10f7574bf5bf6432ef92c4aa8ee421307353afc6bcde93442323da3

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:59 GMT
Last-Modified
Sat, 21 Mar 2020 21:08:13 GMT
Server
lighttpd
Accept-Ranges
bytes
ETag
"3655099949"
Content-Length
3451
Content-Type
image/png
homepage_schem_ss4.png
www.circuitlab.com/assets/images/
28 KB
29 KB
Image
General
Full URL
https://www.circuitlab.com/assets/images/homepage_schem_ss4.png
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
faraday.circuitlab.com
Software
lighttpd /
Resource Hash
7c0030333fa503410fae864487c41afcb775f45f532ceaf9337e86a2c19fd0d9

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date
Thu, 17 Dec 2020 20:45:59 GMT
Last-Modified
Sat, 21 Mar 2020 21:08:13 GMT
Server
lighttpd
Accept-Ranges
bytes
ETag
"1480214243"
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Response headers

Date
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Full URL
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Requested by
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Protocol
HTTP/1.1
Security
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Response headers

Date
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Protocol
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Response headers

Date
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Response headers

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Response headers

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Response headers

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Response headers

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Response headers

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Request headers

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Response headers

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Response headers

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Response headers

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accept
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sec-fetch-site
cross-site
sec-fetch-mode
navigate
sec-fetch-dest
iframe
referer
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accept-encoding
gzip, deflate, br
accept-language
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Upgrade-Insecure-Requests
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Referer
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Response headers

x-content-type-options
nosniff
p3p
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expires
Tue, 27 Apr 1971 19:44:06 GMT
content-encoding
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cache-control
no-cache
content-type
text/html; charset=utf-8
strict-transport-security
max-age=31536000
content-length
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date
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server
YouTube Frontend Proxy
x-xss-protection
0
set-cookie
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alt-svc
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www.circuitlab.com/assets/images/
2 KB
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General
Full URL
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Requested by
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URL: https://www.circuitlab.com/assets/css/public-1605901642.css
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
206.71.169.48 San Diego, United States, ASN21581 (M5HOSTING, US),
Reverse DNS
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Software
lighttpd /
Resource Hash
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Request headers

Referer
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Response headers

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Server
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General
Full URL
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Requested by
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Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
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Software
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Resource Hash
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Request headers

Referer
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User-Agent
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Response headers

Date
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Last-Modified
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Server
lighttpd
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"839292964"
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quant.js
secure.quantserve.com/
23 KB
9 KB
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General
Full URL
https://secure.quantserve.com/quant.js
Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2620:116:800d:21:f916:5049:f87f:108e , United States, ASN16509 (AMAZON-02, US),
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Software
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Resource Hash
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Request headers

Referer
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User-Agent
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Response headers

date
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content-encoding
gzip
etag
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vary
Accept-Encoding
content-type
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cache-control
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accept-ranges
bytes
expires
Thu, 24 Dec 2020 20:45:59 GMT
collect
stats.g.doubleclick.net/r/
Redirect Chain
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Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:400c:c06::9b Brussels, Belgium, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
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Security Headers
Name Value
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X-Content-Type-Options nosniff

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

pragma
no-cache
strict-transport-security
max-age=10886400; includeSubDomains; preload
x-content-type-options
nosniff
last-modified
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server
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date
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content-type
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content-length
35
expires
Fri, 01 Jan 1990 00:00:00 GMT

Redirect headers

pragma
no-cache
date
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last-modified
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server
Golfe2
location
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content-type
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access-control-allow-origin
*
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cross-origin-resource-policy
cross-origin
alt-svc
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content-length
367
expires
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1711539685814181
connect.facebook.net/signals/config/
238 KB
69 KB
Script
General
Full URL
https://connect.facebook.net/signals/config/1711539685814181?v=2.9.30&r=stable
Requested by
Host: connect.facebook.net
URL: https://connect.facebook.net/en_US/fbevents.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a03:2880:f01c:8012:face:b00c:0:3 , Ireland, ASN32934 (FACEBOOK, US),
Reverse DNS
Software
/
Resource Hash
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Security Headers
Name Value
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X-Content-Type-Options nosniff
X-Frame-Options DENY
X-Xss-Protection 0

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

content-security-policy
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cross-origin-resource-policy
cross-origin
alt-svc
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strict-transport-security
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report-to
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content-type
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vary
Accept-Encoding
cache-control
public, max-age=1200
x-content-id
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expires
Sat, 01 Jan 2000 00:00:00 GMT
rules-p-Jg9kvG7twHpdb.js
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3 B
358 B
Script
General
Full URL
https://rules.quantcount.com/rules-p-Jg9kvG7twHpdb.js
Requested by
Host: secure.quantserve.com
URL: https://secure.quantserve.com/quant.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
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Reverse DNS
Software
AmazonS3 /
Resource Hash
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Request headers

Referer
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User-Agent
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Response headers

date
Thu, 17 Dec 2020 15:41:56 GMT
via
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last-modified
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server
AmazonS3
age
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General
Full URL
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Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
2620:116:800d:21:f916:5049:f87f:108e , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
Software
/
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=86400

