URL: https://www.classcentral.com/report/free-certificates/
Submission: On January 20 via api from CZ — Scanned from DE

Summary

This website contacted 7 IPs in 2 countries across 5 domains to perform 44 HTTP transactions. The main IP is 34.68.4.21, located in Council Bluffs, United States and belongs to GOOGLE, US. The main domain is www.classcentral.com. The Cisco Umbrella rank of the primary domain is 733070.
TLS certificate: Issued by Sectigo RSA Domain Validation Secure ... on March 10th 2021. Valid for: a year.
This is the only time www.classcentral.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
37 34.68.4.21 15169 (GOOGLE)
1 2606:4700::68... 13335 (CLOUDFLAR...)
1 2a04:4e42:1b:... 54113 (FASTLY)
2 2a00:1450:400... 15169 (GOOGLE)
2 2001:4860:480... 15169 (GOOGLE)
1 198.145.13.14 2044 (DF-PTL01)
44 7
Apex Domain
Subdomains
Transfer
37 classcentral.com
www.classcentral.com — Cisco Umbrella Rank: 733070
616 KB
2 cloudfunctions.net
us-central1-class-central-prod.cloudfunctions.net
15 B
2 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 42
20 KB
2 getclicky.com
static.getclicky.com — Cisco Umbrella Rank: 11658
in.getclicky.com — Cisco Umbrella Rank: 9623
6 KB
1 imgix.net
ccweb.imgix.net
2 KB
44 5
Domain Requested by
37 www.classcentral.com www.classcentral.com
2 us-central1-class-central-prod.cloudfunctions.net www.classcentral.com
2 www.google-analytics.com www.classcentral.com
www.google-analytics.com
1 in.getclicky.com static.getclicky.com
1 ccweb.imgix.net www.classcentral.com
1 static.getclicky.com www.classcentral.com
44 6
Subject Issuer Validity Valid
*.classcentral.com
Sectigo RSA Domain Validation Secure Server CA
2021-03-10 -
2022-04-09
a year crt.sh
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3
2021-07-05 -
2022-07-04
a year crt.sh
*.imgix.com
GlobalSign Atlas R3 DV TLS CA 2020
2021-05-10 -
2022-06-11
a year crt.sh
*.google-analytics.com
GTS CA 1C3
2021-12-08 -
2022-03-02
3 months crt.sh
misc.google.com
GTS CA 1C3
2021-12-08 -
2022-03-02
3 months crt.sh
*.getclicky.com
Sectigo RSA Domain Validation Secure Server CA
2020-08-03 -
2022-08-03
2 years crt.sh

This page contains 1 frames:

Primary Page: https://www.classcentral.com/report/free-certificates/
Frame ID: 3C8DC08B3E69DA2BCCFD85512D89CA25
Requests: 61 HTTP requests in this frame

Screenshot

Page Title

[2022] Massive List of Thousands of Free Certificates and Badges — Class Central

Detected technologies

Overall confidence: 100%
Detected patterns
  • <link rel=["']stylesheet["'] [^>]+/wp-(?:content|includes)/
  • /wp-(?:content|includes)/

Overall confidence: 100%
Detected patterns
  • <link rel="amphtml"

Overall confidence: 100%
Detected patterns
  • <!-- This site is optimized with the Yoast (?:WordPress )?SEO plugin v([\d.]+) -

Overall confidence: 100%
Detected patterns
  • static\.getclicky\.com

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

Overall confidence: 100%
Detected patterns
  • select2(?:\.min|\.full)?\.js

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

Overall confidence: 100%
Detected patterns
  • jquery[.-]migrate(?:-([\d.]+))?(?:\.min)?\.js(?:\?ver=([\d.]+))?

Page Statistics

44
Requests

100 %
HTTPS

67 %
IPv6

5
Domains

6
Subdomains

7
IPs

2
Countries

644 kB
Transfer

1261 kB
Size

8
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

44 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
www.classcentral.com/report/free-certificates/
301 KB
56 KB
Document
General
Full URL
https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx / PHP/7.1.22
Resource Hash
3bd39a4dc5a3e4a0be394e5ff4f63d817b07a1c5ae609f63a5290099114b687e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN sameorigin
X-Xss-Protection 1; mode=block

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Accept-Language
de-DE,de;q=0.9

