fallback.api.doubleverify.io - dns.ninja

fallback.api.doubleverify.io

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:4182🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:917e🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.65.130Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.145.126🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.65.130, 172.67.145.126
IPv6 hints2606:4700:3030::6815:4182, 2606:4700:3035::ac43:917e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=173, name=cloudflare-ech.com

api.doubleverify.io

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:4182🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:917e🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.65.130Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.145.126🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjasmine.ns.cloudflare.com ⭐
NSzeus.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.65.130, 172.67.145.126
IPv6 hints2606:4700:3030::6815:4182, 2606:4700:3035::ac43:917e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=173, name=cloudflare-ech.com
SOAjasmine.ns.cloudflare.comdns@cloudflare.com serial=2410209719

Same first word

fallback.site
fallback.at
fallback.org
fallback.biz
fallback.com
fallback.io
fallback.ru
fallback.de
fallback.ca
fallback.it
fallback.zone
fallback.us
fallback.cloud
fallback.be
fallback.in
fallback.nl
fallback.net
fallback.info
fallback.mx

DNS History

8 records (4 active, 4 former)

A104.21.65.130172.67.145.1262606:4700:3030::6815:41822606:4700:3035::ac43:917e188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●A104.21.65.1302026-07-25 → 2026-07-25 · 2 obs
○ 2026-05-31 07:28:00
● 2026-07-25 08:54:54
●A172.67.145.1262026-07-25 → 2026-07-25 · 2 obs
○ 2026-05-31 07:28:00
● 2026-07-25 08:54:54
○A188.114.96.02026-05-31 → 2026-05-31 · 2 obs
● 2026-05-31 07:28:00
○ 2026-07-25 08:54:54
○A188.114.97.02026-05-31 → 2026-05-31 · 2 obs
● 2026-05-31 07:28:00
○ 2026-07-25 08:54:54
●A2606:4700:3030::6815:41822026-07-25 → 2026-07-25 · 2 obs
○ 2026-05-31 07:28:00
● 2026-07-25 08:54:54
●A2606:4700:3035::ac43:917e2026-07-25 → 2026-07-25 · 2 obs
○ 2026-05-31 07:28:00
● 2026-07-25 08:54:54
○A2a06:98c1:3120::2026-05-31 → 2026-05-31 · 2 obs
● 2026-05-31 07:28:00
○ 2026-07-25 08:54:54
○A2a06:98c1:3121::2026-05-31 → 2026-05-31 · 2 obs
● 2026-05-31 07:28:00
○ 2026-07-25 08:54:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
ioa0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io-
doubleverify.ions-cloud-c1.googledomains.com, ns-cloud-c2.googledomains.com, ns-cloud-c3.googledomains.com, ns-cloud-c4.googledomains.com-
api.doubleverify.iojasmine.ns.cloudflare.com, zeus.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.33.249

NS records: jasmine.ns.cloudflare.com, zeus.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for doubleverify.io (unsigned zone)

⏱️ Timing

Total: 275ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.145.126, 104.21.65.130
AAAA22606:4700:3030::6815:4182, 2606:4700:3035::ac43:917e
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

fallback.api.doubleverify.io has four IP addresses: 104.21.65.130, 172.67.145.126, 2606:4700:3030::6815:4182 and 2606:4700:3035::ac43:917e.

Two other host names, along with www.fast-cat.net, www.fullyhd.com and www.jarkitchen.com, also share IP numbers with fallback.api.doubleverify.io.