optimalcheckout.com - dns.ninja

optimalcheckout.com

DNSSEC⚠️ Not signed
A18.200.36.58🇮🇪 Amazon18.200.0.0/16 EC2 DUB prefix
PTRec2-18-200-36-58.eu-west-1.compute.amazonaws.com
A34.254.145.220🇮🇪 Amazon34.248.0.0/13 EC2 DUB prefix
A52.19.105.213🇮🇪 Amazon52.18.0.0/15 EC2 DUB prefix
NSns-1774.awsdns-29.co.uk ⭐
A2600:9000:5306:ee00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront
PTRns-1774.awsdns-29.co.uk
A205.251.198.238🇺🇸 Amazon205.251.198.0/24 prefix
PTRns-1774.awsdns-29.co.uk
NSns-1090.awsdns-08.org
A2600:9000:5304:4200::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront
PTRns-1090.awsdns-08.org
A205.251.196.66🇺🇸 Amazon205.251.196.0/24 prefix
PTRns-1090.awsdns-08.org
NSns-212.awsdns-26.com
A2600:9000:5300:d400::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront
PTRns-212.awsdns-26.com
A205.251.192.212🇺🇸 Amazon205.251.192.0/24 prefix
PTRns-212.awsdns-26.com
NSns-519.awsdns-00.net
A2600:9000:5302:700::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-519.awsdns-00.net
A205.251.194.7🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-519.awsdns-00.net
MXmxz1.klarna.com ⭐
A52.30.236.203🇮🇪 Amazon52.30.0.0/15 EC2 DUB prefix
PTRec2-52-30-236-203.eu-west-1.compute.amazonaws.com
MXmxz2.klarna.com ⭐
A54.73.174.245🇮🇪 Amazon54.73.0.0/16 EC2 DUB prefix
PTRec2-54-73-174-245.eu-west-1.compute.amazonaws.com
MXmxz3.klarna.com ⭐
A3.73.181.240🇩🇪 Amazon3.64.0.0/12 EC2 FRA Prefix
PTRec2-3-73-181-240.eu-central-1.compute.amazonaws.com
MXmxz4.klarna.com(20)
A35.156.176.213🇩🇪 Amazon35.156.0.0/14 EC2 FRA prefix
PTRec2-35-156-176-213.eu-central-1.compute.amazonaws.com
MXmxz5.klarna.com(20)
MXmxz6.klarna.com(20)
TXTv=spf1 include:klarna.com -all
SOAns-1774.awsdns-29.co.ukawsdns-hostmaster@amazon.com serial=1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1786570779

Same first word

optimalcheckout.com
optimalcheckout.co.uk
optimalcheckout.dk
optimalcheckout.se
optimalcheckout.nl

DNS History

64 records (13 active, 51 former)

