URL: https://www.britannica.com/science/hydrogen-sulfide
Submission: On April 14 via api from US — Scanned from DE

Summary

This website contacted 34 IPs in 6 countries across 28 domains to perform 114 HTTP transactions. The main IP is 104.18.4.110, located in and belongs to CLOUDFLARENET, US. The main domain is www.britannica.com. The Cisco Umbrella rank of the primary domain is 17395.
TLS certificate: Issued by Cloudflare Inc ECC CA-3 on March 13th 2022. Valid for: a year.
This is the only time www.britannica.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
4 104.18.4.110 13335 (CLOUDFLAR...)
1 2a00:1450:400... 15169 (GOOGLE)
13 108.157.4.109 16509 (AMAZON-02)
1 2a00:1450:400... 15169 (GOOGLE)
1 2600:9000:231... ()
3 2a00:1450:400... 15169 (GOOGLE)
1 2606:4700:440... ()
5 18.66.248.61 16509 (AMAZON-02)
6 34.96.102.137 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
1 40.118.73.208 8075 (MICROSOFT...)
2 18.66.248.71 16509 (AMAZON-02)
1 199.232.188.157 54113 (FASTLY)
2 2a03:2880:f01... 32934 (FACEBOOK)
17 65.9.108.45 16509 (AMAZON-02)
1 2600:9000:215... ()
1 23.20.129.87 14618 (AMAZON-AES)
3 2600:9000:230... ()
6 108.138.3.177 16509 (AMAZON-02)
3 142.250.186.162 15169 (GOOGLE)
5 2a00:1450:400... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
1 104.244.42.3 13414 (TWITTER)
1 104.244.42.5 13414 (TWITTER)
2 3.214.95.187 14618 (AMAZON-AES)
2 2600:9000:224... ()
1 2600:9000:231... ()
2 151.101.1.194 54113 (FASTLY)
2 2a03:2880:f12... 32934 (FACEBOOK)
1 46.105.202.126 16276 (OVH)
1 2a00:1450:400... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
1 2a00:1450:400... 15169 (GOOGLE)
20 108.157.4.125 16509 (AMAZON-02)
114 34
Apex Domain
Subdomains
Transfer
34 britannica.com
www.britannica.com — Cisco Umbrella Rank: 17395
cdn.britannica.com — Cisco Umbrella Rank: 11387
bc-script.britannica.com — Cisco Umbrella Rank: 22133
684 KB
25 privacymanager.io
gdpr-wrapper.privacymanager.io — Cisco Umbrella Rank: 14556
gdpr.privacymanager.io — Cisco Umbrella Rank: 16606
cmp-consent-tool.privacymanager.io — Cisco Umbrella Rank: 32018
670 KB
6 amazon-adsystem.com
c.amazon-adsystem.com — Cisco Umbrella Rank: 302
42 KB
6 visualwebsiteoptimizer.com
dev.visualwebsiteoptimizer.com — Cisco Umbrella Rank: 4937
66 KB
5 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 37
21 KB
5 adthrive.com
ads.adthrive.com — Cisco Umbrella Rank: 5304
256 KB
4 doubleclick.net
securepubads.g.doubleclick.net — Cisco Umbrella Rank: 193
stats.g.doubleclick.net — Cisco Umbrella Rank: 95
152 KB
3 googletagmanager.com
www.googletagmanager.com — Cisco Umbrella Rank: 71
161 KB
2 facebook.com
www.facebook.com — Cisco Umbrella Rank: 100
430 B
2 fastly.net
confiant-integrations.global.ssl.fastly.net — Cisco Umbrella Rank: 1576
95 KB
2 blueconic.net
encyclopediabritannica.blueconic.net — Cisco Umbrella Rank: 27091
2 KB
2 facebook.net
connect.facebook.net — Cisco Umbrella Rank: 138
114 KB
2 surveymonkey.com
widget.surveymonkey.com — Cisco Umbrella Rank: 19534
18 KB
2 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 46
ajax.googleapis.com — Cisco Umbrella Rank: 282
278 KB
1 google.de
www.google.de — Cisco Umbrella Rank: 5383
501 B
1 google.com
www.google.com — Cisco Umbrella Rank: 4
501 B
1 id5-sync.com
cdn.id5-sync.com — Cisco Umbrella Rank: 1681
11 KB
1 jwplayer.com
cdn.jwplayer.com — Cisco Umbrella Rank: 2361
5 KB
1 t.co
t.co — Cisco Umbrella Rank: 476
338 B
1 twitter.com
analytics.twitter.com — Cisco Umbrella Rank: 524
1 eb.com
webstats.eb.com — Cisco Umbrella Rank: 21591
303 B
1 trackonomics.net
cdn-magiclinks.trackonomics.net — Cisco Umbrella Rank: 6030
20 KB
1 ads-twitter.com
static.ads-twitter.com — Cisco Umbrella Rank: 619
6 KB
1 windows.net
insitez.blob.core.windows.net — Cisco Umbrella Rank: 19725
489 B
1 gstatic.com
fonts.gstatic.com
122 KB
1 cloudflareinsights.com
static.cloudflareinsights.com — Cisco Umbrella Rank: 1199
5 KB
1 jwplatform.com
content.jwplatform.com — Cisco Umbrella Rank: 3264
43 KB
1 googleoptimize.com
