www.rfc-editor.org
104.18.21.81  Public Scan Open in urlscan Pro

Internal
urlscan.io (IP) urlscan.io (Domain)
Effective Hostname
VirusTotal SecurityTrails crt.sh
Submitted URL
Google Safe Browsing Archive.org
Effective URL Pivot
Google Safe Browsing Archive.org
Effective IP
VirusTotal SecurityTrails Domaintools Censys
Go To Rescan
Add Verdict Report
Submitted URL:
http://tools.ietf.org/html/bcp47 13yr old
Effective URL:
https://www.rfc-editor.org/info/bcp47 9yr old
Submission: On December 27 via api (December 27th 2025, 10:02:48 pm UTC) from CA — Scanned from US
Summary HTTP 15 Redirects Links 8  Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 4 IPs in 2 countries across 4 domains to perform 15 HTTP transactions. The main IP is 104.18.21.81, located in Ascension Island and belongs to CLOUDFLARENET, US. The main domain is www.rfc-editor.org. The Cisco Umbrella rank of the primary domain is 139361. 9yr old
TLS certificate: Issued by WE1 on December 18th 2025. Valid for: 3mo.
This is the only time www.rfc-editor.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 3 104.16.44.99 104.16.44.99 13335 (CLOUDFLAR...) (CLOUDFLARENET)
1 1 104.16.45.99 104.16.45.99 13335 (CLOUDFLAR...) (CLOUDFLARENET)
11 104.18.21.81 104.18.21.81 13335 (CLOUDFLAR...) (CLOUDFLARENET)
1 172.217.165.138 172.217.165.138 15169 (GOOGLE) (GOOGLE)
1 142.250.81.227 142.250.81.227 15169 (GOOGLE) (GOOGLE)
15 4
3    104.16.44.99 (Ascension Island) 1 redirects
IP Lookup
urlscan.io SecurityTrails VirusTotal AbuseIPDB Censys Domaintools ipinfo.io Shodan
ASN Lookup
urlscan.io CAIDA Rank ipinfo.io CIRCL BGP Ranking

ASN13335 (CLOUDFLARENET, US)
tools.ietf.org 13yr old
VirusTotal SecurityTrails crt.sh Domaintools
analytics.ietf.org 6yr old
VirusTotal SecurityTrails crt.sh Domaintools
1    104.16.45.99 (Ascension Island) 1 redirects
IP Lookup
urlscan.io SecurityTrails VirusTotal AbuseIPDB Censys Domaintools ipinfo.io Shodan
ASN Lookup
urlscan.io CAIDA Rank ipinfo.io CIRCL BGP Ranking

ASN13335 (CLOUDFLARENET, US)
datatracker.ietf.org 9yr old
VirusTotal SecurityTrails crt.sh Domaintools
11    104.18.21.81 (Ascension Island)
IP Lookup
urlscan.io SecurityTrails VirusTotal AbuseIPDB Censys Domaintools ipinfo.io Shodan
ASN Lookup
urlscan.io CAIDA Rank ipinfo.io CIRCL BGP Ranking

ASN13335 (CLOUDFLARENET, US)
www.rfc-editor.org 9yr old
VirusTotal SecurityTrails crt.sh Domaintools
1    172.217.165.138 (United States)
IP Lookup
urlscan.io SecurityTrails VirusTotal AbuseIPDB Censys Domaintools ipinfo.io Shodan
ASN Lookup
urlscan.io CAIDA Rank ipinfo.io CIRCL BGP Ranking

ASN15169 (GOOGLE, US)
PTR: lga25s70-in-f10.1e100.net
fonts.googleapis.com 10yr old
VirusTotal SecurityTrails crt.sh Domaintools
1    142.250.81.227 (United States)
IP Lookup
urlscan.io SecurityTrails VirusTotal AbuseIPDB Censys Domaintools ipinfo.io Shodan
ASN Lookup
urlscan.io CAIDA Rank ipinfo.io CIRCL BGP Ranking

