serko.com - dns.ninja

`serko.com`

DNSSEC	⚠️ Not signed
A	198.202.211.1^{🇺🇸 CLOUDFLARESPECTRUM198.202.211.0/24 Webflow}
NS	`ns1-01.azure-dns.com` ⭐
		A	2603:1061:0:700::1^{🇺🇸 Microsoft2603:1000::/25 MICROSOFT}
			PTR	`ns1-01.azure-dns.com`
		A	13.107.236.1^{🇺🇸 Microsoft13.104.0.0/14 MICROSOFT}
			PTR	`ns1-01.azure-dns.com`
NS	`ns2-01.azure-dns.net`
		A	2620:1ec:8ec:700::1^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns2-01.azure-dns.net`
		A	150.171.21.1^{🇺🇸 Microsoft150.171.0.0/16 MICROSOFT}
			PTR	`ns2-01.azure-dns.net`
NS	`ns3-01.azure-dns.org`
		A	2a01:111:4000:700::1^{🇬🇧 Microsoft2a01:111:4000::/36}
			PTR	`ns3-01.azure-dns.org`
		A	204.14.183.1^{🇺🇸 Microsoft204.14.180.0/22}
			PTR	`ns3-01.azure-dns.org`
NS	`ns4-01.azure-dns.info`
		A	2620:1ec:bda:700::1^{🇺🇸 Microsoft2620:1ec::/36 MICROSOFT}
			PTR	`ns4-01.azure-dns.info`
		A	208.84.5.1^{🇺🇸 Microsoft208.84.0.0/21 MICROSOFT}
			PTR	`ns4-01.azure-dns.info`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c07::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bc-in-f27.1e100.net`
		A	2607:f8b0:4004:c09::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bh-in-f26.1e100.net`
		A	2607:f8b0:4004:c23::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	2607:f8b0:4004:c23::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`yuiadrs-in-f27.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
		A	172.253.122.26^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f26.1e100.net`
		A	172.253.122.27^{🇺🇸 Google172.253.122.0/24}
			PTR	`bh-in-f27.1e100.net`
		A	192.178.155.26^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f26.1e100.net`
		A	192.178.155.27^{🇺🇸 Google192.178.155.0/24}
			PTR	`yuiadrs-in-f27.1e100.net`
TXT	`v=spf1 include:c5s3ajm0vx.powerspf.com ~all`
TXT	`"MS=ms57913075"`
TXT	`"knowbe4-site-verification=0238d1a2d50560d598e2a5580b3a4884"`
TXT	`"serkositeredirector.azurewebsites.net"`
TXT	`"google-site-verification=TDzNxdtMVbGs7QBXNqhAOK8rLS5J1xuId_IvwRORqFc"`
TXT	`"atlassian-domain-verification=AW6rcR3TvcPwuq/9DmVhM+wJ3qR1nNS43jDOXETb3rEIjT...`
TXT	`"ln6zy10ym0gqx3knm5jlqk5tn7rxr1bv"`
TXT	`"apple-domain-verification=RXjOvqJJPsPiAh3G"`
TXT	`"6qrd7z75nqmhpxd480k4kffznbbdzc20"`
TXT	`"miro-verification=dc479f894f6a8fa1d0d16518c09583109a68556d"`
TXT	`"adobe-idp-site-verification=65746c2dd18e770990aaf8a938aa30e20f30de48e9377a89...`
TXT	`"include:bf07x.hubspotemail.net"`
TXT	`"fdrgsxh7k7f68x9pkj6zdtl4z0w2xrqz"`
TXT	`"f57z7h50vgq5rjnfnjd7s2rrxrgyqdby"`
TXT	`cdn.webflow.com.`
TXT	`google-site-verification=tBuTu6dUJOPRy6IEDAwsRSt3mt4B-p_8LNhDHUfM_6M`
TXT	`pendo-domain-verification=7561bfdb-ac05-4b29-acc9-6eb79ca45624`
TXT	`_uqzln55apsispgtmwnxnfuo4jjkzwhe`
TXT	`new-relic-domain-verification=fea2425735f248a0a3ba1d6188e372d4`
TXT	`zoho-verification=zb19063064.zmverify.zoho.in`
TXT	`perplexity-ai-domain-verification-p0vnek=zXBVU9364VKkyjG2VQsSqbosS`
TXT	`google-site-verification=uG3W9yPoZBeiWZI6Hzws-FjDynab8OcUGag8ZW2AdM8`
TXT	`_lebuuo84y84lwz7zjlh4dwmxwyl8cso`
TXT	`anthropic-domain-verification-4dq12g=blw6f3xdLRQLLcMoNxEjNlDrB`
TXT	`cursor-domain-verification-n2wsmz=Ca90MhkyjrcDzuA6A3IXEM6VK`
TXT	`plain-domain-verification-8mbkxf=4fVsJzeHwh4etzLnOBcsKtWs8`
TXT	`_pbt287hhfu45aq3l6ts35ny3hkyopcu`
SOA	`ns1-01.azure-dns.com`azuredns-hostmaster@microsoft.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=1786302209