www.googleoptimize.com — Cisco Umbrella Rank: 1430
56 KB
114 28
Domain Requested by
20 cmp-consent-tool.privacymanager.io gdpr.privacymanager.io
cmp-consent-tool.privacymanager.io
17 bc-script.britannica.com www.googletagmanager.com
bc-script.britannica.com
www.britannica.com
13 cdn.britannica.com www.britannica.com
cdn.britannica.com
6 c.amazon-adsystem.com ads.adthrive.com
c.amazon-adsystem.com
6 dev.visualwebsiteoptimizer.com www.britannica.com
dev.visualwebsiteoptimizer.com
5 www.google-analytics.com www.googletagmanager.com
www.google-analytics.com
5 ads.adthrive.com www.britannica.com
ads.adthrive.com
4 www.britannica.com cdn.britannica.com
static.cloudflareinsights.com
3 securepubads.g.doubleclick.net ads.adthrive.com
securepubads.g.doubleclick.net
3 gdpr-wrapper.privacymanager.io ads.adthrive.com
gdpr.privacymanager.io
3 www.googletagmanager.com www.britannica.com
www.googletagmanager.com
2 www.facebook.com www.britannica.com
2 confiant-integrations.global.ssl.fastly.net ads.adthrive.com
confiant-integrations.global.ssl.fastly.net
2 gdpr.privacymanager.io gdpr-wrapper.privacymanager.io
cmp-consent-tool.privacymanager.io
2 encyclopediabritannica.blueconic.net bc-script.britannica.com
2 connect.facebook.net www.britannica.com
connect.facebook.net
2 widget.surveymonkey.com www.britannica.com
widget.surveymonkey.com
1 www.google.de www.britannica.com
1 www.google.com www.britannica.com
1 stats.g.doubleclick.net www.google-analytics.com
1 cdn.id5-sync.com www.britannica.com
1 cdn.jwplayer.com ads.adthrive.com
1 t.co www.britannica.com
1 analytics.twitter.com static.ads-twitter.com
1 ajax.googleapis.com widget.surveymonkey.com
1 webstats.eb.com www.britannica.com
1 cdn-magiclinks.trackonomics.net www.britannica.com
1 static.ads-twitter.com www.britannica.com
1 insitez.blob.core.windows.net www.britannica.com
1 fonts.gstatic.com fonts.googleapis.com
1 static.cloudflareinsights.com www.britannica.com
1 content.jwplatform.com www.britannica.com
1 www.googleoptimize.com www.britannica.com
1 fonts.googleapis.com www.britannica.com
114 34
Subject Issuer Validity Valid
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3
2022-03-13 -
2023-03-13
a year crt.sh
upload.video.google.com
GTS CA 1C3
2022-03-28 -
2022-06-20
3 months crt.sh
cdn.britannica.com
Amazon
2021-10-13 -
2022-11-10
a year crt.sh
*.google-analytics.com
GTS CA 1C3
2022-03-28 -
2022-06-20
3 months crt.sh
jwplayer.com
Amazon
2021-12-29 -
2023-01-25
a year crt.sh
*.adthrive.com
Amazon
2021-07-05 -
2022-08-03
a year crt.sh
*.visualwebsiteoptimizer.com
Starfield Secure Certificate Authority - G2
2020-06-19 -
2022-07-06
2 years crt.sh
*.gstatic.com
GTS CA 1C3
2022-03-28 -
2022-06-20
3 months crt.sh
*.blob.core.windows.net
Microsoft RSA TLS CA 02
2022-03-16 -
2023-03-16
a year crt.sh
surveymonkey.com
Amazon
2021-04-22 -
2022-05-21
a year crt.sh
ads-twitter.com
DigiCert TLS RSA SHA256 2020 CA1
2021-07-21 -
2022-07-26
a year crt.sh
*.facebook.com
DigiCert SHA2 High Assurance Server CA
2022-01-22 -
2022-04-22
3 months crt.sh
bc-script.britannica.com
Amazon
2021-06-11 -
2022-07-10
a year crt.sh
*.trackonomics.net
Go Daddy Secure Certificate Authority - G2
2021-12-22 -
2023-01-23
a year crt.sh
*.eb.com
Amazon
2021-11-09 -
2022-12-07
a year crt.sh
*.privacymanager.io
Amazon
2021-09-25 -
2022-10-24
a year crt.sh
c.amazon-adsystem.com
Amazon
2021-07-06 -
2022-06-27
a year crt.sh
*.g.doubleclick.net
GTS CA 1C3
2022-03-21 -
2022-06-13
3 months crt.sh
*.twitter.com
DigiCert TLS Hybrid ECC SHA384 2020 CA1
2022-03-07 -
2023-03-06
a year crt.sh
t.co
DigiCert TLS Hybrid ECC SHA384 2020 CA1
2022-03-07 -
2023-03-06
a year crt.sh
*.blueconic.net
Amazon
2021-08-07 -
2022-09-05
a year crt.sh
*.freetls.fastly.net
GlobalSign Atlas R3 DV TLS CA 2020
2021-04-27 -
2022-05-29
a year crt.sh
cdn.id5-sync.com
R3
2022-04-13 -
2022-07-12
3 months crt.sh
www.google.com
GTS CA 1C3
2022-03-28 -
2022-06-20
3 months crt.sh
www.google.de
GTS CA 1C3
2022-03-21 -
2022-06-13
3 months crt.sh