ASN15169 (GOOGLE, US)
PTR: lga25s74-in-f3.1e100.net
fonts.gstatic.com 10yr old
VirusTotal SecurityTrails crt.sh Domaintools
Apex Domain
Subdomains		 Transfer
11 rfc-editor.org
www.rfc-editor.org — Cisco Umbrella Rank: 139361 9yr old
115 KB
4 ietf.org 2 redirects
tools.ietf.org — Cisco Umbrella Rank: 584833 13yr old
datatracker.ietf.org — Cisco Umbrella Rank: 271668 9yr old
analytics.ietf.org — Cisco Umbrella Rank: 525411 6yr old
23 KB
1 gstatic.com
fonts.gstatic.com 10yr old
13 KB
1 googleapis.com
fonts.googleapis.com — Cisco Umbrella Rank: 45 10yr old
1 KB
15 4
Domain Requested by
11 www.rfc-editor.org www.rfc-editor.org
2 analytics.ietf.org www.rfc-editor.org
analytics.ietf.org
1 fonts.gstatic.com fonts.googleapis.com
1 fonts.googleapis.com www.rfc-editor.org
1 datatracker.ietf.org 1 redirects
1 tools.ietf.org 1 redirects
15 6

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

Domain
bib.ietf.org
www.iab.org
www.iana.org
www.ietf.org
www.irtf.org
www.internetsociety.org
trustee.ietf.org
Subject Issuer Validity Valid
rfc-editor.org
WE1		 2025-12-18 -
2026-03-18		 3mo crt.sh
upload.video.google.com
WR2		 2025-12-03 -
2026-02-25		 3mo crt.sh
ietf.org
E8		 2025-11-13 -
2026-02-11		 3mo crt.sh
*.gstatic.com
WR2		 2025-12-03 -
2026-02-25		 3mo crt.sh

This page contains 1 frames:

Primary Page: https://www.rfc-editor.org/info/bcp47
Frame ID: 430542CB3E2DB28D5A5A713E1FC8DD41
Requests: 15 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Information on BCP 47 ยป RFC Editor

Page URL History Show full URLs

  1. http://tools.ietf.org/html/bcp47 HTTP 307
    https://tools.ietf.org/html/bcp47 HTTP 301
    https://datatracker.ietf.org/doc/html/bcp47 HTTP 302
    https://www.rfc-editor.org/info/bcp47 Page URL

Detected technologies

(CMS)
Overall confidence: 100%
Detected patterns
  • <link rel=["']stylesheet["'] [^>]+/wp-(?:content|includes)/
  • /wp-(?:content|includes)/
(Font scripts)
Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]+fonts\.(?:googleapis|google)\.com
(JavaScript libraries)
Overall confidence: 100%
Detected patterns
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?
(JavaScript libraries)
Overall confidence: 100%
Detected patterns
  • jquery[.-]migrate(?:-([\d.]+))?(?:\.min)?\.js(?:\?ver=([\d.]+))?

Page Statistics

15
Requests

100 %
HTTPS

0 %
IPv6

4
Domains

6
Subdomains

4
IPs

2
Countries

151 kB
Transfer

466 kB
Size

4
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://tools.ietf.org/html/bcp47 HTTP 307
    https://tools.ietf.org/html/bcp47 HTTP 301
    https://datatracker.ietf.org/doc/html/bcp47 HTTP 302
    https://www.rfc-editor.org/info/bcp47 Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

15 HTTP transactions
0 data transactions

Method
Protocol		 Status Resource
Path		 Size
x-fer		 Time
Latency		 Type
MIME-Type		 IP
Location
GET
H3 		200
 Primary Request bcp47 Show response
www.rfc-editor.org/info/
Redirect Chain
  • http://tools.ietf.org/html/bcp47
  • https://tools.ietf.org/html/bcp47
  • https://datatracker.ietf.org/doc/html/bcp47
  • https://www.rfc-editor.org/info/bcp47
62 KB
14 KB 		708ms
623ms 		Document
text/html		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
d64674940745081799b72321625b1e0b49ab2b5fa6b2b4f2c4a9fa098754c7a0
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Response headers