rank #986530 globally
rank #425453 in the tld

Subdomains

www.serko.com

mail.serko.com

Same first word

serko.pl

serko.net

serko.ca

serko.com.ua

serko.ru

serko.com

serko.travel

serko.nyc

serko.de

serko.org

serko.co.nz

serko.info

serko.ro

serko.com.tr

Similar names

keros.de

sorek.com

koser.me

ksero.net.pl

kores.or.kr

skreo.net

koers.org

kores.fi

resko.shop

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okres.com

roske.us

ksero.biz.pl

kreos.pl

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kroes.de

kores.ru

erkos.net

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ersok.net

kroes.email

keros.ro

kesro.de

koers.cc

koser.us

okres.cz

keros.biz

ekros.com

orkes.de

skore.me

ersok.mobi

okser.com.tr

kores.at

okser.pl

keros.com.br

orkes.eu

oerks.net

sorke.eu

skero.de

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krose.com

rekso.org

resko.it

sorek.se

okser.cz

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keros.es

koers.net

keros.be

reoks.com

koser.info

rekos.jp

kreos.com

okers.com

koers.be

ksero.pl

ekros.github.io

resko.ddns.net

kores.xyz

kreos.lu

okser.com.br

korse.de

eroks.net

serok.com

koers.com

kores.hu

roeks.nl

skore.co

kores.it

erkos.ee

roesk.com

eskor.com

erkos.it

koser.de

rekos.org

kreos.co.uk

rekos.cz

korse.com

koers.no

orkes.io

krose.in

kesro.com

kores.com.mx

koers.eu

kroes.eu

oresk.com

kores.cl

kores.net

erkos.de

DNS History

20 records (6 active, 14 former)

●NSns1-01.azure-dns.com2026-02-26 → 2026-08-09 · 3 obs

○ 2017-04-18 20:06:12
● 2026-02-26 10:35:12
● 2026-08-09 19:28:44

○NSns1.p30.dynect.net2015-07-16 → 2017-04-18 · 4 obs

● 2015-07-16 20:11:10
● 2017-04-18 20:06:12
○ 2026-02-26 10:35:12
○ 2026-08-09 19:28:44

●NSns2-01.azure-dns.net2026-02-26 → 2026-08-09 · 3 obs

○ 2017-04-18 20:06:12
● 2026-02-26 10:35:12
● 2026-08-09 19:28:44

○NSns2.p30.dynect.net2015-07-16 → 2017-04-18 · 4 obs

● 2015-07-16 20:11:10
● 2017-04-18 20:06:12
○ 2026-02-26 10:35:12
○ 2026-08-09 19:28:44

●NSns3-01.azure-dns.org2026-02-26 → 2026-08-09 · 3 obs

○ 2017-04-18 20:06:12
● 2026-02-26 10:35:12
● 2026-08-09 19:28:44

○NSns3.p30.dynect.net2015-07-16 → 2017-04-18 · 4 obs

● 2015-07-16 20:11:10
● 2017-04-18 20:06:12
○ 2026-02-26 10:35:12
○ 2026-08-09 19:28:44

●NSns4-01.azure-dns.info2026-02-26 → 2026-08-09 · 3 obs

○ 2017-04-18 20:06:12
● 2026-02-26 10:35:12
● 2026-08-09 19:28:44

○NSns4.p30.dynect.net2015-07-16 → 2017-04-18 · 4 obs

● 2015-07-16 20:11:10
● 2017-04-18 20:06:12
○ 2026-02-26 10:35:12
○ 2026-08-09 19:28:44

○MXglobala.mxsave.com2015-07-16 → 2016-04-30 · 4 obs

● 2015-07-16 20:11:10
● 2016-04-30 16:03:36
○ 2016-10-29 12:53:48
○ 2026-08-09 19:28:44

○MXglobalb.mxsave.com2015-07-16 → 2016-04-30 · 4 obs

● 2015-07-16 20:11:10
● 2016-04-30 16:03:36
○ 2016-10-29 12:53:48
○ 2026-08-09 19:28:44

○MXmail.serko.com2016-01-17 → 2016-04-30 · 5 obs

○ 2015-09-14 09:08:18
● 2016-01-17 03:30:32
● 2016-04-30 16:03:36
○ 2016-10-29 12:53:48
○ 2026-08-09 19:28:44