This page contains 4 frames:

Primary Page: https://www.britannica.com/science/hydrogen-sulfide
Frame ID: 0FA133764ACB4E22D847B0A86117D037
Requests: 89 HTTP requests in this frame

Frame: https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.js
Frame ID: C871EE0AB8073478F2174F91577F4459
Requests: 2 HTTP requests in this frame

Frame: https://cmp-consent-tool.privacymanager.io/latest/index.html
Frame ID: A434768EBC5E7981F3B819946928F7E4
Requests: 21 HTTP requests in this frame

Frame: https://www.facebook.com/tr/
Frame ID: B284D7B43C6291DC3C741D98FE4BAAC0
Requests: 1 HTTP requests in this frame

Screenshot

Page Title

hydrogen sulfide | chemical compound | Britannica

Detected technologies

Overall confidence: 100%
Detected patterns
  • static\.cloudflareinsights\.com/beacon(?:\.min)?\.js

Overall confidence: 100%
Detected patterns
  • //connect\.facebook\.([a-z]+)/[^/]*/[a-z]*\.js

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

Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]+fonts\.(?:googleapis|google)\.com

Overall confidence: 100%
Detected patterns
  • googleoptimize\.com/optimize\.js

Overall confidence: 100%
Detected patterns
  • googletagmanager\.com/gtm\.js
  • googletagmanager\.com/gtag/js

Overall confidence: 100%
Detected patterns
  • dev\.visualwebsiteoptimizer\.com/?([\d.]+)

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

Page Statistics

114
Requests

100 %
HTTPS

50 %
IPv6

28
Domains

34
Subdomains

34
IPs

6
Countries

2828 kB
Transfer

8681 kB
Size

28
Cookies

Redirected requests

There were HTTP redirect chains for the following requests:

114 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request hydrogen-sulfide
www.britannica.com/science/
63 KB
19 KB
Document
General
Full URL
https://www.britannica.com/science/hydrogen-sulfide
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.18.4.110 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
54497543b67c5e05dbc78760d360a28a0c15bd45530241d896cf6462c67efcea
Security Headers
Name Value
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/100.0.4896.75 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray
6fbfcb81f8499b80-FRA
content-encoding
gzip
content-language
de-DE
content-type
text/html;charset=UTF-8
date
Thu, 14 Apr 2022 22:14:32 GMT
expect-ct
max-age=604800
nel
{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=S1fSSrBHVRrY6iy4cVrtLOmeUwyPRj9I3SYZ%2Fh2TescuAWPs8lyouuGbSqXmdOwOGI6kv13HxSSg4meGLRB156F305JkxrT%2BgCjWI150G9xoHYPjDHMlXwjgLe%2FHYyxWVDAN0Q%3D%3D"}],"group":"cf-nel","max_age":604800}
server
cloudflare
vary
Accept-Encoding,User-Agent
x-iset
blue
x-permitted-cross-domain-policies
master-only
x-tserver
ip-10-145-21-104/127.0.1.1
x-wserver
127.0.0.1
x-xss-protection
1; mode=block
icon
fonts.googleapis.com/
569 B
868 B
Stylesheet
General
Full URL
https://fonts.googleapis.com/icon?family=Material+Icons
Requested by
Host: www.britannica.com
URL: https://www.britannica.com/science/hydrogen-sulfide
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:811::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
e0c254788ad36f95d44c1786c590263e89ea3976fcbc9ae7c82c52493b254391
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.britannica.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36

