`extensionlibrary.com`

DNSSEC	⚠️ Not signed
A	52.85.193.16^{🇺🇸 Amazon52.85.192.0/22 - CloudFront TD}
		PTR	`server-52-85-193-16.iad55.r.cloudfront.net`
A	52.85.193.34^{🇺🇸 Amazon52.85.192.0/22 - CloudFront TD}
A	52.85.193.83^{🇺🇸 Amazon52.85.192.0/22 - CloudFront TD}
A	52.85.193.128^{🇺🇸 Amazon52.85.192.0/22 - CloudFront TD}
NS	`ns-586.awsdns-09.net` ⭐
		A	2600:9000:5302:4a00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-586.awsdns-09.net`
		A	205.251.194.74^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-586.awsdns-09.net`
NS	`ns-1407.awsdns-47.org`
		A	2600:9000:5305:7f00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1407.awsdns-47.org`
		A	205.251.197.127^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1407.awsdns-47.org`
NS	`ns-1605.awsdns-08.co.uk`
		A	2600:9000:5306:4500::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1605.awsdns-08.co.uk`
		A	205.251.198.69^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1605.awsdns-08.co.uk`
NS	`ns-167.awsdns-20.com`
		A	2600:9000:5300:a700::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-167.awsdns-20.com`
		A	205.251.192.167^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-167.awsdns-20.com`
SOA	`ns-586.awsdns-09.net`awsdns-hostmaster@amazon.com serial=1

`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=1771291435

Similar names

libraryextension.com

DNS History

13 records (8 active, 5 former)

●NSns-1407.awsdns-47.org2026-03-09 → 2026-03-09 · 3 obs

○ 2016-08-13 11:47:24
● 2026-03-09 19:53:44
● 2026-03-09 19:53:46

●NSns-1605.awsdns-08.co.uk2026-03-09 → 2026-03-09 · 3 obs

○ 2016-08-13 11:47:24
● 2026-03-09 19:53:44
● 2026-03-09 19:53:46

●NSns-167.awsdns-20.com2026-03-09 → 2026-03-09 · 3 obs

○ 2016-08-13 11:47:24
● 2026-03-09 19:53:44
● 2026-03-09 19:53:46

●NSns-586.awsdns-09.net2026-03-09 → 2026-03-09 · 3 obs

○ 2016-08-13 11:47:24
● 2026-03-09 19:53:44
● 2026-03-09 19:53:46

○NSns09.domaincontrol.com2015-06-14 → 2016-04-01 · 4 obs

● 2015-06-14 04:13:26
● 2016-04-01 14:20:14
○ 2016-08-13 11:47:24
○ 2026-03-09 19:53:46

○NSns10.domaincontrol.com2015-06-14 → 2016-04-01 · 4 obs

● 2015-06-14 04:13:26
● 2016-04-01 14:20:14
○ 2016-08-13 11:47:24
○ 2026-03-09 19:53:46

○MXmailstore1.secureserver.net2015-06-14 → 2016-04-01 · 4 obs

● 2015-06-14 04:13:26
● 2016-04-01 14:20:14
○ 2016-08-13 11:47:24
○ 2026-03-09 19:53:46

○MXsmtp.secureserver.net2015-06-14 → 2016-04-01 · 4 obs

● 2015-06-14 04:13:26
● 2016-04-01 14:20:14
○ 2016-08-13 11:47:24
○ 2026-03-09 19:53:46

○A50.63.202.372015-06-14 → 2016-04-01 · 4 obs

● 2015-06-14 04:13:26
● 2016-04-01 14:20:14
○ 2016-08-13 11:47:24
○ 2026-03-09 19:53:46

●A52.85.193.1282026-03-09 → 2026-03-09 · 3 obs

○ 2016-08-13 11:47:24
● 2026-03-09 19:53:44
● 2026-03-09 19:53:46

●A52.85.193.162026-03-09 → 2026-03-09 · 3 obs

○ 2016-08-13 11:47:24
● 2026-03-09 19:53:44
● 2026-03-09 19:53:46

●A52.85.193.342026-03-09 → 2026-03-09 · 3 obs

○ 2016-08-13 11:47:24
● 2026-03-09 19:53:44
● 2026-03-09 19:53:46

●A52.85.193.832026-03-09 → 2026-03-09 · 3 obs

○ 2016-08-13 11:47:24
● 2026-03-09 19:53:44
● 2026-03-09 19:53:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
extensionlibrary.com	ns-167.awsdns-20.com, ns-586.awsdns-09.net, ns-1605.awsdns-08.co.uk, ns-1407.awsdns-47.org	1 record

✅ Authoritative Response

Server: 205.251.198.69

NS records: ns-167.awsdns-20.com, ns-586.awsdns-09.net, ns-1605.awsdns-08.co.uk, ns-1407.awsdns-47.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for extensionlibrary.com (unsigned zone)

⏱️ Timing

Total: 510ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`52.85.193.83, 52.85.193.128...`
NS	4	`ns-1407.awsdns-47.org, ns-1605.awsdns-08.co.uk...`
SOA	1	`ns-586.awsdns-09.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-167.awsdns-20.com)

Analysis

IP Addresses

extensionlibrary.com points to four IP numbers: 52.85.193.16, 52.85.193.34, 52.85.193.83 and 52.85.193.128.

Other host names, for instance cartmena.com, thrivet.net, d1b9bdrgc66bil.cloudfront.net, h-site.com and skinsensationalspa.com share IP numbers with extensionlibrary.com.

Name Servers

extensionlibrary.com is delegated to four name servers: ns-167.awsdns-20.com, ns-586.awsdns-09.net, ns-1407.awsdns-47.org and ns-1605.awsdns-08.co.uk.

extensionlibrary.com shares name servers with other domains at least partially, for instance tbcbank.uz, loyallcanada.com, kvpro.de, lixil.co.th and firmendatenbank.ch.

Host names with two IP numbers:

ns-167.awsdns-20.com resolves to 2600:9000:5300:a700::1 and 205.251.192.167.

ns-586.awsdns-09.net resolves to 2600:9000:5302:4a00::1 and 205.251.194.74.

ns-1407.awsdns-47.org resolves to 2600:9000:5305:7f00::1 and 205.251.197.127.

ns-1605.awsdns-08.co.uk resolves to 2600:9000:5306:4500::1 and 205.251.198.69.

extensionlibrary.com - robtex.com