www.certifyos.com - robtex.com

www.certifyos.com

CNAMEcname.vercel-dns.com
DNSSEC⚠️ Not signed
A66.33.60.66🇺🇸 Amazon66.33.60.0/24 EC2 Prefix
A76.76.21.142🇺🇸 Amazon76.76.21.0/24 EC2 Prefix
NSns1.vercel-dns-3.com ⭐
A2600:9000:5301:5c00::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-348.awsdns-43.com
A205.251.193.92🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-348.awsdns-43.com
NSns2.vercel-dns-3.com
A2600:9000:5302:9500::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-661.awsdns-18.net
A205.251.194.149🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-661.awsdns-18.net
NSns3.vercel-dns-3.com
A2600:9000:5305:7400::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1396.awsdns-46.org
A205.251.197.116🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1396.awsdns-46.org
NSns4.vercel-dns-3.com
A2600:9000:5307:3c00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1852.awsdns-39.co.uk
A205.251.199.60🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1852.awsdns-39.co.uk
SOAns1.vercel-dns-3.comawsdns-hostmaster@amazon.com serial=1

certifyos.com

DNSSEC⚠️ Not signed
A76.76.21.21🇺🇸 Amazon76.76.21.0/24 EC2 Prefix
NSns-540.awsdns-03.net ⭐
NSns-1115.awsdns-11.org
NSns-1839.awsdns-37.co.uk
NSns-229.awsdns-28.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
TXTMS=2C95DB8A94DDA0E31A270C9AF001989E498C535
TXTairtable-verification=83fc00f1a4027976ebcfe05fbbcedb0a
TXTapple-domain-verification=C5ARCoxb7WrHOGhL
TXTatlassian-domain-verification=Cx7/Nji0gldU3NnnQMUNawj62VnE9nMUcTy9kfVfgbDWqQI...
TXTatlassian-sending-domain-verification=d8c60223-4fab-4aef-b071-34c0145e1f72
TXTcursor-domain-verification-q4ffx7=6qhvE9CatPnr2Y6WDatwhEa4o
TXTgoogle-site-verification=84f823e7-f20e-4aa3-aebb-93b6fd938e33
TXTgoogle-site-verification=AFi4l4IDNgcA2XmImxUVA59cyZ5v65u54opJ_peoc3s
TXTgoogle-site-verification=S_Ux3dbZ9eYHFfq-mjEk7ZMf4CgPg-LZyPUY78ZuSZs
TXTgoogle-site-verification=XnjLyPnVmo4Uv0VXCZbJK5i-FuyNjwXUnK_JX4qm_xE
TXTgoogle-site-verification=gXM7b_Y0E7qJx6mvtCTh9BFYs6TuhpNrJecz8gXGgK8
TXTgoogle-site-verification=p762uv2CikTo_usgKhGoR5nYA5l6Q4mssCkEwApHIgI
TXTgoogle-site-verification=r1UJ4-srilOhLY4Gw6DqT2sokT6qUnFWIUwBba7rRsI
TXTopenai-domain-verification=dv-RdZwueiyuIUll1J1Q7UUkZ4z
TXTpardot1005922=bac531352b7f1b52af2dc9f2a3438217c0986ab4f7243619a2af08545cc698ca
TXTpostman-domain-verification=1dd336e06f95914252964d67729bab70af17df451fe0329d4...
TXTslack-domain-verification=0DmXbAO1Q9m18wB8QtRgSplOveUkwUQmV3sTX2JV
TXTv=spf1 include:40166028.spf01.hubspotemail.net include:_spf.google.com includ...
TXTwhimsical=081fb2387797ee140fc48f2b5977bedd7b018444
SOAns-540.awsdns-03.netawsdns-hostmaster@amazon.com serial=1

Same first word

www.nghean.vn
www.africa.com
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www.pr.gov.br
www.tt
www.ie
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www.blogspot.tw
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www.blogspot.pt
www.saxo
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www.casino
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www.org.ua
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www.dating
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www.hammarfeasta.no
www.blogspot.ro

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DNS History

1 record (1 active, 0 former)

CNAMEcname.vercel-dns.com
●CNAMEcname.vercel-dns.com2026-03-17 → 2026-03-17 · 2 obs
● 2026-03-17 10:20:02
● 2026-03-17 10:20:04

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net...-
certifyos.comns-229.awsdns-28.com, ns-540.awsdns-03.net, ns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk1 record
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-
certifyos.comns-1115.awsdns-11.org, ns-1839.awsdns-37.co.uk, ns-229.awsdns-28.com, ns-540.awsdns-03.net-

✅ Authoritative Response

Server: 205.251.194.28

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certifyos.com (unsigned zone)

⏱️ Timing

Total: 812ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1cname.vercel-dns.com

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-229.awsdns-28.com)

Analysis

IP Addresses

www.certifyos.com points to two IP numbers: 66.33.60.66 and 76.76.21.142.

Other host names, for instance brunopiercamilli.com.ar, naqibigamerz.onuniverse.com, skilli.co, delfia.nl and mkitlab.com share IP numbers with www.certifyos.com.

Name Servers

www.certifyos.com is delegated to four name servers: ns1.vercel-dns-3.com, ns2.vercel-dns-3.com, ns3.vercel-dns-3.com and ns4.vercel-dns-3.com.

www.certifyos.com shares name servers with other domains to some extent, for instance now.sh, vercel.app, vercel-dns-3.com and cname.vercel-dns.com.

Host names with two IPs: ns1.vercel-dns-3.com points to 2600:9000:5301:5c00::1 and 205.251.193.92; ns2.vercel-dns-3.com points to 2600:9000:5302:9500::1 and 205.251.194.149; ns3.vercel-dns-3.com points to 2600:9000:5305:7400::1 and 205.251.197.116; ns4.vercel-dns-3.com points to 2600:9000:5307:3c00::1 and 205.251.199.60.