Response headers

strict-transport-security
max-age=31536000
content-encoding
gzip
x-content-type-options
nosniff
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"
x-xss-protection
0
last-modified
Thu, 14 Apr 2022 22:14:32 GMT
server
ESF
cross-origin-opener-policy
same-origin-allow-popups
date
Thu, 14 Apr 2022 22:14:32 GMT
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
expires
Thu, 14 Apr 2022 22:14:32 GMT
vendor-bundle.css
cdn.britannica.com/mendel-resources/3-63/dist/
193 KB
20 KB
Stylesheet
General
Full URL
https://cdn.britannica.com/mendel-resources/3-63/dist/vendor-bundle.css?v=3.63.1
Requested by
Host: www.britannica.com
URL: https://www.britannica.com/science/hydrogen-sulfide
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
108.157.4.109 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-108-157-4-109.dus51.r.cloudfront.net
Software
AmazonS3 /
Resource Hash
08427f29dcd0f2cfc0aa5f04deeed050f1c8dae45bbaeba3d5a164d556851def

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.britannica.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36

Response headers

date
Thu, 14 Apr 2022 15:02:00 GMT
content-encoding
br
last-modified
Wed, 13 Apr 2022 19:16:15 GMT
server
AmazonS3
age
25953
etag
W/"4598425fd21bbd698233d271bac39e5e"
vary
Accept-Encoding
x-cache
Hit from cloudfront
content-type
text/css
via
1.1 656be55f933cf25841b96f9c9070a178.cloudfront.net (CloudFront)
x-amz-cf-pop
DUS51-P2
x-amz-cf-id
-zrC9rJodKjf5eIeKFx2Pw1Zw09tr219JMngELozdwI2m6ss_lCRDA==
mendel-css.css
cdn.britannica.com/mendel-resources/3-63/dist/
108 KB
22 KB
Stylesheet
General
Full URL
https://cdn.britannica.com/mendel-resources/3-63/dist/mendel-css.css?v=3.63.1
Requested by
Host: www.britannica.com
URL: https://www.britannica.com/science/hydrogen-sulfide
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
108.157.4.109 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-108-157-4-109.dus51.r.cloudfront.net
Software
AmazonS3 /
Resource Hash
4c2d4ddb62d7af2afafaea3e18c00c487dcaaec068d559ae22338d5b799b87b4

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.britannica.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36

Response headers

date
Thu, 14 Apr 2022 15:02:00 GMT
content-encoding
br
last-modified
Wed, 13 Apr 2022 19:16:14 GMT
server
AmazonS3
age
25953
etag
W/"0ff63376cb5561b285aa0754cc09a163"
vary
Accept-Encoding
x-cache
Hit from cloudfront
content-type
text/css
via
1.1 656be55f933cf25841b96f9c9070a178.cloudfront.net (CloudFront)
x-amz-cf-pop
DUS51-P2
x-amz-cf-id
FlT-o42lD3kX3Sgly7NX109EO3iQ43NfYYlEgDCAHjyyNWLvIQV3zg==
topic-page.css
cdn.britannica.com/mendel-resources/3-63/dist/
2 KB
1 KB
Stylesheet
General
Full URL
https://cdn.britannica.com/mendel-resources/3-63/dist/topic-page.css?v=3.63.1
Requested by
Host: www.britannica.com
URL: https://www.britannica.com/science/hydrogen-sulfide
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
108.157.4.109 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-108-157-4-109.dus51.r.cloudfront.net
Software
AmazonS3 /
Resource Hash
eecfabefcfd6a61bc60c5b7cc15f8c0055028b5eacfa278b221b748dd0a5917e

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.britannica.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36

Response headers

date
Thu, 14 Apr 2022 15:02:00 GMT
content-encoding
br
last-modified
Wed, 13 Apr 2022 19:16:15 GMT
server
AmazonS3
age
25953
etag
W/"b34af0c1a0676bb7bdce15214dedec9f"
vary
Accept-Encoding
x-cache
Hit from cloudfront
content-type
text/css
via
1.1 656be55f933cf25841b96f9c9070a178.cloudfront.net (CloudFront)
x-amz-cf-pop
DUS51-P2
x-amz-cf-id
XJS5gL-o9pXmdz8GomAvihPcqw6RziVW_cskbSrA0404E8e7JuWTdQ==
optimize.js
www.googleoptimize.com/
344 KB
56 KB
Script
General
Full URL
https://www.googleoptimize.com/optimize.js?id=OPT-TD96PKG
Requested by
Host: www.britannica.com
URL: https://www.britannica.com/science/hydrogen-sulfide
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:831::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Google Tag Manager /
Resource Hash
48c214110e10bf920865b7a70b89ef3212bb6fb587052220c163749199fb6cb6
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://www.britannica.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36

