certifyos.com - dns.ninja

`certifyos.com`

DNSSEC	⚠️ Not signed
A	76.76.21.21^{🇺🇸 Amazon76.76.21.0/24 EC2 Prefix}
NS	`ns-540.awsdns-03.net` ⭐
		A	2600:9000:5302:1c00::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-540.awsdns-03.net`
		A	205.251.194.28^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-540.awsdns-03.net`
NS	`ns-1115.awsdns-11.org`
		A	2600:9000:5304:5b00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1115.awsdns-11.org`
		A	205.251.196.91^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1115.awsdns-11.org`
NS	`ns-1839.awsdns-37.co.uk`
		A	2600:9000:5307:2f00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1839.awsdns-37.co.uk`
		A	205.251.199.47^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1839.awsdns-37.co.uk`
NS	`ns-229.awsdns-28.com`
		A	2600:9000:5300:e500::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-229.awsdns-28.com`
		A	205.251.192.229^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-229.awsdns-28.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1b^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f27.1e100.net`
		A	172.253.157.27^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f27.1e100.net`
TXT	`MS=2C95DB8A94DDA0E31A270C9AF001989E498C535`
TXT	`airtable-verification=83fc00f1a4027976ebcfe05fbbcedb0a`
TXT	`anthropic-domain-verification-y9tdzg=lWr1B6BnpnEyj7bGxB4t1ZMLH`
TXT	`apple-domain-verification=C5ARCoxb7WrHOGhL`
TXT	`atlassian-domain-verification=Cx7/Nji0gldU3NnnQMUNawj62VnE9nMUcTy9kfVfgbDWqQI...`
TXT	`atlassian-sending-domain-verification=d8c60223-4fab-4aef-b071-34c0145e1f72`
TXT	`cursor-domain-verification-q4ffx7=6qhvE9CatPnr2Y6WDatwhEa4o`
TXT	`google-site-verification=84f823e7-f20e-4aa3-aebb-93b6fd938e33`
TXT	`google-site-verification=AFi4l4IDNgcA2XmImxUVA59cyZ5v65u54opJ_peoc3s`
TXT	`google-site-verification=S_Ux3dbZ9eYHFfq-mjEk7ZMf4CgPg-LZyPUY78ZuSZs`
TXT	`google-site-verification=XnjLyPnVmo4Uv0VXCZbJK5i-FuyNjwXUnK_JX4qm_xE`
TXT	`google-site-verification=gXM7b_Y0E7qJx6mvtCTh9BFYs6TuhpNrJecz8gXGgK8`
TXT	`google-site-verification=p762uv2CikTo_usgKhGoR5nYA5l6Q4mssCkEwApHIgI`
TXT	`google-site-verification=r1UJ4-srilOhLY4Gw6DqT2sokT6qUnFWIUwBba7rRsI`
TXT	`openai-domain-verification=dv-RdZwueiyuIUll1J1Q7UUkZ4z`
TXT	`pardot1005922=bac531352b7f1b52af2dc9f2a3438217c0986ab4f7243619a2af08545cc698ca`
TXT	`postman-domain-verification=1dd336e06f95914252964d67729bab70af17df451fe0329d4...`
TXT	`slack-domain-verification=0DmXbAO1Q9m18wB8QtRgSplOveUkwUQmV3sTX2JV`
TXT	`v=spf1 include:40166028.spf01.hubspotemail.net include:_spf.google.com includ...`
TXT	`whimsical=081fb2387797ee140fc48f2b5977bedd7b018444`
SOA	`ns-540.awsdns-03.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=1782935931

Subdomains

ng.certifyos.com

www.certifyos.com

Same first word

certifyos.com

Similar names

escortify.com

coryfiset.me

escortify.us

escortify.com.au

sectorify.com

escortify.co.nz

DNS History

10 records (10 active, 0 former)

●NSns-1115.awsdns-11.org2026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

●NSns-1839.awsdns-37.co.uk2026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

●NSns-229.awsdns-28.com2026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

●NSns-540.awsdns-03.net2026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

●MXalt1.aspmx.l.google.com2026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

●MXalt2.aspmx.l.google.com2026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

●MXalt3.aspmx.l.google.com2026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

●MXalt4.aspmx.l.google.com2026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

●MXaspmx.l.google.com2026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

●A76.76.21.212026-03-14 → 2026-07-01 · 2 obs

● 2026-03-14 07:33:10
● 2026-07-01 20:05:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
certifyos.com	ns-229.awsdns-28.com, ns-540.awsdns-03.net, ns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk	2 records

✅ Authoritative Response

Server:205.251.192.229

NS records: ns-229.awsdns-28.com, ns-540.awsdns-03.net, ns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certifyos.com (unsigned zone)

⏱️ Timing

Total: 410ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`76.76.21.21`
NS	4	`ns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk...`
MX	5	`aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)...`
TXT	20	`MS=2C95DB8A94DDA0E31A270C9AF001989E498C5, airtable-verification=83fc00f1a4027976eb...`
SOA	1	`ns-540.awsdns-03.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-229.awsdns-28.com, ns-229.awsdns-28.com)

Analysis

Hierarchy

ng.certifyos.com and www.certifyos.com are both subdomains of certifyos.com.

IP Addresses

certifyos.com resolves to one IP address: 76.76.21.21.

one-stream.io, buddyweb.fr, hopechapel.org and two other host names share IP numbers with certifyos.com.

Name Servers

The authoritative name servers for certifyos.com are ns-229.awsdns-28.com, ns-540.awsdns-03.net, ns-1115.awsdns-11.org and ns-1839.awsdns-37.co.uk.

The name servers of certifyos.com overlap at least partially with those of other domains — among them lhcentgw.biz, enode.com, d8orgbtlsnid2.cloudfront.net and two more.

Each of the four hosts ns-229.awsdns-28.com, ns-540.awsdns-03.net, ns-1115.awsdns-11.org and ns-1839.awsdns-37.co.uk has two IP addresses. ns-229.awsdns-28.com points to 205.251.192.229 and 2600:9000:5300:e500::1. ns-540.awsdns-03.net points to 205.251.194.28 and 2600:9000:5302:1c00::1. ns-1115.awsdns-11.org points to 205.251.196.91 and 2600:9000:5304:5b00::1. ns-1839.awsdns-37.co.uk points to 205.251.199.47 and 2600:9000:5307:2f00::1.

Mail Servers

certifyos.com has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

certifyos.com has at least partial mail server overlap with other domains such as otg.bz, ns500693.ns500765.ns500693.ns500699.ns500734.ns500699.ns500588.ns500699.ns500612.ns500588.ns500612.ns500632.ns500612.ns500578.ns500110.dtrkdll.com, ns500765.ns500734.ns500699.ns500693.ns500693.ns500734.ns500734.ns500693.ns500693.ns500683.ns500683.ns500693.ns500693.ns500110.dtrkdll.com and two more.

These mail servers commonly co-occur with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Hostnames that resolve to two IP addresses:

The A records for aspmx.l.google.com return 172.253.122.27 and 2607:f8b0:4004:c23::1b.

The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1a.

The A records for alt2.aspmx.l.google.com return 172.253.116.26 and 2a00:1450:400b:c02::1a.

The A records for alt3.aspmx.l.google.com return 192.178.223.27 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1b.