○MXserko-com.mail.protection.outlook.com2015-07-16 → 2017-04-18 · 6 obs

● 2015-07-16 20:11:10
○ 2015-09-14 09:08:18
● 2016-10-29 12:53:48
● 2017-04-18 20:06:12
○ 2026-02-26 10:35:12
○ 2026-08-09 19:28:44

●MXsmtp.google.com2026-02-26 → 2026-08-09 · 3 obs

○ 2017-04-18 20:06:12
● 2026-02-26 10:35:12
● 2026-08-09 19:28:44

○MXsmtp.serko.com2015-07-16 → 2015-09-14 · 4 obs

● 2015-07-16 20:11:10
● 2015-09-14 09:08:18
○ 2016-01-17 03:30:32
○ 2026-08-09 19:28:44

○A138.91.33.62015-07-16 → 2015-09-14 · 4 obs

● 2015-07-16 20:11:10
● 2015-09-14 09:08:18
○ 2016-01-17 03:30:32
○ 2026-08-09 19:28:44

●A198.202.211.12026-02-26 → 2026-08-09 · 3 obs

○ 2017-04-18 20:06:12
● 2026-02-26 10:35:12
● 2026-08-09 19:28:44

○A216.146.46.102016-01-17 → 2017-04-18 · 5 obs

○ 2015-09-14 09:08:18
● 2016-01-17 03:30:32
● 2017-04-18 20:06:12
○ 2026-02-26 10:35:12
○ 2026-08-09 19:28:44

○A216.146.46.112016-01-17 → 2017-04-18 · 5 obs

○ 2015-09-14 09:08:18
● 2016-01-17 03:30:32
● 2017-04-18 20:06:12
○ 2026-02-26 10:35:12
○ 2026-08-09 19:28:44

○PTRmail.serko.com2017-04-18 → 2017-04-18 · 3 obs

● 2017-04-18 20:06:12
○ 2026-02-26 10:35:12
○ 2026-08-09 19:28:44

○PTRsmtp.serko.com2017-04-18 → 2017-04-18 · 3 obs

● 2017-04-18 20:06:12
○ 2026-02-26 10:35:12
○ 2026-08-09 19:28:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
serko.com	ns1-01.azure-dns.com, ns2-01.azure-dns.net, ns3-01.azure-dns.org, ns4-01.azure-dns.info	2 records

✅ Authoritative Response

Server:208.84.5.1

NS records: ns1-01.azure-dns.com, ns2-01.azure-dns.net, ns3-01.azure-dns.org, ns4-01.azure-dns.info

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for serko.com (unsigned zone)

⏱️ Timing

Total: 1515ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`198.202.211.1`
NS	4	`ns1-01.azure-dns.com, ns2-01.azure-dns.net...`
MX	1	`smtp.google.com (pri: 5)`
TXT	27	`v=spf1 include:c5s3ajm0vx.powerspf.com ~, "MS=ms57913075"...`
SOA	1	`ns1-01.azure-dns.com azuredns-hostmaster`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1-01.azure-dns.com, ns1-01.azure-dns.com)

Analysis

Hierarchy

serko.com is the parent domain of www.serko.com and mail.serko.com.

IP Addresses

serko.com points to a single IP number: 198.202.211.1.

Additional host names — ledgercrm.com, betterdigital.com, casadelvalle.org and two others — share IP numbers with serko.com.

Name Servers

serko.com has four authoritative name servers: ns1-01.azure-dns.com, ns4-01.azure-dns.info, ns2-01.azure-dns.net and ns3-01.azure-dns.org.

There is at least partial name server overlap between serko.com and other domains — microsoftlearningcommunity.net, queco.com.br, azure.online and two more among them.

All four hostnames — ns1-01.azure-dns.com, ns4-01.azure-dns.info, ns2-01.azure-dns.net and ns3-01.azure-dns.org — resolve to two IP numbers apiece: ns1-01.azure-dns.com to 13.107.236.1 and 2603:1061:0:700::1; ns4-01.azure-dns.info to 208.84.5.1 and 2620:1ec:bda:700::1; ns2-01.azure-dns.net to 150.171.21.1 and 2620:1ec:8ec:700::1; ns3-01.azure-dns.org to 204.14.183.1 and 2a01:111:4000:700::1.

Mail Servers

serko.com has one mail server: smtp.google.com.

serko.com shares the same mail server setup as other domains, including sweatdecks.com, rpctrk.com, 1wbzba.life and two others.

serko.com shares mail servers — at least in part — with other domains, including gibs.edu.in, loanplace.co.nz, cuin.edu.mx and two others.

These mail servers are frequently paired with the mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and alt4.aspmx.l.google.com.

smtp.google.com points to 9 IP numbers: 172.253.62.27, 172.253.122.26, 172.253.122.27 and 6 other.