20162017201820192020202120222023202420252026NSns-1090.awsdns-08.orgns-1774.awsdns-29.co.ukns-212.awsdns-26.comns-519.awsdns-00.netns1.nameisp.infons2.nameisp.infoMXmxz1.klarna.commxz2.klarna.commxz3.klarna.commxz4.klarna.commxz5.klarna.commxz6.klarna.comA18.200.36.5834.254.145.22052.19.105.213108.128.228.155108.132.131.240108.132.76.22518.200.205.7518.200.64.1213.248.79.14934.240.219.24634.242.146.17334.242.179.4334.242.36.9734.251.251.20934.251.96.4234.252.55.10234.253.12.17534.253.151.734.255.228.17446.137.76.2652.16.49.11552.19.166.3052.19.248.24052.208.181.4552.208.218.14452.208.243.11852.209.160.9052.211.169.4352.213.58.7052.213.99.2552.215.79.9252.31.21.15252.31.3.14552.48.12.4752.49.232.21454.170.212.6754.171.244.12954.194.90.654.216.182.4054.217.137.14154.228.234.22054.246.17.25454.72.1.19954.76.50.1054.78.156.7654.78.220.13463.33.12.7863.33.17.14563.33.228.5863.34.155.18763.34.66.16463.35.59.39
●NSns-1090.awsdns-08.org2026-02-24 → 2026-08-12 · 3 obs
○ 2016-03-29 12:25:20
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
●NSns-1774.awsdns-29.co.uk2026-02-24 → 2026-08-12 · 3 obs
○ 2016-03-29 12:25:20
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
●NSns-212.awsdns-26.com2026-02-24 → 2026-08-12 · 3 obs
○ 2016-03-29 12:25:20
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
●NSns-519.awsdns-00.net2026-02-24 → 2026-08-12 · 3 obs
○ 2016-03-29 12:25:20
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
○NSns1.nameisp.info2015-06-03 → 2016-03-29 · 4 obs
● 2015-06-03 00:02:06
● 2016-03-29 12:25:20
○ 2026-02-24 01:09:54
○ 2026-08-12 22:07:06
○NSns2.nameisp.info2015-06-03 → 2016-03-29 · 4 obs
● 2015-06-03 00:02:06
● 2016-03-29 12:25:20
○ 2026-02-24 01:09:54
○ 2026-08-12 22:07:06
●MXmxz1.klarna.com2026-02-24 → 2026-08-12 · 2 obs
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
●MXmxz2.klarna.com2026-02-24 → 2026-08-12 · 2 obs
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
●MXmxz3.klarna.com2026-02-24 → 2026-08-12 · 2 obs
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
●MXmxz4.klarna.com2026-02-24 → 2026-08-12 · 2 obs
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
●MXmxz5.klarna.com2026-02-24 → 2026-08-12 · 2 obs
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
●MXmxz6.klarna.com2026-02-24 → 2026-08-12 · 2 obs
● 2026-02-24 01:09:54
● 2026-08-12 22:07:06
○A108.128.228.1552026-02-24 → 2026-08-12 · 2 obs
○ 2026-02-24 01:09:54
○ 2026-08-12 22:07:06
○A108.132.131.2402026-05-22 → 2026-06-01 · 5 obs
○ 2026-05-09 22:44:40
● 2026-05-22 15:35:18
● 2026-06-01 15:27:56
○ 2026-06-04 14:40:50
○ 2026-08-12 22:07:06
○A108.132.76.2252026-06-20 → 2026-06-20 · 4 obs
○ 2026-06-17 21:42:26
● 2026-06-20 11:44:14
○ 2026-07-23 17:36:32
○ 2026-08-12 22:07:06
○A18.200.205.752026-03-09 → 2026-03-09 · 4 obs
○ 2026-02-24 01:09:54
● 2026-03-09 23:16:32
○ 2026-03-17 12:00:32
○ 2026-08-12 22:07:06
●A18.200.36.582026-08-07 → 2026-08-12 · 3 obs
○ 2026-08-03 20:25:14
● 2026-08-07 12:05:16
● 2026-08-12 22:07:06
○A18.200.64.1212026-03-17 → 2026-03-23 · 5 obs
○ 2026-03-09 23:16:32
● 2026-03-17 12:00:32
● 2026-03-23 20:58:32
○ 2026-04-05 02:10:26
○ 2026-08-12 22:07:06
○A3.248.79.1492026-08-03 → 2026-08-03 · 4 obs
○ 2026-07-23 17:36:32
● 2026-08-03 20:25:14
○ 2026-08-07 12:05:16