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

pragma
no-cache
date
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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
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image/gif
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expires
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/
www.facebook.com/tr/
44 B
260 B
Image
General
Full URL
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Requested by
Host: www.circuitlab.com
URL: https://www.circuitlab.com/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a03:2880:f11c:8183:face:b00c:0:25de , Ireland, ASN32934 (FACEBOOK, US),
Reverse DNS
Software
proxygen-bolt /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date
Thu, 17 Dec 2020 20:45:59 GMT
last-modified
Fri, 21 Dec 2012 00:00:01 GMT
server
proxygen-bolt
strict-transport-security
max-age=31536000; includeSubDomains
content-type
image/gif
cache-control
no-cache, must-revalidate, max-age=0
alt-svc
h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
content-length
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expires
Thu, 17 Dec 2020 20:45:59 GMT
/
www.facebook.com/tr/
44 B
146 B
Image
General
Full URL
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Protocol
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Security
TLS 1.3, , AES_128_GCM
Server
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Reverse DNS
Software
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Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains

Request headers

Referer
https://www.circuitlab.com/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date
Thu, 17 Dec 2020 20:46:00 GMT
last-modified
Fri, 21 Dec 2012 00:00:01 GMT
server
proxygen-bolt
strict-transport-security
max-age=31536000; includeSubDomains
content-type
image/gif
cache-control
no-cache, must-revalidate, max-age=0
alt-svc
h3-29=":443"; ma=3600,h3-27=":443"; ma=3600
content-length
44
expires
Thu, 17 Dec 2020 20:46:00 GMT

Verdicts & Comments Add Verdict or Comment

78 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| 0 object| ontransitionrun object| ontransitionstart object| ontransitioncancel object| cookieStore function| showDirectoryPicker function| showOpenFilePicker function| showSaveFilePicker object| trustedTypes boolean| crossOriginIsolated function| $ function| jQuery object| experiments object| Kicksend function| gettext function| ngettext function| gettext_noop function| pgettext function| npgettext function| interpolate function| fbq function| _fbq function| rdt function| clearMenus function| BootstrapFormsAjaxValidator function| BootstrapFormsMailcheck function| browserwarning_check function| browserwarning_show function| browserwarning_test function| circuit_page_set_accessmode_handler function| circuit_page_set_commentable_handler function| circuit_page_summary_edit function| circuit_page_summary_form_save function| circuit_page_summary_form_cancel function| circuit_page_description_edit function| circuit_page_description_form_save function| circuit_page_description_form_cancel function| circuit_page_rename_edit function| circuit_page_rename_form_save function| circuit_page_rename_form_cancel function| circuit_page_tag_add function| circuit_page_tag_add_handler function| circuit_page_tag_remove function| circuit_page_render_export_handler function| circuit_page_linkandshare_setup function| circuit_page_hint_glow function| delete_comment function| flag_ugc function| get_cookie function| set_cookie function| circuitlab_errorlog function| hint_glow_effect function| delete_notification function| tracker_track function| post_to_editor function| post_to_editor_link_handler function| subunsubwidget function| circuitlab_clear_offline_localstore function| delete_question function| delete_answer function| edit_question function| edit_answer function| questions_answer_vote function| questions_answer_vote_clickable function| question_page_retitle_edit function| question_page_retitle_form_cancel function| questions_editor_embed_setup function| upgrade_chat_bottombar_show object| _gaq object| _qevents object| _pa object| _gat object| gaGlobal function| quantserve function| __qc object| ezt object| _qoptions function| qtrack

12 Cookies

Domain/Path Name / Value
.youtube.com/ Name: YSC
Value: K7AkUEXE0hs
.circuitlab.com/ Name: __utmz
Value: 254391450.1608237960.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)
.youtube.com/ Name: VISITOR_INFO1_LIVE
Value: j6E9yanrADQ
.www.circuitlab.com/ Name: _rdt_uuid
Value: 1608237959599.5a70c7ec-49d0-45da-9a8b-d1d88fc60979
.circuitlab.com/ Name: __qca
Value: P0-845745887-1608237959658
.circuitlab.com/ Name: __utmt
Value: 1
.circuitlab.com/ Name: __utma
Value: 254391450.757719618.1608237960.1608237960.1608237960.1
.circuitlab.com/ Name: _fbp
Value: fb.1.1608237959690.458548936
.circuitlab.com/ Name: sessionid
Value: b495e86a7121cc9c6df9077b1314a5ae
.circuitlab.com/ Name: __utmb
Value: 254391450.1.10.1608237960
.circuitlab.com/ Name: __utmc
Value: 254391450
.circuitlab.com/ Name: csrftoken
Value: d9Srtsz09Vht8Urweon2IgvCf2We1djP

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.circuitlab.com
connect.facebook.net
pixel.quantserve.com
rules.quantcount.com
secure.quantserve.com
ssl.google-analytics.com
stats.g.doubleclick.net
tag.perfectaudience.com
www.circuitlab.com
www.facebook.com
www.redditstatic.com
www.youtube.com
151.101.113.140
151.101.130.217
206.71.169.48
2600:9000:2156:e200:3:84bc:7200:93a1
2600:9000:2182:fe00:6:44e3:f8c0:93a1
2620:116:800d:21:f916:5049:f87f:108e
2a00:1450:4001:801::200e
2a00:1450:4001:81a::2008
2a00:1450:4001:821::200a
2a00:1450:400c:c06::9b
2a03:2880:f01c:8012:face:b00c:0:3
2a03:2880:f11c:8183:face:b00c:0:25de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