`mail.instrucenter.com`

DNSSEC	⚠️ Not signed
A	5.135.69.35^{🇫🇷 OVH5.135.0.0/16}
		PTR	`lh570.irandns.com`

`instrucenter.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:518d^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:bda1^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.81.141^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.189.161^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`erin.ns.cloudflare.com` ⭐
NS	`igor.ns.cloudflare.com`
MX	`mail.instrucenter.com` ⭐
TXT	`google-site-verification=UHHqx4oC9ycFUcQBIhqVFGfoHMUR2e6a_APi86hMt6k`
TXT	`v=spf1 a mx ip4:5.135.69.35 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.81.141, 172.67.189.161
		IPv6 hints	2606:4700:3036::6815:518d, 2606:4700:3037::ac43:bda1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=77, name=cloudflare-ech.com
SOA	`erin.ns.cloudflare.com`dns@cloudflare.com serial=2399958272

MX for

instrucenter.com

Same first word

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DNS History

3 records (1 active, 2 former)

○A144.76.180.1642015-08-21 → 2016-03-11 · 4 obs

● 2015-08-21 01:37:56
● 2016-03-11 17:53:36
○ 2016-07-09 04:02:44
○ 2026-04-12 06:35:30

○A185.8.173.392016-07-09 → 2016-07-09 · 4 obs

○ 2016-03-11 17:53:36
● 2016-07-09 04:02:44
○ 2017-04-29 19:27:56
○ 2026-04-12 06:35:30

●A5.135.69.352026-04-03 → 2026-04-12 · 3 obs

○ 2017-04-29 19:27:56
● 2026-04-03 08:50:40
● 2026-04-12 06:35:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, e.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net...	-
instrucenter.com	erin.ns.cloudflare.com, igor.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.113

NS records: erin.ns.cloudflare.com, igor.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for instrucenter.com (unsigned zone)

⏱️ Timing

Total: 173ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`5.135.69.35`

📌 Glue Records Collected

Total: 12

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

Analysis

Mail Server Role

mail.instrucenter.com functions as a mail server for instrucenter.com.

IP Addresses

mail.instrucenter.com points to IP number: 5.135.69.35.

Other host names such as _dc-mx.39b4c3c3fb89.shopmanual.net, lh570.irandns.com, banoofilm.com, mail.likerd.com and jamcenterstore.com share IPs with mail.instrucenter.com.

mail.instrucenter.com - robtex.com