○ 2026-08-12 22:07:06
○A34.240.219.2462026-05-09 → 2026-05-09 · 5 obs
○ 2026-05-08 14:32:38
● 2026-05-09 20:25:48
● 2026-05-09 22:44:40
○ 2026-05-22 15:35:18
○ 2026-08-12 22:07:06
○A34.242.146.1732026-06-12 → 2026-06-17 · 5 obs
○ 2026-06-10 19:58:52
● 2026-06-12 07:29:54
● 2026-06-17 21:42:26
○ 2026-06-20 11:44:14
○ 2026-08-12 22:07:06
○A34.242.179.432026-07-23 → 2026-07-23 · 4 obs
○ 2026-06-20 11:44:14
● 2026-07-23 17:36:32
○ 2026-08-03 20:25:14
○ 2026-08-12 22:07:06
○A34.242.36.972026-04-28 → 2026-04-28 · 4 obs
○ 2026-04-26 12:38:38
● 2026-04-28 04:13:06
○ 2026-05-04 00:23:32
○ 2026-08-12 22:07:06
○A34.251.251.2092026-07-23 → 2026-07-23 · 4 obs
○ 2026-06-20 11:44:14
● 2026-07-23 17:36:32
○ 2026-08-03 20:25:14
○ 2026-08-12 22:07:06
○A34.251.96.422026-07-23 → 2026-07-23 · 4 obs
○ 2026-06-20 11:44:14
● 2026-07-23 17:36:32
○ 2026-08-03 20:25:14
○ 2026-08-12 22:07:06
○A34.252.55.1022026-05-29 → 2026-06-04 · 5 obs
○ 2026-05-22 15:35:18
● 2026-05-29 12:51:12
● 2026-06-04 14:40:50
○ 2026-06-06 04:27:16
○ 2026-08-12 22:07:06
○A34.253.12.1752026-04-28 → 2026-04-28 · 4 obs
○ 2026-04-26 12:38:38
● 2026-04-28 04:13:06
○ 2026-05-04 00:23:32
○ 2026-08-12 22:07:06
○A34.253.151.72026-02-24 → 2026-02-24 · 3 obs
● 2026-02-24 01:09:54
○ 2026-03-09 23:16:32
○ 2026-08-12 22:07:06
●A34.254.145.2202026-08-07 → 2026-08-12 · 3 obs
○ 2026-08-03 20:25:14
● 2026-08-07 12:05:16
● 2026-08-12 22:07:06
○A34.255.228.1742026-05-04 → 2026-05-09 · 5 obs
○ 2026-04-28 04:13:06
● 2026-05-04 00:23:32
● 2026-05-09 22:44:40
○ 2026-05-22 15:35:18
○ 2026-08-12 22:07:06
○A46.137.76.262026-03-17 → 2026-03-17 · 4 obs
○ 2026-03-09 23:16:32
● 2026-03-17 12:00:32
○ 2026-03-23 20:58:32
○ 2026-08-12 22:07:06
○A52.16.49.1152026-05-22 → 2026-05-30 · 5 obs
○ 2026-05-09 22:44:40
● 2026-05-22 15:35:18
● 2026-05-30 21:22:16
○ 2026-06-01 15:27:56
○ 2026-08-12 22:07:06
●A52.19.105.2132026-08-07 → 2026-08-12 · 3 obs
○ 2026-08-03 20:25:14
● 2026-08-07 12:05:16
● 2026-08-12 22:07:06
○A52.19.166.302026-05-04 → 2026-05-08 · 5 obs
○ 2026-04-28 04:13:06
● 2026-05-04 00:23:32
● 2026-05-08 14:32:38
○ 2026-05-09 20:25:48
○ 2026-08-12 22:07:06
○A52.19.248.2402026-04-08 → 2026-04-08 · 4 obs
○ 2026-04-05 02:10:26
● 2026-04-08 09:07:36
○ 2026-04-25 22:47:02
○ 2026-08-12 22:07:06
○A52.208.181.452026-06-10 → 2026-06-17 · 5 obs
○ 2026-06-10 04:44:02
● 2026-06-10 19:58:52
● 2026-06-17 21:42:26
○ 2026-06-20 11:44:14
○ 2026-08-12 22:07:06
○A52.208.218.1442026-03-23 → 2026-04-05 · 5 obs
○ 2026-03-17 12:00:32
● 2026-03-23 20:58:32
● 2026-04-05 02:10:26
○ 2026-04-08 09:07:36
○ 2026-08-12 22:07:06
○A52.208.243.1182026-04-28 → 2026-04-28 · 4 obs
○ 2026-04-26 12:38:38
● 2026-04-28 04:13:06
○ 2026-05-04 00:23:32
○ 2026-08-12 22:07:06
○A52.209.160.902026-02-24 → 2026-02-24 · 3 obs
● 2026-02-24 01:09:54
○ 2026-03-09 23:16:32
○ 2026-08-12 22:07:06
○A52.211.169.432026-03-23 → 2026-04-05 · 5 obs
○ 2026-03-17 12:00:32
● 2026-03-23 20:58:32
● 2026-04-05 02:10:26
○ 2026-04-08 09:07:36
○ 2026-08-12 22:07:06
○A52.213.58.702026-08-03 → 2026-08-03 · 4 obs
○ 2026-07-23 17:36:32
● 2026-08-03 20:25:14
○ 2026-08-07 12:05:16
○ 2026-08-12 22:07:06
○A52.213.99.252026-06-15 → 2026-06-17 · 5 obs
○ 2026-06-15 03:51:22
● 2026-06-15 12:22:58
● 2026-06-17 21:42:26
○ 2026-06-20 11:44:14