Response headers

date
Thu, 14 Apr 2022 22:14:32 GMT
content-encoding
br
server
Google Tag Manager
access-control-allow-headers
Cache-Control
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
private, max-age=900
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
strict-transport-security
max-age=31536000; includeSubDomains
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
57066
x-xss-protection
0
expires
Thu, 14 Apr 2022 22:14:32 GMT
jquery-3.5.0.min.js
cdn.britannica.com/mendel-resources/3-63/js/libs/
87 KB
30 KB
Script
General
Full URL
https://cdn.britannica.com/mendel-resources/3-63/js/libs/jquery-3.5.0.min.js?v=3.63.1
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x-amz-cf-id
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expires
Thu, 01 Jan 1970 00:00:00 GMT
cs
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Full URL
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Requested by
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URL: https://bc-script.britannica.com/script.js
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
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Reverse DNS
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- /
Resource Hash
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Request headers

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Response headers

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content-encoding
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nosniff
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expires
Thu, 01 Jan 1970 00:00:00 GMT
826
bc-script.britannica.com/DG/DEFAULT/rest/rpc/
8 KB
3 KB
XHR
General
Full URL
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Host: bc-script.britannica.com
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Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
65.9.108.45 , United States, ASN16509 (AMAZON-02, US),
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Response headers

date
Thu, 14 Apr 2022 22:14:36 GMT
content-encoding
gzip
x-content-type-options
nosniff
x-permitted-cross-domain-policies
master-only
x-amz-cf-pop
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1; mode=block
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3 KB
XHR
General
Full URL
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Requested by
Host: bc-script.britannica.com
URL: https://bc-script.britannica.com/script.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
65.9.108.45 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
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Software
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Request headers

Referer
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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/100.0.4896.75 Safari/537.36
Content-Type
text/plain

Response headers

date
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content-encoding
gzip
x-content-type-options
nosniff
x-permitted-cross-domain-policies
master-only
x-amz-cf-pop
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Miss from cloudfront
p3p
policyref="", CP="DSP"
content-length
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x-xss-protection
1; mode=block
pragma
no-cache
access-control-allow-origin
https://www.britannica.com
server
-
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application/json; charset=utf-8
via
1.1 146689a985b87416a79f02cfe6717ffe.cloudfront.net (CloudFront)
cache-control
no-cache, no-store, no-transform, must-revalidate, private
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noindex, nofollow
x-amz-cf-id
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expires
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1 KB
XHR
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Full URL
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Requested by
Host: bc-script.britannica.com
URL: https://bc-script.britannica.com/script.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
65.9.108.45 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
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Software
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Request headers

Referer
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accept-language
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.75 Safari/537.36
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Response headers

date
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content-encoding
gzip
x-content-type-options
nosniff
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master-only
x-amz-cf-pop
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p3p
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166
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1; mode=block
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no-cache
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https://www.britannica.com
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188 B
1 KB
XHR
General
Full URL
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Requested by
Host: bc-script.britannica.com
URL: https://bc-script.britannica.com/script.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
65.9.108.45 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
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Software
- /
Resource Hash
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Security Headers
Name Value
X-Content-Type-Options nosniff
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Request headers

Referer
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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/100.0.4896.75 Safari/537.36
Content-Type
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Response headers

date
Thu, 14 Apr 2022 22:14:36 GMT
content-encoding
gzip
x-content-type-options
nosniff
x-permitted-cross-domain-policies
master-only
x-amz-cf-pop
TLV50-C2
x-cache
Miss from cloudfront
p3p
policyref="", CP="DSP"
content-length
166
x-xss-protection
1; mode=block
pragma
no-cache
access-control-allow-origin
https://www.britannica.com
server
-
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application/json; charset=utf-8
via
1.1 146689a985b87416a79f02cfe6717ffe.cloudfront.net (CloudFront)
cache-control
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expires
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826
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188 B
1 KB
XHR
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Full URL
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Requested by
Host: bc-script.britannica.com
URL: https://bc-script.britannica.com/script.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
65.9.108.45 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
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Software
- /
Resource Hash
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Security Headers
Name Value
X-Content-Type-Options nosniff
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Request headers

Referer
https://www.britannica.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/100.0.4896.75 Safari/537.36
Content-Type
text/plain

Response headers

date
Thu, 14 Apr 2022 22:14:36 GMT
content-encoding
gzip
x-content-type-options
nosniff
x-permitted-cross-domain-policies
master-only
x-amz-cf-pop
TLV50-C2
x-cache
Miss from cloudfront
p3p
policyref="", CP="DSP"
content-length
166
x-xss-protection
1; mode=block
pragma
no-cache
access-control-allow-origin
https://www.britannica.com
server
-
content-type
application/json; charset=utf-8
via
1.1 146689a985b87416a79f02cfe6717ffe.cloudfront.net (CloudFront)
cache-control
no-cache, no-store, no-transform, must-revalidate, private
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x-amz-cf-id
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375 B
1 KB
XHR
General
Full URL
https://bc-script.britannica.com/DG/DEFAULT/rest/rpc/826?referer=https%3A%2F%2Fwww.britannica.com%2Fscience%2Fhydrogen-sulfide&bcsessionid=b9a81172-15d2-4e5f-9e20-073b87787496&bctempid=&overruleReferrer=&time=2022-04-14T22%3A14%3A37%2B00%3A00&ts=1649974477645
Requested by
Host: bc-script.britannica.com
URL: https://bc-script.britannica.com/script.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
65.9.108.45 , United States, ASN16509 (AMAZON-02, US),
Reverse DNS
server-65-9-108-45.tlv50.r.cloudfront.net
Software
- /
Resource Hash
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Security Headers
Name Value
X-Content-Type-Options nosniff
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Request headers

