`specification-writer.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:5e9^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:9abe^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.5.233^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.154.190^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ns1.ubmdns.com` ⭐
		A	2400:cb00:2049:1::a29f:d0^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
			PTR	`ns1.ubmdns.com`
		A	162.159.0.208^{Cloudflare162.159.0.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.ubmdns.com`
		A	2400:cb00:2049:1::a29f:1d0^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
			PTR	`ns2.ubmdns.com`
		A	162.159.1.208^{Cloudflare162.159.1.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.ubmdns.com`
TXT	`v=spf1 mx include:spf.ubm-us.net -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.5.233, 172.67.154.190
		IPv6 hints	2606:4700:3033::6815:5e9, 2606:4700:3037::ac43:9abe
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=116, name=cloudflare-ech.com
SOA	`ns1.ubmdns.com`dns@cloudflare.com serial=2409120646

`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=1784224467

Same first word

specification-writer.net

specification-writer.com

specification-writer.org

DNS History

11 records (6 active, 5 former)

●NSns1.ubmdns.com2019-02-10 → 2026-07-16 · 2 obs

● 2019-02-10 16:12:26
● 2026-07-16 18:11:12

●NSns2.ubmdns.com2019-02-10 → 2026-07-16 · 2 obs

● 2019-02-10 16:12:26
● 2026-07-16 18:11:12

○MXmail1.ubm-us.net2019-02-10 → 2019-02-10 · 3 obs

● 2019-02-10 16:12:26
○ 2026-07-13 10:49:00
○ 2026-07-16 18:11:12

●A104.21.5.2332026-07-13 → 2026-07-16 · 3 obs

○ 2019-02-10 16:12:26
● 2026-07-13 10:49:00
● 2026-07-16 18:11:12

○A104.31.74.2292019-02-10 → 2019-02-10 · 3 obs

● 2019-02-10 16:12:26
○ 2026-07-13 10:49:00
○ 2026-07-16 18:11:12

○A104.31.75.2292019-02-10 → 2019-02-10 · 3 obs

● 2019-02-10 16:12:26
○ 2026-07-13 10:49:00
○ 2026-07-16 18:11:12

●A172.67.154.1902026-07-13 → 2026-07-16 · 3 obs

○ 2019-02-10 16:12:26
● 2026-07-13 10:49:00
● 2026-07-16 18:11:12

○A2606:4700:30::681f:4ae52019-02-10 → 2019-02-10 · 3 obs

● 2019-02-10 16:12:26
○ 2026-07-13 10:49:00
○ 2026-07-16 18:11:12

○A2606:4700:30::681f:4be52019-02-10 → 2019-02-10 · 3 obs

● 2019-02-10 16:12:26
○ 2026-07-13 10:49:00
○ 2026-07-16 18:11:12

●A2606:4700:3033::6815:5e92026-07-13 → 2026-07-16 · 3 obs

○ 2019-02-10 16:12:26
● 2026-07-13 10:49:00
● 2026-07-16 18:11:12

●A2606:4700:3037::ac43:9abe2026-07-13 → 2026-07-16 · 3 obs

○ 2019-02-10 16:12:26
● 2026-07-13 10:49:00
● 2026-07-16 18:11:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, b.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net...	-
specification-writer.com	ns1.ubmdns.com, ns2.ubmdns.com	2 records

✅ Authoritative Response

Server:162.159.1.208

NS records: ns1.ubmdns.com, ns2.ubmdns.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 721ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.154.190, 104.21.5.233`
AAAA	2	`2606:4700:3037::ac43:9abe, 2606:4700:3033::6815:5e9`
NS	2	`ns1.ubmdns.com, ns2.ubmdns.com`
TXT	1	`v=spf1 mx include:spf.ubm-us.net -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`ns1.ubmdns.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.ubmdns.com, ns2.ubmdns.com)

Analysis

IP Addresses

specification-writer.com points to the four IP addresses 104.21.5.233, 172.67.154.190, 2606:4700:3033::6815:5e9 and 2606:4700:3037::ac43:9abe.

quick-foundation.com, ezfrags.ru, litchardtoolhire.wales and two other host names share IP numbers with specification-writer.com.

Name Servers

specification-writer.com is served by two delegated name servers, ns1.ubmdns.com and ns2.ubmdns.com.

specification-writer.com uses the same name servers as several other domains — among them industrialautomationshow.us, brandlicensingnewyork.com, greekshippingsummit.com and two more.

The DNS delegation for specification-writer.com at least partly coincides with that of other domains, unstrung.com being one example.

Each of the two host names carries two IP addresses: ns1.ubmdns.com points to 162.159.0.208 and 2400:cb00:2049:1::a29f:d0, and ns2.ubmdns.com points to 162.159.1.208 and 2400:cb00:2049:1::a29f:1d0.

specification-writer.com - robtex.com