○ 2026-08-12 22:07:06
○A52.215.79.922026-06-08 → 2026-06-15 · 5 obs
○ 2026-06-06 04:27:16
● 2026-06-08 16:59:36
● 2026-06-15 03:51:22
○ 2026-06-15 12:22:58
○ 2026-08-12 22:07:06
○A52.31.21.1522026-04-08 → 2026-04-08 · 4 obs
○ 2026-04-05 02:10:26
● 2026-04-08 09:07:36
○ 2026-04-25 22:47:02
○ 2026-08-12 22:07:06
○A52.31.3.1452026-04-25 → 2026-04-26 · 5 obs
○ 2026-04-08 09:07:36
● 2026-04-25 22:47:02
● 2026-04-26 12:38:38
○ 2026-04-28 04:13:06
○ 2026-08-12 22:07:06
○A52.48.12.472026-03-09 → 2026-03-09 · 4 obs
○ 2026-02-24 01:09:54
● 2026-03-09 23:16:32
○ 2026-03-17 12:00:32
○ 2026-08-12 22:07:06
○A52.49.232.2142026-06-20 → 2026-06-20 · 4 obs
○ 2026-06-17 21:42:26
● 2026-06-20 11:44:14
○ 2026-07-23 17:36:32
○ 2026-08-12 22:07:06
○A54.170.212.672026-08-03 → 2026-08-03 · 4 obs
○ 2026-07-23 17:36:32
● 2026-08-03 20:25:14
○ 2026-08-07 12:05:16
○ 2026-08-12 22:07:06
○A54.171.244.1292026-06-04 → 2026-06-10 · 5 obs
○ 2026-06-01 15:27:56
● 2026-06-04 14:40:50
● 2026-06-10 04:44:02
○ 2026-06-10 19:58:52
○ 2026-08-12 22:07:06
○A54.194.90.62026-04-25 → 2026-04-26 · 5 obs
○ 2026-04-08 09:07:36
● 2026-04-25 22:47:02
● 2026-04-26 12:38:38
○ 2026-04-28 04:13:06
○ 2026-08-12 22:07:06
○A54.216.182.402026-06-06 → 2026-06-10 · 5 obs
○ 2026-06-04 14:40:50
● 2026-06-06 04:27:16
● 2026-06-10 19:58:52
○ 2026-06-12 07:29:54
○ 2026-08-12 22:07:06
○A54.217.137.1412026-04-05 → 2026-04-05 · 4 obs
○ 2026-03-23 20:58:32
● 2026-04-05 02:10:26
○ 2026-04-08 09:07:36
○ 2026-08-12 22:07:06
○A54.228.234.2202026-05-22 → 2026-05-22 · 4 obs
○ 2026-05-09 22:44:40
● 2026-05-22 15:35:18
○ 2026-05-29 12:51:12
○ 2026-08-12 22:07:06
○A54.246.17.2542026-04-08 → 2026-04-08 · 4 obs
○ 2026-04-05 02:10:26
● 2026-04-08 09:07:36
○ 2026-04-25 22:47:02
○ 2026-08-12 22:07:06
○A54.72.1.1992026-05-04 → 2026-05-04 · 5 obs
○ 2026-04-28 04:13:06
● 2026-05-04 00:23:32
● 2026-05-04 21:46:54
○ 2026-05-08 14:32:38
○ 2026-08-12 22:07:06
○A54.76.50.102026-02-24 → 2026-02-24 · 3 obs
● 2026-02-24 01:09:54
○ 2026-03-09 23:16:32
○ 2026-08-12 22:07:06
○A54.78.156.762026-06-20 → 2026-06-20 · 4 obs
○ 2026-06-17 21:42:26
● 2026-06-20 11:44:14
○ 2026-07-23 17:36:32
○ 2026-08-12 22:07:06
○A54.78.220.1342026-04-25 → 2026-04-26 · 5 obs
○ 2026-04-08 09:07:36
● 2026-04-25 22:47:02
● 2026-04-26 12:38:38
○ 2026-04-28 04:13:06
○ 2026-08-12 22:07:06
○A63.33.12.782026-03-09 → 2026-03-09 · 4 obs
○ 2026-02-24 01:09:54
● 2026-03-09 23:16:32
○ 2026-03-17 12:00:32
○ 2026-08-12 22:07:06
○A63.33.17.1452026-06-01 → 2026-06-06 · 5 obs
○ 2026-05-30 21:22:16
● 2026-06-01 15:27:56
● 2026-06-06 04:27:16
○ 2026-06-08 16:59:36
○ 2026-08-12 22:07:06
○A63.33.228.582026-02-24 → 2026-08-12 · 2 obs
○ 2026-02-24 01:09:54
○ 2026-08-12 22:07:06
○A63.34.155.1872026-02-24 → 2026-08-12 · 2 obs
○ 2026-02-24 01:09:54
○ 2026-08-12 22:07:06
○A63.34.66.1642026-05-08 → 2026-05-09 · 5 obs
○ 2026-05-04 21:46:54
● 2026-05-08 14:32:38
● 2026-05-09 22:44:40
○ 2026-05-22 15:35:18
○ 2026-08-12 22:07:06
○A63.35.59.392026-03-17 → 2026-03-17 · 4 obs
○ 2026-03-09 23:16:32
● 2026-03-17 12:00:32
○ 2026-03-23 20:58:32
○ 2026-08-12 22:07:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
optimalcheckout.comns-212.awsdns-26.com, ns-519.awsdns-00.net, ns-1090.awsdns-08.org, ns-1774.awsdns-29.co.uk2 records

