`authenticationfailure.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:52d6^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:a402^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.82.214^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.164.2^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`amir.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b3e^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c13e^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`amir.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:213e^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`amir.ns.cloudflare.com`
		A	108.162.193.62^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	172.64.33.62^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
		A	173.245.59.62^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`amir.ns.cloudflare.com`
NS	`dora.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a6c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dora.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dora.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dora.ns.cloudflare.com`
		A	108.162.192.108^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dora.ns.cloudflare.com`
		A	172.64.32.108^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dora.ns.cloudflare.com`
		A	173.245.58.108^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dora.ns.cloudflare.com`
MX	`mx1.mail.ovh.net` ⭐
		A	188.165.36.237^{🇫🇷 OVH188.165.0.0/16 ISP Paris, France}
			PTR	`mx1.mail.ovh.net`
MX	`mx2.mail.ovh.net`⁽⁵⁾
		A	87.98.160.167^{🇫🇷 OVH87.98.128.0/17 ISP Paris, France}
			PTR	`mx2.mail.ovh.net`
MX	`mx3.mail.ovh.net`⁽¹⁰⁰⁾
TXT	`1\|www.authenticationfailure.com`
TXT	`v=spf1 include:mx.ovh.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.82.214, 172.67.164.2
		IPv6 hints	2606:4700:3031::6815:52d6, 2606:4700:3033::ac43:a402
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=73, name=cloudflare-ech.com
SOA	`amir.ns.cloudflare.com`dns@cloudflare.com serial=2401018689

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1775983122

Same first word

authenticationfailure.com

DNS History

12 records (9 active, 3 former)

●NSamir.ns.cloudflare.com2026-02-19 → 2026-04-12 · 3 obs

○ 2017-08-10 23:40:32
● 2026-02-19 00:37:46
● 2026-04-12 09:06:34

○NSdns19.ovh.net2017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 23:40:32
○ 2026-02-19 00:37:46
○ 2026-04-12 09:06:34

●NSdora.ns.cloudflare.com2026-02-19 → 2026-04-12 · 3 obs

○ 2017-08-10 23:40:32
● 2026-02-19 00:37:46
● 2026-04-12 09:06:34

○NSns19.ovh.net2017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 23:40:32
○ 2026-02-19 00:37:46
○ 2026-04-12 09:06:34

●MXmx1.mail.ovh.net2017-08-10 → 2026-04-12 · 2 obs

● 2017-08-10 23:40:32
● 2026-04-12 09:06:34

●MXmx2.mail.ovh.net2017-08-10 → 2026-04-12 · 2 obs

● 2017-08-10 23:40:32
● 2026-04-12 09:06:34

●MXmx3.mail.ovh.net2017-08-10 → 2026-04-12 · 2 obs

● 2017-08-10 23:40:32
● 2026-04-12 09:06:34

●A104.21.82.2142026-02-19 → 2026-04-12 · 3 obs

○ 2017-08-10 23:40:32
● 2026-02-19 00:37:46
● 2026-04-12 09:06:34

○A164.132.235.172017-08-10 → 2017-08-10 · 3 obs

● 2017-08-10 23:40:32
○ 2026-02-19 00:37:46
○ 2026-04-12 09:06:34

●A172.67.164.22026-02-19 → 2026-04-12 · 3 obs

○ 2017-08-10 23:40:32
● 2026-02-19 00:37:46
● 2026-04-12 09:06:34

●A2606:4700:3031::6815:52d62026-02-19 → 2026-04-12 · 3 obs

○ 2017-08-10 23:40:32
● 2026-02-19 00:37:46
● 2026-04-12 09:06:34

●A2606:4700:3033::ac43:a4022026-02-19 → 2026-04-12 · 3 obs

○ 2017-08-10 23:40:32
● 2026-02-19 00:37:46
● 2026-04-12 09:06:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, b.gtld-servers.net, m.gtld-servers.net, f.gtld-servers.net...	-
authenticationfailure.com	dora.ns.cloudflare.com, amir.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.108

NS records: dora.ns.cloudflare.com, amir.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for authenticationfailure.com (unsigned zone)

⏱️ Timing

Total: 138ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.164.2, 104.21.82.214`
AAAA	2	`2606:4700:3033::ac43:a402, 2606:4700:3031::6815:52d6`
NS	2	`amir.ns.cloudflare.com, dora.ns.cloudflare.com`
MX	3	`mx1.mail.ovh.net (pri: 1), mx3.mail.ovh.net (pri: 100)...`
TXT	2	`1\|www.authenticationfailure.com, v=spf1 include:mx.ovh.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`amir.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

authenticationfailure.com refers to four IP numbers: 2606:4700:3031::6815:52d6, 2606:4700:3033::ac43:a402, 104.21.82.214 and 172.67.164.2.

Other host names, for instance sovyatka.ru, v.wkvip.net, trijoofrou.sa.com, a.wkvip.net and www.sebokep.com share IP numbers with authenticationfailure.com.

Name Servers

authenticationfailure.com's delegation uses two name servers: amir.ns.cloudflare.com and dora.ns.cloudflare.com.

authenticationfailure.com uses the same name server setup as other domains, such as olivershay.com, chinesenovel.net, shenli.me, genuine-rc.nl and vps.how.

authenticationfailure.com at least partially shares name servers with other domains, including keyword-tools.org, brauchli.me, novel-lk.com, blacknblue.com and rdsuae.com.

These name servers are commonly used with ivan.ns.cloudflare.com.

Host names with six IP numbers:

amir.ns.cloudflare.com points to 2606:4700:58::adf5:3b3e, 2803:f800:50::6ca2:c13e, 2a06:98c1:50::ac40:213e, 108.162.193.62, 172.64.33.62 and 173.245.59.62.

dora.ns.cloudflare.com points to 2606:4700:50::adf5:3a6c, 2803:f800:50::6ca2:c06c, 2a06:98c1:50::ac40:206c, 108.162.192.108, 172.64.32.108 and 173.245.58.108.

Mail Servers

Three mail servers handle authenticationfailure.com: mx1.mail.ovh.net, mx2.mail.ovh.net and mx3.mail.ovh.net.

authenticationfailure.com shares at least some mail servers with other domains, for example sitocar.pl, boloss.fr, serelia.net, ip-141-95-144.eu and auray.fr.

These mail servers are often used with mx4.mail.ovh.net and mx0.mail.ovh.net.

Host names with a single IP address: mx1.mail.ovh.net points to 188.165.36.237; mx2.mail.ovh.net points to 87.98.160.167.

authenticationfailure.com - robtex.com