Response headers

server
nginx
date
Thu, 20 Jan 2022 15:58:07 GMT
content-type
text/html; charset=UTF-8
vary
Accept-Encoding Accept-Encoding
x-powered-by
PHP/7.1.22
last-modified
Thu, 20 Jan 2022 03:03:56 GMT
x-frame-options
SAMEORIGIN sameorigin
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
x-content-type-options
nosniff
content-encoding
gzip
frontend.min.css
www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/css/
72 KB
12 KB
Stylesheet
General
Full URL
https://www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/css/frontend.min.css?ver=3.2.5
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
3a03eec8b6b8f7367f1b66ff53ac880713e88c910b739e00c7c022534c179e57
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 20 Dec 2021 16:28:08 GMT
server
nginx
x-frame-options
SAMEORIGIN, sameorigin
etag
W/"61c0af18-11e7c"
vary
Accept-Encoding, Accept-Encoding
content-type
text/css
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
flatpickr.min.css
www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/flatpickr/
16 KB
4 KB
Stylesheet
General
Full URL
https://www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/flatpickr/flatpickr.min.css?ver=3.2.5
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
661e00570c65c29528d9ce6ee19e5e9939986716c293def67b07f8b6a191b018
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 20 Dec 2021 16:28:08 GMT
server
nginx
x-frame-options
SAMEORIGIN, sameorigin
etag
W/"61c0af18-3e52"
vary
Accept-Encoding, Accept-Encoding
content-type
text/css
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
select2.min.css
www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/select2/
15 KB
3 KB
Stylesheet
General
Full URL
https://www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/select2/select2.min.css?ver=5.8.2
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
044efea78208376302aad3808aaabdf3c2f7bdd80ba9d55c9e0e4d3baa7a3908
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 20 Dec 2021 16:28:08 GMT
server
nginx
x-frame-options
SAMEORIGIN, sameorigin
etag
W/"61c0af18-3a75"
vary
Accept-Encoding, Accept-Encoding
content-type
text/css
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
jquery.min.js
www.classcentral.com/report/wp-includes/js/jquery/
87 KB
34 KB
Script
General
Full URL
https://www.classcentral.com/report/wp-includes/js/jquery/jquery.min.js?ver=3.6.0
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
bd4de6a3fc0fb68d6f76ba7b93514b96a92e585c295b5351c31ad92a4b0777ea
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 20 Dec 2021 16:27:16 GMT
server
nginx
x-frame-options
SAMEORIGIN, sameorigin
etag
W/"61c0aee4-15db1"
vary
Accept-Encoding, Accept-Encoding
content-type
application/javascript
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
jquery-migrate.min.js
www.classcentral.com/report/wp-includes/js/jquery/
11 KB
5 KB
Script
General
Full URL
https://www.classcentral.com/report/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.3.2
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
029e0a2e809fd6b5dbe76abe8b7a74936be306c9a8c27c814c4d44aa54623300
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Tue, 22 Dec 2020 07:05:02 GMT
server
nginx
x-frame-options
SAMEORIGIN, sameorigin
etag
W/"5fe19a9e-2bd8"
vary
Accept-Encoding, Accept-Encoding
content-type
application/javascript
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
flatpickr.min.js
www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/flatpickr/
49 KB
16 KB
Script
General
Full URL
https://www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/flatpickr/flatpickr.min.js?ver=5.8.2
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
587e022b442a0d7013a27f5fd2db035e28a74318d44dac1ac431f124c615bb37
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 20 Dec 2021 16:28:08 GMT
server
nginx
x-frame-options
SAMEORIGIN, sameorigin
etag
W/"61c0af18-c205"
vary
Accept-Encoding, Accept-Encoding
content-type
application/javascript
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
select2.min.js
www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/select2/
69 KB
23 KB
Script
General
Full URL
https://www.classcentral.com/report/wp-content/plugins/wp-user-avatar/assets/select2/select2.min.js?ver=5.8.2
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
00501810e93307a8882a74d864e7547fd1458deea539361dc1124ac133799a4b
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 20 Dec 2021 16:28:08 GMT
server
nginx
x-frame-options
SAMEORIGIN, sameorigin
etag
W/"61c0af18-114c3"
vary
Accept-Encoding, Accept-Encoding
content-type
application/javascript
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
js
static.getclicky.com/
15 KB
6 KB
Script
General
Full URL
https://static.getclicky.com/js
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
2606:4700::6810:dd1d , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
bacfe860f5e5d8ddc38de0220d3625bdf3cd201e85b963865a4f25fc66cb60a2

