`maintaincourse.ir`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:bb4b^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:50de^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.80.222^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.187.75^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lola.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a84^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lola.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c084^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lola.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2084^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lola.ns.cloudflare.com`
		A	108.162.192.132^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lola.ns.cloudflare.com`
		A	172.64.32.132^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lola.ns.cloudflare.com`
		A	173.245.58.132^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lola.ns.cloudflare.com`
NS	`merlin.ns.cloudflare.com`
		A	2606:4700:58::adf5:3bcd^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`merlin.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1cd^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`merlin.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21cd^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`merlin.ns.cloudflare.com`
		A	108.162.193.205^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`merlin.ns.cloudflare.com`
		A	172.64.33.205^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`merlin.ns.cloudflare.com`
		A	173.245.59.205^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`merlin.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.80.222, 172.67.187.75
		IPv6 hints	2606:4700:3034::ac43:bb4b, 2606:4700:3036::6815:50de
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=212, name=cloudflare-ech.com
SOA	`lola.ns.cloudflare.com`dns@cloudflare.com serial=2403434205

`ir`

	DNSSEC	⚠️ Not signed
	NS	`a.nic.ir` ⭐
	NS	`b.nic.ir`
	NS	`c.nic.ir`
	NS	`d.nic.ir`
	SOA	`a.nic.ir`info@nic.ir serial=2605121845

Same first word

maintaincourse.ir

Similar names

marineauctions.com.au

DNS History

6 records (6 active, 0 former)

●NSlola.ns.cloudflare.com2026-02-16 → 2026-05-12 · 2 obs

● 2026-02-16 21:26:28
● 2026-05-12 16:14:32

●NSmerlin.ns.cloudflare.com2026-02-16 → 2026-05-12 · 2 obs

● 2026-02-16 21:26:28
● 2026-05-12 16:14:32

●A104.21.80.2222026-02-16 → 2026-05-12 · 2 obs

● 2026-02-16 21:26:28
● 2026-05-12 16:14:32

●A172.67.187.752026-02-16 → 2026-05-12 · 2 obs

● 2026-02-16 21:26:28
● 2026-05-12 16:14:32

●A2606:4700:3034::ac43:bb4b2026-02-16 → 2026-05-12 · 2 obs

● 2026-02-16 21:26:28
● 2026-05-12 16:14:32

●A2606:4700:3036::6815:50de2026-02-16 → 2026-05-12 · 2 obs

● 2026-02-16 21:26:28
● 2026-05-12 16:14:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ir	a.nic.ir, b.nic.ir, c.nic.ir, d.nic.ir	-
maintaincourse.ir	merlin.ns.cloudflare.com, lola.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.205

NS records: merlin.ns.cloudflare.com, lola.ns.cloudflare.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at ir: Error: DNS query timeout: 193.189.123.2 for DNSKEY ir

⏱️ Timing

Total: 4357ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.187.75, 104.21.80.222`
AAAA	2	`2606:4700:3036::6815:50de, 2606:4700:3034::ac43:bb4b`
NS	2	`lola.ns.cloudflare.com, merlin.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lola.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

maintaincourse.ir resolves to four IPs: 2606:4700:3034::ac43:bb4b, 2606:4700:3036::6815:50de, 104.21.80.222 and 172.67.187.75.

Other host names, for instance ottchoralsoc.icomm.ca, scoffertech.digital, zainaitio.live, rstreaming.net and zylbly.com share IP numbers with maintaincourse.ir.

Name Servers

maintaincourse.ir has two name servers: lola.ns.cloudflare.com and merlin.ns.cloudflare.com.

maintaincourse.ir shares the same name server setup as other domains, for example postsitter.de, venetaisolatori.it, lyrae.net, venetaisolatori.com and santechshara.ua.

maintaincourse.ir shares some name servers with other domains, for example uncutmaza.org.in, myhostbd.net, vongbicongnghiep.vn, lqdfx.com and kalorexyntho.sbs.

These name servers are commonly used with the name servers chan.ns.cloudflare.com.

Host names with six IP numbers: lola.ns.cloudflare.com points to: 2606:4700:50::adf5:3a84, 2803:f800:50::6ca2:c084, 2a06:98c1:50::ac40:2084, 108.162.192.132, 172.64.32.132 and 173.245.58.132; merlin.ns.cloudflare.com points to: 2606:4700:58::adf5:3bcd, 2803:f800:50::6ca2:c1cd, 2a06:98c1:50::ac40:21cd, 108.162.193.205, 172.64.33.205 and 173.245.59.205.

maintaincourse.ir - robtex.com