www.rutlib.com - robtex.com

www.rutlib.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:ac62🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::6815:47f1🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.241Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.98🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.71.241, 172.67.172.98
IPv6 hints2606:4700:3030::ac43:ac62, 2606:4700:3031::6815:47f1
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=101, name=cloudflare-ech.com

rutlib.com

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:ac62🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3031::6815:47f1🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.241Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.172.98🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSemily.ns.cloudflare.com ⭐
NSmajor.ns.cloudflare.com
TXTgoogle-site-verification=UVuI6jfYBOWuxWZPGRiuvVx89VXGLfefOp5Wm2yeDE0
TXTv=spf1 a mx a:rutlib.com ip4:46.4.1.51 ip6:2a01:4f8:130:21a2::2 ip6:2a01:4f8:...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.71.241, 172.67.172.98
IPv6 hints2606:4700:3030::ac43:ac62, 2606:4700:3031::6815:47f1
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=101, name=cloudflare-ech.com
SOAemily.ns.cloudflare.comdns@cloudflare.com serial=2401780697

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DNS History

8 records (4 active, 4 former)

2017201820192020202120222023202420252026A104.21.71.241172.67.172.982606:4700:3030::ac43:ac622606:4700:3031::6815:47f1104.24.120.201104.24.121.2012400:cb00:2048:1::6818:78c92400:cb00:2048:1::6818:79c9
●A104.21.71.2412026-04-11 → 2026-05-12 · 3 obs
○ 2017-12-07 23:25:32
● 2026-04-11 14:33:28
● 2026-05-12 14:39:58
○A104.24.120.2012016-12-28 → 2017-12-07 · 4 obs
● 2016-12-28 17:00:02
● 2017-12-07 23:25:32
○ 2026-04-11 14:33:28
○ 2026-05-12 14:39:58
○A104.24.121.2012016-12-28 → 2017-12-07 · 4 obs
● 2016-12-28 17:00:02
● 2017-12-07 23:25:32
○ 2026-04-11 14:33:28
○ 2026-05-12 14:39:58
●A172.67.172.982026-04-11 → 2026-05-12 · 3 obs
○ 2017-12-07 23:25:32
● 2026-04-11 14:33:28
● 2026-05-12 14:39:58
○A2400:cb00:2048:1::6818:78c92016-12-28 → 2017-12-07 · 4 obs
● 2016-12-28 17:00:02
● 2017-12-07 23:25:32
○ 2026-04-11 14:33:28
○ 2026-05-12 14:39:58
○A2400:cb00:2048:1::6818:79c92016-12-28 → 2017-12-07 · 4 obs
● 2016-12-28 17:00:02
● 2017-12-07 23:25:32
○ 2026-04-11 14:33:28
○ 2026-05-12 14:39:58
●A2606:4700:3030::ac43:ac622026-04-11 → 2026-05-12 · 3 obs
○ 2017-12-07 23:25:32
● 2026-04-11 14:33:28
● 2026-05-12 14:39:58
●A2606:4700:3031::6815:47f12026-04-11 → 2026-05-12 · 3 obs
○ 2017-12-07 23:25:32
● 2026-04-11 14:33:28
● 2026-05-12 14:39:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
rutlib.comemily.ns.cloudflare.com, major.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.155

NS records: emily.ns.cloudflare.com, major.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for rutlib.com (unsigned zone)

⏱️ Timing

Total: 133ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.172.98, 104.21.71.241
AAAA22606:4700:3030::ac43:ac62, 2606:4700:3031::6815:47f1
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (emily.ns.cloudflare.com, emily.ns.cloudflare.com, emily.ns.cloudflare.com...)

Analysis

IP Addresses

www.rutlib.com maps to four IP numbers: 2606:4700:3030::ac43:ac62, 2606:4700:3031::6815:47f1, 104.21.71.241 and 172.67.172.98.

Other host names, for instance www.riff.us, www.studiotheatre.org, bnconsult.se, hao292.com and posternlayer.click share IP numbers with www.rutlib.com.