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
cf-cache-status
HIT
last-modified
Wed, 19 Jan 2022 18:15:49 GMT
server
cloudflare
age
78138
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding, Accept-Encoding
content-type
text/javascript; charset=utf-8
access-control-allow-origin
*
expires
Thu, 27 Jan 2022 15:58:07 GMT
cache-control
public, max-age=604800
cf-ray
6d0980a1eaf18be1-FRA
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
x-proxy-cache
HIT
cc-style.16a1d4c388f845c4e6fc.css
www.classcentral.com/report/wp-content/themes/blue-steel-v2/dist/webpack/
70 KB
21 KB
Stylesheet
General
Full URL
https://www.classcentral.com/report/wp-content/themes/blue-steel-v2/dist/webpack/cc-style.16a1d4c388f845c4e6fc.css
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
97a61cfebd5a0ea3061631ea045b3830e5d0204063a8e2de6c395ea8f9339eb7
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 28 Jun 2021 02:25:15 GMT
server
nginx
x-frame-options
SAMEORIGIN, sameorigin
etag
W/"60d9330b-11714"
vary
Accept-Encoding, Accept-Encoding
content-type
text/css
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
degree-yellow.svg
www.classcentral.com/images/promobar/
1 KB
851 B
Image
General
Full URL
https://www.classcentral.com/images/promobar/degree-yellow.svg
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
c734b18bdd392b75f45c02723e20d1094fe9413db515c0265924e39356ad9532
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Sat, 10 Jul 2021 00:51:26 GMT
server
nginx
x-frame-options
sameorigin
etag
W/"60e8ef0e-4be"
vary
Accept-Encoding
content-type
image/svg+xml
strict-transport-security
max-age=31536000; includeSubDomains; preload;
x-xss-protection
1; mode=block
rui_ma-150x150.jpg
www.classcentral.com/report/wp-content/uploads/2019/11/
3 KB
3 KB
Image
General
Full URL
https://www.classcentral.com/report/wp-content/uploads/2019/11/rui_ma-150x150.jpg
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
3a3d50dc95864bf7006f26f8ef7df4e483ea207b9bbbf562a9e66da21e837e53
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
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Response headers

date
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x-content-type-options
nosniff
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server
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Protocol
H2
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TLS 1.3, , AES_128_GCM
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Request headers

Accept-Language
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User-Agent
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Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
x-content-type-options
nosniff
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server
nginx
etag
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x-frame-options
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Request headers

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User-Agent
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Response headers

date
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x-content-type-options
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server
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Protocol
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Accept-Language
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User-Agent
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Response headers

date
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x-content-type-options
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server
nginx
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Protocol
H2
Security
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Accept-Language
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User-Agent
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Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
x-content-type-options
nosniff
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server
nginx
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Protocol
H2
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Request headers

Accept-Language
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User-Agent
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Response headers

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x-content-type-options
nosniff
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server
nginx
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URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
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TLS 1.3, , AES_128_GCM
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34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
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Request headers

Accept-Language
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User-Agent
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Response headers

date
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x-content-type-options
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server
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Protocol
H2
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User-Agent
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Response headers

date
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x-content-type-options
nosniff
last-modified
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server
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User-Agent
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date
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x-content-type-options
nosniff
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server
nginx
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H2
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Request headers

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Referer
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User-Agent
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date
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x-content-type-options
nosniff
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server
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Protocol
H2
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Request headers

Accept-Language
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Referer
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User-Agent
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Response headers

date
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content-encoding
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x-content-type-options
nosniff
last-modified
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server
nginx
x-frame-options
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URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
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nginx /
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Request headers

Accept-Language
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Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
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Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
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server
nginx
x-frame-options
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vary
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Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
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Software
nginx /
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Security Headers
Name Value
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Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
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Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
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server
nginx
x-frame-options
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etag
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vary
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Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
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Software
nginx /
Resource Hash
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Security Headers
Name Value
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Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
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Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
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server
nginx
x-frame-options
SAMEORIGIN, sameorigin
etag
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vary
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content-type
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Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
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Full URL
https://www.classcentral.com/fonts/source-sans-pro-unhinted/source-sans-pro-700-bold-latin.woff2
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
487f2e9da2ff0740755a5ef01dc15a2888b89537795895203a831b13b199d8bb
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options sameorigin
X-Xss-Protection 1; mode=block