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray
9b4c1ab6bc9a75d3-SEA
content-encoding
br
content-type
text/html; charset=UTF-8
date
Sat, 27 Dec 2025 22:02:49 GMT
priority
u=0,i
server
cloudflare
server-timing
cfExtPri
strict-transport-security
max-age=31536000; includeSubDomains
vary
Accept-Encoding
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
x-xss-protection
1; mode=block

Redirect headers

alt-svc
h3=":443"; ma=86400
cache-control
public, max-age=14400
cf-cache-status
HIT
cf-ray
9b4c1ab50984a5a0-SEA
content-security-policy
default-src 'self' 'unsafe-inline' data: https://datatracker.ietf.org/ https://www.ietf.org/ http://ietf.org/ https://analytics.ietf.org https://static.ietf.org; frame-ancestors 'self' ietf.org *.ietf.org meetecho.com *.meetecho.com
content-type
text/html; charset=utf-8
cross-origin-opener-policy
unsafe-none
date
Sat, 27 Dec 2025 22:02:48 GMT
expires
Sun, 28 Dec 2025 02:02:48 GMT
location
https://www.rfc-editor.org/info/bcp47
priority
u=0,i
referrer-policy
strict-origin-when-cross-origin
server
cloudflare
server-timing
cfExtPri
strict-transport-security
max-age=3600; includeSubDomains
vary
Cookie, Accept-Encoding
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
GET
H3 		200
 style.css
www.rfc-editor.org/wp-content/themes/techozoic-fluid/ 		43 KB
8 KB 		158ms
157ms 		Stylesheet
text/css		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-content/themes/techozoic-fluid/style.css
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
2cb75e9ee1adbe40d2ed0544b4dcf160aec3c9f37a6745f1578e67eea4116ccf
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"adf8-5fc4d8a52a4c1-gzip"
age
6579
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:49 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
text/css
last-modified
Mon, 22 May 2023 19:47:26 GMT
vary
Accept-Encoding
priority
u=0,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1abacf0675d3-SEA
accept-ranges
bytes
content-length
8335
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 style.min.css
www.rfc-editor.org/wp-includes/css/dist/block-library/ 		87 KB
12 KB 		88ms
87ms 		Stylesheet
text/css		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-includes/css/dist/block-library/style.min.css?ver=6.0.11
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
d7705700d24d5919255576642ad2c28bfc790390b7183a369038ff5c1e814d51
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"15b64-5e9112faa0cfa"
age
5102
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:49 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
text/css
last-modified
Tue, 20 Sep 2022 00:48:26 GMT
vary
Accept-Encoding
priority
u=0,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1abadf0775d3-SEA
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 dashicons.min.css
www.rfc-editor.org/wp-includes/css/ 		58 KB
35 KB 		225ms
223ms 		Stylesheet
text/css		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-includes/css/dashicons.min.css?ver=6.0.11
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
c21e5a2b32c47bc5f9d9efc97bc0e29fd081946d1d3ebffc5621cfafb1d3960e
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"e688-5dfca7a5fb304"
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:49 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
text/css
last-modified
Tue, 24 May 2022 23:40:13 GMT
vary
Accept-Encoding
priority
u=0,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1abadf0975d3-SEA
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 mobile.css
www.rfc-editor.org/wp-content/themes/techozoic-fluid/css/ 		6 KB
2 KB 		168ms
166ms 		Stylesheet
text/css		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-content/themes/techozoic-fluid/css/mobile.css?ver=0.1
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
b21687e3078661159cf34dccca763116417697ac8f9fe4b4151d17c8dbec19c4
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"1911-520ea217057c0"
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:49 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
text/css
last-modified
Tue, 29 Sep 2015 22:13:59 GMT
vary
Accept-Encoding
priority
u=0,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1abadf0a75d3-SEA
x-xss-protection
1; mode=block
server
cloudflare
GET
H2 		200
 css
fonts.googleapis.com/ 		3 KB
1 KB 		562ms
220ms 		Stylesheet
text/css		 172.217.165.138
GOOGLE
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Noto+Sans%7C&ver=6.0.11
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
172.217.165.138 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
lga25s70-in-f10.1e100.net
Software
ESF /
Resource Hash
35c048fcd4d20bc35c22922ddd4093291776aa141d0834e822f17c6775fc10a0
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