Referer
https://www.britannica.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/100.0.4896.75 Safari/537.36
Content-Type
text/plain

Response headers

date
Thu, 14 Apr 2022 22:14:36 GMT
content-encoding
gzip
x-content-type-options
nosniff
x-permitted-cross-domain-policies
master-only
x-amz-cf-pop
TLV50-C2
x-cache
Miss from cloudfront
p3p
policyref="", CP="DSP"
content-length
176
x-xss-protection
1; mode=block
pragma
no-cache
access-control-allow-origin
https://www.britannica.com
server
-
content-type
application/json; charset=utf-8
via
1.1 146689a985b87416a79f02cfe6717ffe.cloudfront.net (CloudFront)
cache-control
no-cache, no-store, no-transform, must-revalidate, private
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noindex, nofollow
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collect
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Ping
General
Full URL
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Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=G-TE6YF92Y0D&l=dataLayer&cx=c
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H3
Security
QUIC, , AES_128_GCM
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Request headers

accept-language
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Referer
https://www.britannica.com/
User-Agent
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Response headers

pragma
no-cache
date
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server
Golfe2
content-type
text/plain
access-control-allow-origin
https://www.britannica.com
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
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expires
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Verdicts & Comments Add Verdict or Comment

149 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| 1 object| 2 object| 3 function| structuredClone object| oncontextlost object| oncontextrestored function| getScreenDetails object| $UI object| Constants string| CDN string| CAM_LOGIN_URL string| CAM_SIGN_UP_URL object| Mendel object| adthrive object| dataLayer number| settings_timer number| _vwo_settings_timer object| _vwo_code object| IzWidget object| SMCX function| $ function| jQuery object| jwDefaults object| webpackChunkjwplayer function| jwplayer function| gaPageLoad object| EBStat number| _vwo_acc_id object| vwoCode object| _vwo_style string| _vwo_css string| _vwo_cookieDomain string| _vwo_uuid string| _vis_opt_file number| _vwo_library_timer string| _vis_opt_lib undefined| b number| _vwo_j_e string| _vwo_mt string| _vwo_tm object| VWO object| vwo_iehack_queue object| _vwo_exp_ids object| _vwo_exp object| VWOOmni object| google_tag_manager object| __cfBeacon object| adthriveCLS function| twq function| fbq function| _fbq function| onYouTubeIframeAPIReady object| scrEm object| google_optimize boolean| pageReadyForStatsCalls function| safeFirstPerformStatsWrite function| performStatsWrite function| writeStat function| buildStatUri function| buildStatQuery function| getHitCount function| setSessionIdCookie function| cookie function| getAccountId function| getSessionId function| performStatsWriteWhenReady function| vwo_$ string| _vwo_server_url object| _vis_opt_queue object| _vis_opt_check_segment object| _vwo_evq function| _vwo_ev boolean| DISABLE_NATIVE_CONSTANTS object| _vwo_t object| _vwo_editorOperationTracker function| _vwo_handleMutations object| _vwo_api_section_callback object| _vis_opt_comb_name function| _vwo_s object| _vwo_campaignData function| _vis_opt_top_initialize function| _vis_opt_bottom_initialize function| _vis_opt_goal_conversion function| _vis_opt_revenue_conversion function| _vis_opt_pause function| _vis_opt_readCookie function| _vis_opt_createCookie function| _vis_opt_element_loaded function| _vis_opt_GA_track function| _vis_opt_register_conversion function| _vis_opt_get_campaign_xPath number| _vis_opt_experiment_id boolean| _vwo_settings_timed_out object| apstag object| googletag object| pbjs object| google_tag_data object| gaGlobal string| GoogleAnalyticsObject function| ga object| webpackChunkmendel number| 2f1acc6c3a606b082e5eef5e54414ffb undefined| _vis_opt_url object| twttr object| trx object| blueConicPreListeners function| BCClass object| blueConicClient boolean| apstagLOADED object| ggeac object| google_js_reporting_queue object| cmp object| cmpConfiguration object| node function| __tcfapi object| gaplugins object| gaData object| _pbjsGlobals object| _comscore boolean| creativeVendorLibraryLoaded object| confiant object| bc_json827 undefined| google_measure_js_timing object| ID5 object| Mustache function| BlueConicMetaDataService function| RuleService object| _bcp function| BlueConicEngagement function| FormRuleService object| justDetectAdblock function| md5 object| bcConnectionUtil function| BlueConicDataLayerUtil object| JSONPath object| jsonpath object| checkSameSiteNoneSupport boolean| bcUrlListenerActive boolean| _bcEventsSubscribed string| _this_intIDs string| _page_title string| _this_href string| _this_referrer boolean| eventSubscribed boolean| gistListener object| _bcBreadCrumbs boolean| bcCookieEventsSubscribed object| bc_json828