Request headers

Referer
https://www.classcentral.com/report/free-certificates/
Origin
https://www.classcentral.com
Accept-Language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
x-content-type-options
nosniff
last-modified
Thu, 15 Oct 2020 04:50:23 GMT
server
nginx
etag
"5f87d50f-32b0"
x-frame-options
sameorigin
content-type
font/woff2
cache-control
max-age=31536000
strict-transport-security
max-age=31536000; includeSubDomains; preload;
accept-ranges
bytes
content-length
12976
x-xss-protection
1; mode=block
expires
Fri, 20 Jan 2023 15:58:07 GMT
source-sans-pro-400-italic-latin.woff2
www.classcentral.com/fonts/source-sans-pro-unhinted/
12 KB
13 KB
Font
General
Full URL
https://www.classcentral.com/fonts/source-sans-pro-unhinted/source-sans-pro-400-italic-latin.woff2
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
7cc2c8a7bd96173ee2a862c122630ab8d45ad0676ad2ad60fc55307763782230
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options sameorigin
X-Xss-Protection 1; mode=block

Request headers

Referer
https://www.classcentral.com/report/free-certificates/
Origin
https://www.classcentral.com
Accept-Language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
x-content-type-options
nosniff
last-modified
Thu, 15 Oct 2020 04:50:23 GMT
server
nginx
etag
"5f87d50f-3170"
x-frame-options
sameorigin
content-type
font/woff2
cache-control
max-age=31536000
strict-transport-security
max-age=31536000; includeSubDomains; preload;
accept-ranges
bytes
content-length
12656
x-xss-protection
1; mode=block
expires
Fri, 20 Jan 2023 15:58:07 GMT
source-sans-pro-400-regular-cyrillic.woff2
www.classcentral.com/fonts/source-sans-pro-unhinted/
8 KB
8 KB
Font
General
Full URL
https://www.classcentral.com/fonts/source-sans-pro-unhinted/source-sans-pro-400-regular-cyrillic.woff2
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
2bc69c1c1c4bf49e80a77f83010c01e575fd6922229943b9feb8864a492ac441
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options sameorigin
X-Xss-Protection 1; mode=block

Request headers

Referer
https://www.classcentral.com/report/free-certificates/
Origin
https://www.classcentral.com
Accept-Language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
x-content-type-options
nosniff
last-modified
Thu, 15 Oct 2020 04:50:23 GMT
server
nginx
etag
"5f87d50f-1e44"
x-frame-options
sameorigin
content-type
font/woff2
cache-control
max-age=31536000
strict-transport-security
max-age=31536000; includeSubDomains; preload;
accept-ranges
bytes
content-length
7748
x-xss-protection
1; mode=block
expires
Fri, 20 Jan 2023 15:58:07 GMT
free-certificates.png
www.classcentral.com/report/wp-content/uploads/2021/03/
54 KB
55 KB
Image
General
Full URL
https://www.classcentral.com/report/wp-content/uploads/2021/03/free-certificates.png
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
8706d04188ac9660335b69f4d2bd317ddf84240783a8793969c81b9ee887c728
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
x-content-type-options
nosniff
last-modified
Tue, 02 Mar 2021 08:11:25 GMT
server
nginx
etag
"603df32d-d8dc"
x-frame-options
SAMEORIGIN, sameorigin
content-type
image/png
strict-transport-security
max-age=31536000; includeSubDomains; preload;
accept-ranges
bytes
content-length
55516
x-xss-protection
1; mode=block
Google-Analytics-for-Beginners.jpg
www.classcentral.com/report/wp-content/uploads/2021/02/
48 KB
48 KB
Image
General
Full URL
https://www.classcentral.com/report/wp-content/uploads/2021/02/Google-Analytics-for-Beginners.jpg
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
76ed41e076256e8717416a218c8ea16a7f928c083cbcdc70eef045522f33ed62
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
x-content-type-options
nosniff
last-modified
Wed, 10 Feb 2021 10:45:42 GMT
server
nginx
etag
"6023b956-bf3c"
x-frame-options
SAMEORIGIN, sameorigin
content-type
image/jpeg
strict-transport-security
max-age=31536000; includeSubDomains; preload;
accept-ranges
bytes
content-length
48956
x-xss-protection
1; mode=block
cs50-cert.png
www.classcentral.com/report/wp-content/uploads/2020/01/
46 KB
47 KB
Image
General
Full URL
https://www.classcentral.com/report/wp-content/uploads/2020/01/cs50-cert.png
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/report/free-certificates/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
34.68.4.21 Council Bluffs, United States, ASN15169 (GOOGLE, US),
Reverse DNS
21.4.68.34.bc.googleusercontent.com
Software
nginx /
Resource Hash
f0d286de188e32fdbdeb2cbe557c4cc81f657d5616f268f143e1ecf9bd776ad7
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN, sameorigin
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/report/free-certificates/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:07 GMT
x-content-type-options
nosniff
last-modified
Mon, 13 Jan 2020 21:31:16 GMT
server
nginx
etag
"5e1ce1a4-b982"
x-frame-options
SAMEORIGIN, sameorigin
content-type
image/png
strict-transport-security
max-age=31536000; includeSubDomains; preload;
accept-ranges
bytes
content-length
47490
x-xss-protection
1; mode=block
ub0tz0cmeh
us-central1-class-central-prod.cloudfunctions.net/
0
0
Preflight
General
Full URL
https://us-central1-class-central-prod.cloudfunctions.net/ub0tz0cmeh
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2001:4860:4802:36::36 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Google Frontend / Express
Resource Hash