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/

Response headers

content-encoding
gzip
x-content-type-options
nosniff
expires
Sat, 27 Dec 2025 22:02:49 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
text/css; charset=utf-8
vary
Sec-Fetch-Dest, Sec-Fetch-Mode, Sec-Fetch-Site
last-modified
Sat, 27 Dec 2025 22:02:49 GMT
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
cross-origin-opener-policy
same-origin-allow-popups
cross-origin-resource-policy
cross-origin
access-control-allow-origin
*
x-xss-protection
0
server
ESF
GET
H3 		200
 jquery.min.js Show response
www.rfc-editor.org/wp-includes/js/jquery/ 		87 KB
30 KB 		91ms
90ms 		Script
application/javascript		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-includes/js/jquery/jquery.min.js?ver=3.6.0
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
bd4de6a3fc0fb68d6f76ba7b93514b96a92e585c295b5351c31ad92a4b0777ea
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"15db1-5dfca7a608dc5-gzip"
age
3875
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:49 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
application/javascript
last-modified
Tue, 24 May 2022 23:40:13 GMT
vary
Accept-Encoding
priority
u=1,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1abadf0b75d3-SEA
accept-ranges
bytes
content-length
30908
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 jquery-migrate.min.js Show response
www.rfc-editor.org/wp-includes/js/jquery/ 		11 KB
4 KB 		89ms
88ms 		Script
application/javascript		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.3.2
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
029e0a2e809fd6b5dbe76abe8b7a74936be306c9a8c27c814c4d44aa54623300
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"2bd8-5dfca7a608dc5-gzip"
age
5825
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:49 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
application/javascript
last-modified
Tue, 24 May 2022 23:40:13 GMT
vary
Accept-Encoding
priority
u=1,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1abadf0c75d3-SEA
accept-ranges
bytes
content-length
4169
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 rmp-menu.js Show response
www.rfc-editor.org/wp-content/plugins/responsive-menu/v4.0.0/assets/js/ 		11 KB
3 KB 		225ms
224ms 		Script
application/javascript		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-content/plugins/responsive-menu/v4.0.0/assets/js/rmp-menu.js?ver=4.1.11
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
8a3482f2f6cf17dd0081f005c3b3e024da5e646e594e515a12fe3b5d01beb36c
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"2a83-5e042e5655d6a-gzip"
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:49 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
application/javascript
last-modified
Mon, 30 May 2022 23:20:04 GMT
vary
Accept-Encoding
priority
u=1,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1abadf0d75d3-SEA
accept-ranges
bytes
content-length
2830
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 matomo-tracking.js Show response
www.rfc-editor.org/wp-content/themes/techozoic-fluid/js/ 		478 B
623 B 		88ms
87ms 		Script
application/javascript		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-content/themes/techozoic-fluid/js/matomo-tracking.js
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
798eb593faa0999e7c65df1564812f9ca8da293276f0ac14d4f8ef95e2d0dde8
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"1de-5e9247a6c149f-gzip"
age
3033
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:49 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
application/javascript
last-modified
Tue, 20 Sep 2022 23:49:25 GMT
vary
Accept-Encoding
priority
u=1,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1abadf0f75d3-SEA
accept-ranges
bytes
content-length
324
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 wp-emoji-release.min.js Show response
www.rfc-editor.org/wp-includes/js/ 		18 KB
5 KB 		90ms
90ms 		Script
application/javascript		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-includes/js/wp-emoji-release.min.js?ver=6.0.11
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/info/bcp47
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
5aad5fbd4238981a9ff5e2772ff1353dfe1a801fb49542fe157418c1438f7782
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"48b9-5dfca7a60fb26-gzip"
age
6579
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:49 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:49 GMT
content-type
application/javascript
last-modified
Tue, 24 May 2022 23:40:13 GMT
vary
Accept-Encoding
priority
u=3,i=?0
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1abc4fe675d3-SEA
accept-ranges
bytes
content-length
5009
x-xss-protection
1; mode=block
server
cloudflare
GET
H3 		200
 matomo.js Show response
analytics.ietf.org/ 		66 KB
22 KB 		195ms
106ms 		Script
application/javascript		 104.16.44.99
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://analytics.ietf.org/matomo.js
Requested by
Host: www.rfc-editor.org
URL: https://www.rfc-editor.org/wp-content/themes/techozoic-fluid/js/matomo-tracking.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
1762dd6a64fcd59421610b68625258f9224a1f278159c4d99282adb631470465

