`englishofcourse.com`

DNSSEC	⚠️ Not signed
A	157.245.142.131^{🇺🇸 DIGITALOCEAN157.245.128.0/20 DigitalOcean}
NS	`ns1.digitalocean.com` ⭐
		A	2606:4700:52::ac40:34d2^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
		A	172.64.52.210^{🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns1.digitalocean.com`
NS	`ns2.digitalocean.com`
		A	2606:4700:5a::ac40:3515^{🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
		A	172.64.53.21^{🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns2.digitalocean.com`
NS	`ns3.digitalocean.com`
		A	2606:4700:52::ac40:31d1^{🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
		A	172.64.49.209^{🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ns3.digitalocean.com`
SOA	`ns1.digitalocean.com`hostmaster@englishofcourse.com serial=1759268665

`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=1776008847

Subdomains

www.englishofcourse.com

Same first word

englishofcourse.com

DNS History

11 records (4 active, 7 former)

○NSns07.domaincontrol.com2018-01-09 → 2018-01-09 · 4 obs

○ 2017-01-24 18:06:32
● 2018-01-09 04:22:06
○ 2026-02-21 22:11:14
○ 2026-04-12 16:11:04

○NSns08.domaincontrol.com2018-01-09 → 2018-01-09 · 4 obs

○ 2017-01-24 18:06:32
● 2018-01-09 04:22:06
○ 2026-02-21 22:11:14
○ 2026-04-12 16:11:04

●NSns1.digitalocean.com2026-02-21 → 2026-04-12 · 3 obs

○ 2018-01-09 04:22:06
● 2026-02-21 22:11:14
● 2026-04-12 16:11:04

○NSns163.ehosts.com2017-01-24 → 2017-01-24 · 3 obs

● 2017-01-24 18:06:32
○ 2018-01-09 04:22:06
○ 2026-04-12 16:11:04

○NSns164.ehosts.com2017-01-24 → 2017-01-24 · 3 obs

● 2017-01-24 18:06:32
○ 2018-01-09 04:22:06
○ 2026-04-12 16:11:04

●NSns2.digitalocean.com2026-02-21 → 2026-04-12 · 3 obs

○ 2018-01-09 04:22:06
● 2026-02-21 22:11:14
● 2026-04-12 16:11:04

●NSns3.digitalocean.com2026-02-21 → 2026-04-12 · 3 obs

○ 2018-01-09 04:22:06
● 2026-02-21 22:11:14
● 2026-04-12 16:11:04

○MXmail.englishofcourse.com2017-01-24 → 2018-01-09 · 4 obs

● 2017-01-24 18:06:32
● 2018-01-09 04:22:06
○ 2026-02-21 22:11:14
○ 2026-04-12 16:11:04

○A108.167.137.2272017-01-24 → 2017-01-24 · 3 obs

● 2017-01-24 18:06:32
○ 2018-01-09 04:22:06
○ 2026-04-12 16:11:04

●A157.245.142.1312026-02-21 → 2026-04-12 · 3 obs

○ 2018-01-09 04:22:06
● 2026-02-21 22:11:14
● 2026-04-12 16:11:04

○A166.62.73.652018-01-09 → 2018-01-09 · 4 obs

○ 2017-01-24 18:06:32
● 2018-01-09 04:22:06
○ 2026-02-21 22:11:14
○ 2026-04-12 16:11:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net...	-
englishofcourse.com	ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com	3 records

✅ Authoritative Response

Server:172.64.52.210

NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for englishofcourse.com (unsigned zone)

⏱️ Timing

Total: 112ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.245.142.131`
NS	3	`ns2.digitalocean.com, ns1.digitalocean.com...`
SOA	1	`ns1.digitalocean.com hostmaster.englisho`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com)

Analysis

Hierarchy

englishofcourse.com is the parent of www.englishofcourse.com.

IP Addresses

englishofcourse.com points to IP number 157.245.142.131.

Name Servers

The delegation for englishofcourse.com is handled by three name servers: ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.

englishofcourse.com shares name servers with other domains at least partially, for example mhndz.com, burnsweb.net, 50.245.157.in-addr.arpa, deltimes.com and glaceon.social.

Host names with two IPs:

ns1.digitalocean.com points to 2606:4700:52::ac40:34d2 and 172.64.52.210

ns2.digitalocean.com points to 2606:4700:5a::ac40:3515 and 172.64.53.21

ns3.digitalocean.com points to 2606:4700:52::ac40:31d1 and 172.64.49.209

englishofcourse.com - robtex.com