✅ Authoritative Response

Server:205.251.196.66

NS records: ns-212.awsdns-26.com, ns-519.awsdns-00.net, ns-1090.awsdns-08.org, ns-1774.awsdns-29.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for optimalcheckout.com (unsigned zone)

⏱️ Timing

Total: 754ms | Queries: -

📄 Records

TypeCountSample Data
A352.19.105.213, 34.254.145.220...
NS4ns-1090.awsdns-08.org, ns-1774.awsdns-29.co.uk...
MX6mxz1.klarna.com (pri: 10), mxz2.klarna.com (pri: 10)...
TXT1v=spf1 include:klarna.com -all
SOA1ns-1774.awsdns-29.co.uk awsdns-hostmaste

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-212.awsdns-26.com, ns-212.awsdns-26.com)

Analysis

IP Addresses

optimalcheckout.com resolves to three IP addresses: 18.200.36.58, 34.254.145.220 and 52.19.105.213.

Additional host names — lkarna.com, klarna-bank.no, billpay.fi and two others — share IP numbers with optimalcheckout.com.

Name Servers

optimalcheckout.com has four authoritative name servers: ns-212.awsdns-26.com, ns-519.awsdns-00.net, ns-1090.awsdns-08.org and ns-1774.awsdns-29.co.uk.

optimalcheckout.com shares at least some of its name servers with other domains, including forms.ctime.jp, dy4ylalhe443j.cloudfront.net, newsunbingo.org and two others.

The host names ns-212.awsdns-26.com, ns-519.awsdns-00.net, ns-1090.awsdns-08.org and ns-1774.awsdns-29.co.uk each resolve to two IP addresses: ns-212.awsdns-26.com resolves to 205.251.192.212 and 2600:9000:5300:d400::1; ns-519.awsdns-00.net resolves to 205.251.194.7 and 2600:9000:5302:700::1; ns-1090.awsdns-08.org resolves to 205.251.196.66 and 2600:9000:5304:4200::1; ns-1774.awsdns-29.co.uk resolves to 205.251.198.238 and 2600:9000:5306:ee00::1.

Mail Servers

optimalcheckout.com is handled by 6 mail servers: mxz1.klarna.com, mxz2.klarna.com, mxz3.klarna.com and 3 other.

optimalcheckout.com shares mail servers — at least in part — with other domains, including mittklarna.com, segoria.net, klarnabank.co and two others.

These mail servers are frequently paired with the mail servers mxz4.klarna.com, mxz6.klarna.com and mxz5.klarna.com.

mxz1.klarna.com, mxz2.klarna.com, mxz3.klarna.com and mxz4.klarna.com each resolve to one IP address: mxz1.klarna.com resolves to 52.30.236.203, mxz2.klarna.com resolves to 54.73.174.245, mxz3.klarna.com resolves to 3.73.181.240 and mxz4.klarna.com resolves to 35.156.176.213.