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/

Response headers

content-encoding
br
cf-cache-status
HIT
etag
W/"693ab1cd-10984"
age
54998
expires
Sun, 28 Dec 2025 22:02:50 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:50 GMT
content-type
application/javascript
last-modified
Thu, 11 Dec 2025 11:58:05 GMT
vary
Accept-Encoding
priority
u=3,i=?0
cache-control
public, max-age=86400
pragma
public
cf-ray
9b4c1abf6dde76ae-SEA
server
cloudflare
GET
H3 		200
 o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A-9a6VI.woff2
fonts.gstatic.com/s/notosans/v42/ 		13 KB
13 KB 		271ms
131ms 		Font
font/woff2		 142.250.81.227
GOOGLE
General
Check archive.org
Download Go to
Full URL
https://fonts.gstatic.com/s/notosans/v42/o-0mIpQlx3QUlC5A4PNB6Ryti20_6n1iPHjcz6L1SoM-jCpoiyD9A-9a6VI.woff2
Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Noto+Sans%7C&ver=6.0.11
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
142.250.81.227 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
lga25s74-in-f3.1e100.net
Software
sffe /
Resource Hash
09aee8065d25508f23a4c3d92cd777ac869c52d93fd868a88f025d888a7937d6
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Origin
https://www.rfc-editor.org
Referer
https://fonts.googleapis.com/

Response headers

age
270190
report-to
{"group":"apps-themes","max_age":2592000,"endpoints":[{"url":"https://csp.withgoogle.com/csp/report-to/apps-themes"}]}
x-content-type-options
nosniff
expires
Thu, 24 Dec 2026 18:59:40 GMT
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date
Wed, 24 Dec 2025 18:59:40 GMT
last-modified
Wed, 10 Sep 2025 16:23:43 GMT
content-type
font/woff2
cache-control
public, max-age=31536000
timing-allow-origin
*
cross-origin-opener-policy
same-origin; report-to="apps-themes"
cross-origin-resource-policy
cross-origin
content-security-policy-report-only
require-trusted-types-for 'script'; report-uri https://csp.withgoogle.com/csp/apps-themes
accept-ranges
bytes
access-control-allow-origin
*
content-length
13120
x-xss-protection
0
server
sffe
POST
H3 		204
 matomo.php
analytics.ietf.org/ 		0
0 		327ms
326ms 		Ping
text/html		 104.16.44.99
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://analytics.ietf.org/matomo.php?action_name=Information%20on%20BCP%2047%20%C2%BB%20RFC%20Editor&idsite=10&rec=1&r=391565&h=12&m=2&s=50&url=https%3A%2F%2Fwww.rfc-editor.org%2Finfo%2Fbcp47&_id=d6e463f05606d6c4&_idn=1&send_image=0&_refts=0&pv_id=jOVa1V&pf_net=86&pf_srv=622&pf_tfr=69&pf_dm1=679&uadata=%7B%22formFactors%22%3A%5B%5D%2C%22fullVersionList%22%3A%5B%5D%2C%22mobile%22%3Afalse%2C%22model%22%3A%22%22%2C%22platform%22%3A%22%22%2C%22platformVersion%22%3A%22%22%7D&pdf=1&qt=0&realp=0&wma=0&fla=0&java=0&ag=0&cookie=1&res=1600x1200
Requested by
Host: analytics.ietf.org
URL: https://analytics.ietf.org/matomo.js
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.16.44.99 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
/
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Content-Type
application/x-www-form-urlencoded; charset=utf-8
Referer
https://www.rfc-editor.org/

