docs.racket-lang.org - robtex.com

docs.racket-lang.org

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:bc5a🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:30eb🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.48.235Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.188.90🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.48.235, 172.67.188.90
IPv6 hints2606:4700:3030::ac43:bc5a, 2606:4700:3036::6815:30eb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=95, name=cloudflare-ech.com

racket-lang.org

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:bc5a🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:30eb🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.48.235Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.188.90🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSclyde.ns.cloudflare.com ⭐
NSkate.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXaspmx2.googlemail.com(10)
MXaspmx3.googlemail.com(10)
TXTgoogle-site-verification=CrowIjuVNPgs4v43K9cFfnyzLkRyntZpVbcH7FZfSvI
TXTv=spf1 include:_spf.google.com ?all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.48.235, 172.67.188.90
IPv6 hints2606:4700:3030::ac43:bc5a, 2606:4700:3036::6815:30eb
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=95, name=cloudflare-ech.com
SOAclyde.ns.cloudflare.comdns@cloudflare.com serial=2402458231
WOT: SAFE (83/100)
rank #34395 globally
rank #3841 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #102,556

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DNS History

12 records (4 active, 8 former)

201820192020202120222023202420252026A104.21.48.235172.67.188.902606:4700:3030::ac43:bc5a2606:4700:3036::6815:30eb104.24.100.149104.24.101.149188.114.96.0188.114.97.02400:cb00:2048:1::6818:64952400:cb00:2048:1::6818:65952a06:98c1:3120::2a06:98c1:3121::
●A104.21.48.2352026-02-23 → 2026-04-25 · 6 obs
○ 2017-03-24 02:09:56
● 2026-02-23 01:52:00
● 2026-03-04 15:27:22
○ 2026-03-11 16:31:16
● 2026-03-24 02:20:10
● 2026-04-25 09:23:14
○A104.24.100.1492017-03-24 → 2017-03-24 · 3 obs
● 2017-03-24 02:09:56
○ 2026-02-23 01:52:00
○ 2026-04-25 09:23:14
○A104.24.101.1492017-03-24 → 2017-03-24 · 3 obs
● 2017-03-24 02:09:56
○ 2026-02-23 01:52:00
○ 2026-04-25 09:23:14
●A172.67.188.902026-02-23 → 2026-04-25 · 6 obs
○ 2017-03-24 02:09:56
● 2026-02-23 01:52:00
● 2026-03-04 15:27:22
○ 2026-03-11 16:31:16
● 2026-03-24 02:20:10
● 2026-04-25 09:23:14
○A188.114.96.02026-03-11 → 2026-03-11 · 4 obs
○ 2026-03-04 15:27:22
● 2026-03-11 16:31:16
○ 2026-03-24 02:20:10
○ 2026-04-25 09:23:14
○A188.114.97.02026-03-11 → 2026-03-11 · 4 obs
○ 2026-03-04 15:27:22
● 2026-03-11 16:31:16
○ 2026-03-24 02:20:10
○ 2026-04-25 09:23:14
○A2400:cb00:2048:1::6818:64952017-03-24 → 2017-03-24 · 3 obs
● 2017-03-24 02:09:56
○ 2026-02-23 01:52:00
○ 2026-04-25 09:23:14
○A2400:cb00:2048:1::6818:65952017-03-24 → 2017-03-24 · 3 obs
● 2017-03-24 02:09:56
○ 2026-02-23 01:52:00
○ 2026-04-25 09:23:14
●A2606:4700:3030::ac43:bc5a2026-02-23 → 2026-04-25 · 6 obs
○ 2017-03-24 02:09:56
● 2026-02-23 01:52:00
● 2026-03-04 15:27:22
○ 2026-03-11 16:31:16
● 2026-03-24 02:20:10
● 2026-04-25 09:23:14
●A2606:4700:3036::6815:30eb2026-02-23 → 2026-04-25 · 6 obs
○ 2017-03-24 02:09:56
● 2026-02-23 01:52:00
● 2026-03-04 15:27:22
○ 2026-03-11 16:31:16
● 2026-03-24 02:20:10
● 2026-04-25 09:23:14
○A2a06:98c1:3120::2026-03-11 → 2026-03-11 · 4 obs
○ 2026-03-04 15:27:22
● 2026-03-11 16:31:16
○ 2026-03-24 02:20:10
○ 2026-04-25 09:23:14
○A2a06:98c1:3121::2026-03-11 → 2026-03-11 · 4 obs
○ 2026-03-04 15:27:22
● 2026-03-11 16:31:16
○ 2026-03-24 02:20:10
○ 2026-04-25 09:23:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
racket-lang.orgclyde.ns.cloudflare.com, kate.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.91

NS records: clyde.ns.cloudflare.com, kate.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for racket-lang.org (unsigned zone)

⏱️ Timing

Total: 383ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.188.90, 104.21.48.235
AAAA22606:4700:3036::6815:30eb, 2606:4700:3030::ac43:bc5a
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

Four IP numbers are pointed to by docs.racket-lang.org: 2606:4700:3030::ac43:bc5a, 2606:4700:3036::6815:30eb, 104.21.48.235 and 172.67.188.90.

other host names including bitlo.io, ns2.cfcmaine.com, ns1.imaxis.com, www.cantabile2.dk and zhtiqbietjwhb.fun share IP numbers with docs.racket-lang.org.