graphcore.com - dns.ninja

`graphcore.com`

DNSSEC	⚠️ Not signed
A	13.248.160.137^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`aa089eb6179d1ae2b.awsglobalaccelerator.com`
A	76.223.34.124^{🇺🇸 Amazon76.223.32.0/20}
NS	`pdns99.ultradns.com` ⭐ ⚠️ Not in zone NS records
		A	2001:502:f3ff::87^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns99.ultradns.com`
		A	156.154.64.99^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns99.ultradns.com`
NS	`pdns104.ultradns.biz` ⚠️ Not in parent delegation
		A	2610:a1:1015::8c^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns104.ultradns.biz`
		A	156.154.66.104^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns104.ultradns.biz`
NS	`pdns104.ultradns.com` ⚠️ Not in parent delegation
		A	2001:502:f3ff::8c^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`pdns104.ultradns.com`
		A	156.154.64.104^{🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar}
			PTR	`pdns104.ultradns.com`
NS	`pdns104.ultradns.net` ⚠️ Not in parent delegation
		A	2610:a1:1014::8c^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns104.ultradns.net`
		A	156.154.65.104^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns104.ultradns.net`
NS	`pdns104.ultradns.org` ⚠️ Not in parent delegation
		A	2001:502:4612::8c^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns104.ultradns.org`
		A	156.154.67.104^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns104.ultradns.org`
NS	`pdns99.ultradns.biz` ⚠️ Not in zone NS records
		A	2610:a1:1015::87^{🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar}
			PTR	`pdns99.ultradns.biz`
		A	156.154.66.99^{🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar}
			PTR	`pdns99.ultradns.biz`
NS	`pdns99.ultradns.net` ⚠️ Not in zone NS records
		A	2610:a1:1014::87^{🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar}
			PTR	`pdns99.ultradns.net`
		A	156.154.65.99^{🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar}
			PTR	`pdns99.ultradns.net`
NS	`pdns99.ultradns.org` ⚠️ Not in zone NS records
		A	2001:502:4612::87^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`pdns99.ultradns.org`
		A	156.154.67.99^{🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar}
			PTR	`pdns99.ultradns.org`
MX	`graphcore-ai.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::6^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::e^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db8pr02cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::6^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am4pr0401cu00106.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::c^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-as8pr05cu00304.inbound.protection.outlook.com`
		A	52.101.68.8^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-du0pr03cu00100.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.28^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00204.inbound.protection.outlook.com`
		A	52.101.73.30^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am7pr05cu00306.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com include:mail.zendesk.com -all`
SOA	`pdns99.ultradns.com`web@xmos.com 2016-06-06 #75

`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=1781491830

Same first word

graphcore.pl

graphcore.ai

graphcore.com

Similar names

DNS History

17 records (11 active, 6 former)

○NSns1.namebrightdns.com2015-07-24 → 2016-03-01 · 4 obs

● 2015-07-24 12:20:22
● 2016-03-01 15:10:22
○ 2016-07-06 08:17:16
○ 2026-06-15 03:15:36

○NSns2.namebrightdns.com2015-07-24 → 2016-03-01 · 4 obs

● 2015-07-24 12:20:22
● 2016-03-01 15:10:22
○ 2016-07-06 08:17:16
○ 2026-06-15 03:15:36

