www.css.bio - robtex.com

www.css.bio

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:c2b5🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:14df🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.20.223Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.194.181🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.20.223, 172.67.194.181
IPv6 hints2606:4700:3030::ac43:c2b5, 2606:4700:3035::6815:14df
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=96, name=cloudflare-ech.com

css.bio

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:c2b5🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:14df🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.20.223Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.194.181🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSrodney.ns.cloudflare.com ⭐
NSvera.ns.cloudflare.com
MXin1-smtp.messagingengine.com ⭐
MXin2-smtp.messagingengine.com(20)
TXTv=spf1 include:spf.messagingengine.com -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.20.223, 172.67.194.181
IPv6 hints2606:4700:3030::ac43:c2b5, 2606:4700:3035::6815:14df
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=96, name=cloudflare-ech.com
SOArodney.ns.cloudflare.comdns@cloudflare.com serial=2401101330

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DNS History

12 records (4 active, 8 former)

2020202120222023202420252026A104.21.20.223172.67.194.1812606:4700:3030::ac43:c2b52606:4700:3035::6815:14df104.31.86.130104.31.87.130188.114.96.0188.114.97.02606:4700:30::681f:56822606:4700:30::681f:57822a06:98c1:3120::2a06:98c1:3121::
●A104.21.20.2232026-03-25 → 2026-04-23 · 5 obs
○ 2019-04-09 06:49:28
● 2026-03-25 22:17:18
○ 2026-03-27 10:15:42
○ 2026-04-20 17:37:24
● 2026-04-23 19:14:38
○A104.31.86.1302019-04-09 → 2019-04-09 · 3 obs
● 2019-04-09 06:49:28
○ 2026-03-25 22:17:18
○ 2026-04-23 19:14:38
○A104.31.87.1302019-04-09 → 2019-04-09 · 3 obs
● 2019-04-09 06:49:28
○ 2026-03-25 22:17:18
○ 2026-04-23 19:14:38
●A172.67.194.1812026-03-25 → 2026-04-23 · 5 obs
○ 2019-04-09 06:49:28
● 2026-03-25 22:17:18
○ 2026-03-27 10:15:42
○ 2026-04-20 17:37:24
● 2026-04-23 19:14:38
○A188.114.96.02026-03-27 → 2026-04-20 · 4 obs
○ 2026-03-25 22:17:18
● 2026-03-27 10:15:42
● 2026-04-20 17:37:24
○ 2026-04-23 19:14:38
○A188.114.97.02026-03-27 → 2026-04-20 · 4 obs
○ 2026-03-25 22:17:18
● 2026-03-27 10:15:42
● 2026-04-20 17:37:24
○ 2026-04-23 19:14:38
○A2606:4700:30::681f:56822019-04-09 → 2019-04-09 · 3 obs
● 2019-04-09 06:49:28
○ 2026-03-25 22:17:18
○ 2026-04-23 19:14:38
○A2606:4700:30::681f:57822019-04-09 → 2019-04-09 · 3 obs
● 2019-04-09 06:49:28
○ 2026-03-25 22:17:18
○ 2026-04-23 19:14:38
●A2606:4700:3030::ac43:c2b52026-03-25 → 2026-04-23 · 5 obs
○ 2019-04-09 06:49:28
● 2026-03-25 22:17:18
○ 2026-03-27 10:15:42
○ 2026-04-20 17:37:24
● 2026-04-23 19:14:38
●A2606:4700:3035::6815:14df2026-03-25 → 2026-04-23 · 5 obs
○ 2019-04-09 06:49:28
● 2026-03-25 22:17:18
○ 2026-03-27 10:15:42
○ 2026-04-20 17:37:24
● 2026-04-23 19:14:38
○A2a06:98c1:3120::2026-03-27 → 2026-04-20 · 4 obs
○ 2026-03-25 22:17:18
● 2026-03-27 10:15:42
● 2026-04-20 17:37:24
○ 2026-04-23 19:14:38
○A2a06:98c1:3121::2026-03-27 → 2026-04-20 · 4 obs
○ 2026-03-25 22:17:18
● 2026-03-27 10:15:42
● 2026-04-20 17:37:24
○ 2026-04-23 19:14:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
bioa0.nic.bio, a2.nic.bio, b0.nic.bio, c0.nic.bio8 records
css.biovera.ns.cloudflare.com, rodney.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.147

NS records: vera.ns.cloudflare.com, rodney.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for css.bio (unsigned zone)

⏱️ Timing

Total: 379ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.194.181, 104.21.20.223
AAAA22606:4700:3030::ac43:c2b5, 2606:4700:3035::6815:14df
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 8

In-bailiwick: 8 (a0.nic.bio, a2.nic.bio, b0.nic.bio...)

Analysis

IP Addresses

www.css.bio resolves to four IP numbers: 2606:4700:3030::ac43:c2b5, 2606:4700:3035::6815:14df, 104.21.20.223 and 172.67.194.181.

other host names for instance scholarsglobe.com, clearsmokehub.com, uiconstock.com, ns1.canaryislandsnews.net and glagol.su share IP numbers with www.css.bio.