28 Cookies

Domain/Path Name / Value
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Value: b9a81172-15d2-4e5f-9e20-073b87787496
encyclopediabritannica.blueconic.net/DG/DEFAULT Name: BCSessionID
Value: b9a81172-15d2-4e5f-9e20-073b87787496
www.britannica.com/science Name: sessionId
Value: 6DE78A10-AF6B-4CA8-874C-EF60CC0B3306
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Value: -6153848053609497538
.britannica.com/ Name: SessionAuth
Value: vx9s5n2evh0bGaknP4UqakeRzQ6gNi1xxrldSv1tLf/WumdWy5is4NeSJbphcCPa
.britannica.com/ Name: subreturn
Value: https%3A%2F%2Fwww.britannica.com%2Fscience%2Fhydrogen-sulfide
.britannica.com/ Name: webstats
Value: "referer_page=https%3A%2F%2Fwww.britannica.com%2Fscience%2Fhydrogen-sulfide"
.britannica.com/ Name: __mendel
Value: %7B%27pagesViewed%27%3A1%2C%27surveyShown%27%3Atrue%2C%27topicInitialSequence%27%3A1%7D
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Value: DCE1257428F864C4E3A3925B04DBC514D|e4aaefa32b9b4c4616619aba93376f0e
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Value: 1%7C
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Value: 1
.britannica.com/ Name: _ga_TE6YF92Y0D
Value: GS1.1.1649974474.1.1.1649974474.0
.britannica.com/ Name: CAMLoginRedirectUrl
Value: https://www.britannica.com/science/hydrogen-sulfide
www.britannica.com/ Name: last_visit_bc
Value: 1649974474770
www.britannica.com/ Name: JSESSIONID
Value: 5A2E227FEC5A84DF813E59D60E6D1E89
.t.co/ Name: muc_ads
Value: 7acd4166-f30e-4314-98c2-70f68645e36f
.britannica.com/ Name: _ga
Value: GA1.2.1638048180.1649974474
.britannica.com/ Name: _gid
Value: GA1.2.905107140.1649974475
.britannica.com/ Name: _fbp
Value: fb.1.1649974475057.2069172231
.facebook.com/ Name: fr
Value: 0hJnNXHG3VZG5rwpP..BiWJzJ...1.0.BiWJzJ.
.britannica.com/ Name: gdpr-auditId
Value: 2b0eeb5d9f654c0094f80da2ff29aab5
.britannica.com/ Name: _gat_gtag_UA_6636134_11
Value: 1
www.britannica.com/ Name: BCSessionID
Value: b9a81172-15d2-4e5f-9e20-073b87787496
encyclopediabritannica.blueconic.net/ Name: AWSALBCORS
Value: THqxrUiNyTagUVPp7xEPRVLBkV/+mTyGCAC00bxhWVzDw0SGn5RiimGnUruKDrFNAlzA31WdBjgpXZsT1WFEevmfDZpswoNunkKSDsn7BdVWhTSM5XAGgKjuXFq8
.britannica.com/ Name: eb_content_meter_views_remaining
Value: 5
.britannica.com/ Name: eb_content_meter
Value: true
bc-script.britannica.com/ Name: AWSALB
Value: RqtoTFdpAO67vPaBJsAKpD9dtogce2kR0LEn1MdInbe5TXySXVAKDNaFvFunrn8Dvd526bJnm+PyG1HGDc3zC8GFCAuocApRbBg/xIW3kFFI6qwuJRKPFtKvxoDH
bc-script.britannica.com/ Name: AWSALBCORS
Value: RqtoTFdpAO67vPaBJsAKpD9dtogce2kR0LEn1MdInbe5TXySXVAKDNaFvFunrn8Dvd526bJnm+PyG1HGDc3zC8GFCAuocApRbBg/xIW3kFFI6qwuJRKPFtKvxoDH