Request headers

Accept
*/*
Access-Control-Request-Method
POST
Access-Control-Request-Headers
content-type
Origin
https://www.classcentral.com
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Sec-Fetch-Mode
cors

Response headers

access-control-allow-headers
content-type
access-control-allow-methods
GET,HEAD,PUT,PATCH,POST,DELETE
access-control-allow-origin
https://www.classcentral.com
function-execution-id
okfl9ceohxlg
vary
Origin, Access-Control-Request-Headers
x-powered-by
Express
x-cloud-trace-context
91e98ae2cb6040317e60c1ef6f3a50b3
date
Thu, 20 Jan 2022 15:58:07 GMT
content-type
text/html
server
Google Frontend
content-length
0
alt-svc
h3=":443"; ma=2592000,h3-29=":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"
ub0tz0cmeh
us-central1-class-central-prod.cloudfunctions.net/
0
15 B
XHR
General
Full URL
https://us-central1-class-central-prod.cloudfunctions.net/ub0tz0cmeh
Requested by
Host: www.classcentral.com
URL: https://www.classcentral.com/analytics.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
2001:4860:4802:36::36 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Google Frontend / Express
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Accept
application/json, text/plain, */*
Referer
https://www.classcentral.com/
Accept-Language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Content-Type
application/json;charset=UTF-8

Response headers

date
Thu, 20 Jan 2022 15:58:08 GMT
server
Google Frontend
x-powered-by
Express
vary
Origin
content-type
text/html
access-control-allow-origin
https://www.classcentral.com
x-cloud-trace-context
189ad67b8f50239ecc2485fae2122e77
function-execution-id
qon8i05ozbyf
alt-svc
h3=":443"; ma=2592000,h3-29=":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
0
truncated
/
922 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
20eaf5f1b1c8b4213501646ae49902c4963261f83df9661ff80b87c7c7e844d3

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

Content-Type
image/svg+xml;charset=utf-8
truncated
/
4 KB
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
7899fb7ddd5e43b1de9f891daa0691ea7e681694efb35a71adcabb906543a99e

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

Content-Type
image/svg+xml;charset=utf-8
truncated
/
907 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
ba9f492891a274419b2ab130b500e068209c5f2f77d9b65a02f66419a72d15b9

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

Content-Type
image/svg+xml;charset=utf-8
truncated
/
472 B
0
Image
General
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
95254b15453984ad05626e4fb73998f771b744be7e9cfee85d336ebb6dacef5c

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

Content-Type
image/svg+xml;charset=utf-8
collect
www.google-analytics.com/j/
2 B
210 B
XHR
General
Full URL
https://www.google-analytics.com/j/collect?v=1&_v=j96&aip=1&a=1342898207&t=pageview&_s=1&dl=https%3A%2F%2Fwww.classcentral.com%2Freport%2Ffree-certificates%2F&ul=en-us&de=UTF-8&dt=%5B2022%5D%20Massive%20List%20of%20Thousands%20of%20Free%20Certificates%20and%20Badges%20%E2%80%94%20Class%20Central&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=YEBAAEABAAAAAC~&jid=1715593125&gjid=1709701031&cid=1069676877.1642694288&tid=UA-27280844-1&_gid=1611669698.1642694288&_r=1&_slc=1&z=1150188920
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
2a00:1450:4001:802::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
a048e640908046be06e00eab37742b5d5ff80964af58cfd22f7cb2de4dfe375f
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://www.classcentral.com/
Accept-Language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
date
Thu, 20 Jan 2022 15:58:07 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://www.classcentral.com
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":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
2
expires
Fri, 01 Jan 1990 00:00:00 GMT
in.php
in.getclicky.com/
231 B
474 B
Script
General
Full URL
https://in.getclicky.com/in.php?site_id=100717247&type=pageview&href=%2Freport%2Ffree-certificates%2F&title=%5B2022%5D%20Massive%20List%20of%20Thousands%20of%20Free%20Certificates%20and%20Badges%20%E2%80%94%20Class%20Central&res=1600x1200&lang=en&jsuid=2259986615&mime=js&x=0.5796791302460336
Requested by
Host: static.getclicky.com
URL: https://static.getclicky.com/js
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
198.145.13.14 Portland, United States, ASN2044 (DF-PTL01, US),
Reverse DNS
getclicky.com
Software
nginx /
Resource Hash
0028003bf756aeeb6ad000bbf10f3ec41480ab7ff139fa02d6303e8788737c54

