1.office.pdf1.workers.dev - robtex.com

1.office.pdf1.workers.dev

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:5aa7🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:9e34🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.90.167Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.158.52🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.90.167, 172.67.158.52
IPv6 hints2606:4700:3031::6815:5aa7, 2606:4700:3032::ac43:9e34
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=80, name=cloudflare-ech.com

office.pdf1.workers.dev

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:5aa7🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:9e34🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.90.167Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.158.52🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.90.167, 172.67.158.52
IPv6 hints2606:4700:3031::6815:5aa7, 2606:4700:3032::ac43:9e34
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=80, name=cloudflare-ech.com

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DNS History

4 records (4 active, 0 former)

A104.21.90.167172.67.158.522606:4700:3031::6815:5aa72606:4700:3032::ac43:9e34
●A104.21.90.1672026-03-12 → 2026-05-15 · 2 obs
● 2026-03-12 04:59:06
● 2026-05-15 13:11:48
●A172.67.158.522026-03-12 → 2026-05-15 · 2 obs
● 2026-03-12 04:59:06
● 2026-05-15 13:11:48
●A2606:4700:3031::6815:5aa72026-03-12 → 2026-05-15 · 2 obs
● 2026-03-12 04:59:06
● 2026-05-15 13:11:48
●A2606:4700:3032::ac43:9e342026-03-12 → 2026-05-15 · 2 obs
● 2026-03-12 04:59:06
● 2026-05-15 13:11:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
workers.devclyde.ns.cloudflare.com, sofia.ns.cloudflare.com-
pdf1.workers.devines.ns.cloudflare.com, rodrigo.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.164

NS records: ines.ns.cloudflare.com, rodrigo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for workers.dev (unsigned zone)

⏱️ Timing

Total: 487ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.158.52, 104.21.90.167
AAAA22606:4700:3032::ac43:9e34, 2606:4700:3031::6815:5aa7
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

1.office.pdf1.workers.dev maps to four IP numbers: 2606:4700:3031::6815:5aa7, 2606:4700:3032::ac43:9e34, 104.21.90.167 and 172.67.158.52.

Other host names, for instance (0x736578)enbir.org, miswag.me, yalia.com.cn, gates-of-olympus-cz.com and ara.(0x7868616d73746572)1.desi share IP numbers with 1.office.pdf1.workers.dev.