Response headers
GET
H3 		200
 favicon-1.ico
www.rfc-editor.org/wp-content/uploads/ 		198 B
402 B 		109ms
108ms 		Other
image/x-icon		 104.18.21.81
CLOUDFLARENET
General
Check archive.org
Download Go to
Full URL
https://www.rfc-editor.org/wp-content/uploads/favicon-1.ico
Protocol
H3
Security
QUIC, , AES_128_GCM
Server
104.18.21.81 , Ascension Island, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
8a91d0d5efcf4458450a756f5b8cea35b649b13b62650eee47e93e716daa23dc
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

User-Agent
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36
Referer
https://www.rfc-editor.org/info/bcp47

Response headers

content-encoding
gzip
cf-cache-status
HIT
etag
"c6-5dfdd05f66b9c-gzip"
age
15726
x-content-type-options
nosniff
expires
Sun, 28 Dec 2025 02:02:50 GMT
alt-svc
h3=":443"; ma=86400
server-timing
cfExtPri
date
Sat, 27 Dec 2025 22:02:50 GMT
content-type
image/x-icon
last-modified
Wed, 25 May 2022 21:47:44 GMT
vary
Accept-Encoding
priority
u=1,i
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=31536000; includeSubDomains
cache-control
public, max-age=14400
cf-ray
9b4c1ac0fb3a75d3-SEA
accept-ranges
bytes
content-length
96
x-xss-protection
1; mode=block
server
cloudflare

Verdicts & Comments Add Verdict or Comment

10 JavaScript Window variables

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

object| _wpemojiSettings object| twemoji object| wp function| jQuery object| rmp_menu object| _paq object| Piwik object| Matomo object| AnalyticsTracker function| piwik_log

4 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

Domain/Path Expires Name / Value
.ietf.org/ 1970-01-21
10:47:54 		Name: __cf_bm
Value: 1X8ysnci72aLXR7Id.evbToa_Is68qGQBWL7FUqCbjo-1766872968-1.0.1.1-y4g.6c8wpWEINSAV4vOQ9UITH.Pm00l0Fru4iqvE32RIIOyQ9YipXoPK73DL8DJzSTRw7DRvwisWCcZ1fV5nh9b17yJPEP3O1AKgJCeCUfA
.rfc-editor.org/ 1970-01-21
10:47:54 		Name: __cf_bm
Value: L1XextgDXB1qxIms3TdwHcbUxhhIJBCWJSFlh_RWAv0-1766872969-1.0.1.1-xiLSL8bFvXSRIdcFZl0.1aNRdxJJ513Meo8KNObCjUvSwekrRnKiTP7QDUtM1Nu2MReAJkcmP4qo7_SxqultgDxwpiOqvPtz2c2Rkh8GGmk
www.rfc-editor.org/ 1970-01-21
20:13:48 		Name: _pk_id.10.9010
Value: d6e463f05606d6c4.1766872970.
www.rfc-editor.org/ 1970-01-21
10:47:54 		Name: _pk_ses.10.9010
Value: 1

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
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block