`tackoverflow.com`

	CNAME	`exp.gs-cdn.com`
	DNSSEC	⚠️ Not signed
	A	172.65.190.172^{🇺🇸 Cloudflare172.65.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`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=1774816172

Same first word

tackoverflow.com

DNS History

20 records (3 active, 17 former)

○NSa.share-dns.com2026-03-29 → 2026-03-29 · 1 obs

○ 2026-03-29 20:44:18

○NSb.share-dns.net2026-03-29 → 2026-03-29 · 1 obs

○ 2026-03-29 20:44:18

●NSexpire1.gname-dns.com2026-03-29 → 2026-03-29 · 2 obs

○ 2017-04-04 09:17:42
● 2026-03-29 20:44:18

●NSexpire2.gname-dns.com2026-03-29 → 2026-03-29 · 2 obs

○ 2017-04-04 09:17:42
● 2026-03-29 20:44:18

○NSns1.dnsnuts.com2016-01-24 → 2017-04-04 · 4 obs

○ 2015-10-30 13:23:32
● 2016-01-24 19:58:42
● 2017-04-04 09:17:42
○ 2026-03-29 20:44:18

○NSns1.eurodns.com2015-07-03 → 2015-10-30 · 4 obs

● 2015-07-03 05:40:28
● 2015-10-30 13:23:32
○ 2016-01-24 19:58:42
○ 2026-03-29 20:44:18

○NSns1.gname-dns.com2026-03-29 → 2026-03-29 · 1 obs

○ 2026-03-29 20:44:18

○NSns2.dnsnuts.com2016-01-24 → 2017-04-04 · 4 obs

○ 2015-10-30 13:23:32
● 2016-01-24 19:58:42
● 2017-04-04 09:17:42
○ 2026-03-29 20:44:18

○NSns2.eurodns.com2015-07-03 → 2015-10-30 · 4 obs

● 2015-07-03 05:40:28
● 2015-10-30 13:23:32
○ 2016-01-24 19:58:42
○ 2026-03-29 20:44:18

○NSns2.gname-dns.com2026-03-29 → 2026-03-29 · 1 obs

○ 2026-03-29 20:44:18

○NSns3.eurodns.com2015-07-03 → 2015-10-30 · 4 obs

● 2015-07-03 05:40:28
● 2015-10-30 13:23:32
○ 2016-01-24 19:58:42
○ 2026-03-29 20:44:18

○NSns4.eurodns.com2015-07-03 → 2015-10-30 · 4 obs

● 2015-07-03 05:40:28
● 2015-10-30 13:23:32
○ 2016-01-24 19:58:42
○ 2026-03-29 20:44:18

○A146.71.41.2042026-03-29 → 2026-03-29 · 1 obs

○ 2026-03-29 20:44:18

○A167.114.156.2142016-11-27 → 2017-04-04 · 4 obs

○ 2016-04-12 08:42:38
● 2016-11-27 16:49:32
● 2017-04-04 09:17:42
○ 2026-03-29 20:44:18

○A185.53.177.202015-10-30 → 2015-10-30 · 4 obs

○ 2015-07-03 05:40:28
● 2015-10-30 13:23:32
○ 2016-01-24 19:58:42
○ 2026-03-29 20:44:18

○A45.33.241.1662026-03-29 → 2026-03-29 · 1 obs

○ 2026-03-29 20:44:18

○A5.39.99.492016-04-12 → 2016-04-12 · 4 obs

○ 2016-01-24 19:58:42
● 2016-04-12 08:42:38
○ 2016-11-27 16:49:32
○ 2026-03-29 20:44:18

○A5.39.99.522016-01-24 → 2016-01-24 · 4 obs

○ 2015-10-30 13:23:32
● 2016-01-24 19:58:42
○ 2016-04-12 08:42:38
○ 2026-03-29 20:44:18

○A80.92.65.1442015-07-03 → 2015-07-03 · 3 obs

● 2015-07-03 05:40:28
○ 2015-10-30 13:23:32
○ 2026-03-29 20:44:18

●CNAMEexp.gs-cdn.com2026-03-29 → 2026-03-29 · 1 obs

● 2026-03-29 20:44:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
tackoverflow.com	expire1.gname-dns.com, expire2.gname-dns.com	2 records

✅ Authoritative Response

Server:172.64.53.233

NS records: expire1.gname-dns.com, expire2.gname-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tackoverflow.com (unsigned zone)

⏱️ Timing

Total: 503ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`expire1.gname-dns.com, expire2.gname-dns.com`
CNAME	1	`exp.gs-cdn.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (expire1.gname-dns.com, expire2.gname-dns.com)

Analysis

IP Addresses

tackoverflow.com points to a single IP number: 172.65.190.172.

Other host names, for instance 0syn.com and exp.gs-cdn.com, share IP numbers with tackoverflow.com.

tackoverflow.com - robtex.com