Request headers

Accept-Language
de-DE,de;q=0.9
Referer
https://www.classcentral.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36

Response headers

date
Thu, 20 Jan 2022 15:58:08 GMT
content-encoding
gzip
server
nginx
vary
Accept-Encoding, Accept-Encoding
content-type
text/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
no-cache, must-revalidate, post-check=0, pre-check=0
expires
Mon, 26 Jul 1997 05:00:00 GMT

Verdicts & Comments Add Verdict or Comment

26 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.

undefined| $ function| jQuery function| flatpickr function| clicky_gc string| username_check undefined| clicky_custom_session object| clicky_site_ids string| GoogleAnalyticsObject function| ga function| Cookies function| Analytics object| CC boolean| TOUCHSCREEN object| pp_ajax_form object| clicky_obj object| clicky object| clicky_custom undefined| test object| _genericStats object| _genericStatsCustom object| google_tag_data object| gaplugins object| gaGlobal object| gaData function| ppFormRecaptchaLoadCallback object| addComment

8 Cookies

Domain/Path Name / Value
www.classcentral.com/ Name: permanentId
Value: 1d189dd1-201c-456c-ae0d-792cb5edc593
.classcentral.com/ Name: _ga
Value: GA1.2.1069676877.1642694288
.classcentral.com/ Name: _gid
Value: GA1.2.1611669698.1642694288
.classcentral.com/ Name: _gat
Value: 1
.classcentral.com/ Name: _first_pageview
Value: 1
.classcentral.com/ Name: _jsuid
Value: 2259986615
in.getclicky.com/ Name: cluid
Value: 2259986615
.classcentral.com/ Name: heatmaps_g2g_100717247
Value: yes

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
Strict-Transport-Security max-age=31536000; includeSubDomains; preload;
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN sameorigin
X-Xss-Protection 1; mode=block

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.

ccweb.imgix.net
in.getclicky.com
static.getclicky.com
us-central1-class-central-prod.cloudfunctions.net
www.classcentral.com
www.google-analytics.com
198.145.13.14
2001:4860:4802:36::36
2606:4700::6810:dd1d
2a00:1450:4001:802::200e
2a04:4e42:1b::720
34.68.4.21
0028003bf756aeeb6ad000bbf10f3ec41480ab7ff139fa02d6303e8788737c54
00501810e93307a8882a74d864e7547fd1458deea539361dc1124ac133799a4b
029e0a2e809fd6b5dbe76abe8b7a74936be306c9a8c27c814c4d44aa54623300
044efea78208376302aad3808aaabdf3c2f7bdd80ba9d55c9e0e4d3baa7a3908
085a7cf490eaf1a212d47c7de0a7db68c0f18b472fcfc2d285948f480d8d5e96
143ce443c390db3b8598f951de20bd04623859a581a15b8cde43ebfa1f8ec103
1659fe4bf7d80c9d59d5ece5a27d816f39ab131426207914ee23e41fb6bca7ea
18e94a52f722f8ddabdca4c2131101f8c5ac02cdede6fec6c813098d9104b0ed
1b172ee29e692f06715370ec250e81dbfcedc72f1200f0082282bacb2413b205
20eaf5f1b1c8b4213501646ae49902c4963261f83df9661ff80b87c7c7e844d3
222db77e6870a1844aeae613820aef9c670cdc3c589f6600bb37d659a040c884
23fbd2c2f1d2458ad6617c2b54707c76d0f607a68a562a7b19ae014fa181d8bb
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