9 Console Messages

Source Level URL
Text
network error URL: https://analytics.twitter.com/i/adsct?type=javascript&version=2.0.4&p_id=Twitter&p_user_id=0&txn_id=o1kfk&events=%5B%5B%22pageview%22%2Cnull%5D%5D&tw_sale_amount=0&tw_order_quantity=0&tw_iframe_status=0&event_id=54f6da33-f2c8-4fd3-9a43-c44422384b06&tw_document_href=https%3A%2F%2Fwww.britannica.com%2Fscience%2Fhydrogen-sulfide&tpx_cb=twttr.conversion.loadPixels
Message:
Failed to load resource: the server responded with a status of 403 ()
other warning URL: https://cmp-consent-tool.privacymanager.io/latest/index.html#/notice?theme=blueLagoon&useSystemFonts=false&cmpType=tcf
Message:
A preload for 'https://cmp-consent-tool.privacymanager.io/latest/runtime.js' is found, but is not used because the request credentials mode does not match. Consider taking a look at crossorigin attribute.
other warning URL: https://cmp-consent-tool.privacymanager.io/latest/index.html#/notice?theme=blueLagoon&useSystemFonts=false&cmpType=tcf
Message:
A preload for 'https://cmp-consent-tool.privacymanager.io/latest/polyfills.js' is found, but is not used because the request credentials mode does not match. Consider taking a look at crossorigin attribute.
other warning URL: https://cmp-consent-tool.privacymanager.io/latest/index.html#/notice?theme=blueLagoon&useSystemFonts=false&cmpType=tcf
Message:
A preload for 'https://cmp-consent-tool.privacymanager.io/latest/vendor.js' is found, but is not used because the request credentials mode does not match. Consider taking a look at crossorigin attribute.
other warning URL: https://cmp-consent-tool.privacymanager.io/latest/index.html#/notice?theme=blueLagoon&useSystemFonts=false&cmpType=tcf
Message:
A preload for 'https://cmp-consent-tool.privacymanager.io/latest/main.js' is found, but is not used because the request credentials mode does not match. Consider taking a look at crossorigin attribute.
javascript warning URL: https://cmp-consent-tool.privacymanager.io/latest/#/notice?theme=blueLagoon&useSystemFonts=false&cmpType=tcf
Message:
The resource https://cmp-consent-tool.privacymanager.io/latest/runtime.js was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally.
javascript warning URL: https://cmp-consent-tool.privacymanager.io/latest/#/notice?theme=blueLagoon&useSystemFonts=false&cmpType=tcf
Message:
The resource https://cmp-consent-tool.privacymanager.io/latest/main.js was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally.
javascript warning URL: https://cmp-consent-tool.privacymanager.io/latest/#/notice?theme=blueLagoon&useSystemFonts=false&cmpType=tcf
Message:
The resource https://cmp-consent-tool.privacymanager.io/latest/vendor.js was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally.
javascript warning URL: https://cmp-consent-tool.privacymanager.io/latest/#/notice?theme=blueLagoon&useSystemFonts=false&cmpType=tcf
Message:
The resource https://cmp-consent-tool.privacymanager.io/latest/polyfills.js was preloaded using link preload but not used within a few seconds from the window's load event. Please make sure it has an appropriate `as` value and it is preloaded intentionally.

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
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.

ads.adthrive.com
ajax.googleapis.com
analytics.twitter.com
bc-script.britannica.com
c.amazon-adsystem.com
cdn-magiclinks.trackonomics.net
cdn.britannica.com
cdn.id5-sync.com
cdn.jwplayer.com
cmp-consent-tool.privacymanager.io
confiant-integrations.global.ssl.fastly.net
connect.facebook.net
content.jwplatform.com
dev.visualwebsiteoptimizer.com
encyclopediabritannica.blueconic.net
fonts.googleapis.com
fonts.gstatic.com
gdpr-wrapper.privacymanager.io
gdpr.privacymanager.io
insitez.blob.core.windows.net
securepubads.g.doubleclick.net
static.ads-twitter.com
static.cloudflareinsights.com
stats.g.doubleclick.net
t.co
webstats.eb.com
widget.surveymonkey.com
www.britannica.com
www.facebook.com
www.google-analytics.com
www.google.com
www.google.de
www.googleoptimize.com
www.googletagmanager.com
104.18.4.110
104.244.42.3
104.244.42.5
108.138.3.177
108.157.4.109
108.157.4.125
142.250.186.162
151.101.1.194
18.66.248.61
18.66.248.71
199.232.188.157
23.20.129.87
2600:9000:2156:1a00:1d:8c8c:47c0:93a1
2600:9000:224a:3c00:16:f82a:8600:93a1
2600:9000:2307:7a00:11:2a6a:9480:93a1
2600:9000:2315:3c00:1:a3fa:7cc0:93a1
2600:9000:2315:dc00:1:a3fa:7cc0:93a1
2606:4700:440e::ac40:9c1a
2a00:1450:4001:800::2004
2a00:1450:4001:803::200a
2a00:1450:4001:809::2003
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2a00:1450:4001:82a::200e
2a00:1450:4001:831::200e
2a00:1450:400c:c06::9b
2a03:2880:f01c:8012:face:b00c:0:3
2a03:2880:f12d:83:face:b00c:0:25de
3.214.95.187
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46.105.202.126
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