●NSpdns104.ultradns.biz2026-05-30 → 2026-06-15 · 3 obs

○ 2016-07-06 08:17:16
● 2026-05-30 10:47:24
● 2026-06-15 03:15:36

●NSpdns104.ultradns.com2026-05-30 → 2026-06-15 · 3 obs

○ 2016-07-06 08:17:16
● 2026-05-30 10:47:24
● 2026-06-15 03:15:36

●NSpdns104.ultradns.net2026-05-30 → 2026-06-15 · 3 obs

○ 2016-07-06 08:17:16
● 2026-05-30 10:47:24
● 2026-06-15 03:15:36

●NSpdns104.ultradns.org2026-05-30 → 2026-06-15 · 3 obs

○ 2016-07-06 08:17:16
● 2026-05-30 10:47:24
● 2026-06-15 03:15:36

●NSpdns99.ultradns.biz2016-07-06 → 2026-06-15 · 3 obs

○ 2016-03-01 15:10:22
● 2016-07-06 08:17:16
● 2026-06-15 03:15:36

●NSpdns99.ultradns.com2016-07-06 → 2026-06-15 · 3 obs

○ 2016-03-01 15:10:22
● 2016-07-06 08:17:16
● 2026-06-15 03:15:36

●NSpdns99.ultradns.net2016-07-06 → 2026-06-15 · 3 obs

○ 2016-03-01 15:10:22
● 2016-07-06 08:17:16
● 2026-06-15 03:15:36

●NSpdns99.ultradns.org2016-07-06 → 2026-06-15 · 3 obs

○ 2016-03-01 15:10:22
● 2016-07-06 08:17:16
● 2026-06-15 03:15:36

●MXgraphcore-ai.mail.protection.outlook.com2016-07-06 → 2026-06-15 · 3 obs

○ 2016-03-01 15:10:22
● 2016-07-06 08:17:16
● 2026-06-15 03:15:36

○MXmail1.namebrightmail.com2015-07-24 → 2016-03-01 · 4 obs

● 2015-07-24 12:20:22
● 2016-03-01 15:10:22
○ 2016-07-06 08:17:16
○ 2026-06-15 03:15:36

○MXmail2.namebrightmail.com2015-07-24 → 2016-03-01 · 4 obs

● 2015-07-24 12:20:22
● 2016-03-01 15:10:22
○ 2016-07-06 08:17:16
○ 2026-06-15 03:15:36

●A13.248.160.1372026-05-30 → 2026-06-15 · 3 obs

○ 2017-06-04 20:05:18
● 2026-05-30 10:47:24
● 2026-06-15 03:15:36

○A204.74.99.1002016-07-06 → 2017-06-04 · 5 obs

○ 2016-03-01 15:10:22
● 2016-07-06 08:17:16
● 2017-06-04 20:05:18
○ 2026-05-30 10:47:24
○ 2026-06-15 03:15:36

○A54.175.122.202015-07-24 → 2016-03-01 · 4 obs

● 2015-07-24 12:20:22
● 2016-03-01 15:10:22
○ 2016-07-06 08:17:16
○ 2026-06-15 03:15:36

●A76.223.34.1242026-05-30 → 2026-06-15 · 3 obs

○ 2017-06-04 20:05:18
● 2026-05-30 10:47:24
● 2026-06-15 03:15:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net...	-
graphcore.com	pdns99.ultradns.net, pdns99.ultradns.com, pdns99.ultradns.biz, pdns99.ultradns.org	2 records

✅ Authoritative Response

Server:156.154.67.99

NS records: pdns99.ultradns.net, pdns99.ultradns.com, pdns99.ultradns.biz, pdns99.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for graphcore.com (unsigned zone)

⏱️ Timing

Total: 619ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.248.160.137, 76.223.34.124`
NS	4	`pdns104.ultradns.biz, pdns104.ultradns.com...`
MX	2	`graphcore-ai.mail.protection.outlook.com, graphcore-ai.mail.protection.outlook.com`
TXT	1	`v=spf1 include:spf.protection.outlook.co`
SOA	1	`pdns99.ultradns.com web.xmos.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (pdns99.ultradns.com, pdns99.ultradns.com)

Analysis

IP Addresses

graphcore.com directs to two IP numbers, 13.248.160.137 and 76.223.34.124

karenmillen.ua, kontor.tv, jensentools.com plus two other host names have IP numbers in common with graphcore.com.

Name Servers

graphcore.com is served by 8 authoritative name servers — among them pdns104.ultradns.biz, pdns99.ultradns.biz, pdns104.ultradns.com and 5 others.

graphcore.com partially shares its NS delegation with several other domains, including treeties.co.in, y4113.com, 1012hth.com and two others.

In DNS configurations, these name servers often share authority with pdns104.ultradns.net, pdns104.ultradns.org, pdns99.ultradns.com and 7 other name servers.

Host names pointing to two IP addresses:

pdns104.ultradns.biz resolves to two addresses: 156.154.66.104 and 2610:a1:1015::8c.

pdns99.ultradns.biz resolves to two addresses: 156.154.66.99 and 2610:a1:1015::87.

pdns104.ultradns.com resolves to two addresses: 156.154.64.104 and 2001:502:f3ff::8c.

pdns99.ultradns.com resolves to two addresses: 156.154.64.99 and 2001:502:f3ff::87.

pdns104.ultradns.net resolves to two addresses: 156.154.65.104 and 2610:a1:1014::8c.

pdns99.ultradns.net resolves to two addresses: 156.154.65.99 and 2610:a1:1014::87.

pdns104.ultradns.org resolves to two addresses: 156.154.67.104 and 2001:502:4612::8c.

pdns99.ultradns.org resolves to two addresses: 156.154.67.99 and 2001:502:4612::87.

Mail Servers

graphcore.com uses one mail server — graphcore-ai.mail.protection.outlook.com.

graphcore.com uses the same mail servers as other domains, including graphcore.ai.

graphcore-ai.mail.protection.outlook.com has 8 IP addresses: 52.101.68.8, 52.101.73.4, 52.101.73.28 plus 5 more.