leetcode.co - dns.ninja

`leetcode.co`

DNSSEC	⚠️ Not signed
A	2600:3c03::f03c:95ff:fe00:29ca^{🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies} ✓ In HTTPS hints
A	2600:3c03::f03c:95ff:fe91:5d52^{🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies} ✓ In HTTPS hints
A	2600:3c03::f03c:95ff:feed:4d4f^{🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies} ✓ In HTTPS hints
A	2600:3c03::f03c:95ff:feed:cf2a^{🇺🇸 AKAMAI-LINODE-AP2600:3c03::/32 Akamai Technologies} ✓ In HTTPS hints
A	45.33.83.100^{🇺🇸 AKAMAI-LINODE-AP45.33.64.0/19 Akamai Technologies} ✓ In HTTPS hints
A	45.79.167.180^{🇺🇸 AKAMAI-LINODE-AP45.79.160.0/20 Akamai Technologies} ✓ In HTTPS hints
A	66.175.209.179^{🇺🇸 AKAMAI-LINODE-AP66.175.208.0/21 Akamai Technologies} ✓ In HTTPS hints
A	96.126.111.165^{🇺🇸 AKAMAI-LINODE-AP96.126.104.0/21 Akamai Technologies} ✓ In HTTPS hints
NS	`hehua.ns.giantpanda.com` ⭐
		A	3.33.232.36^{🇺🇸 Amazon3.33.224.0/20}
			PTR	`ab9e1958095d04f26.awsglobalaccelerator.com`
NS	`zhenzhen.ns.giantpanda.com`
		A	75.2.45.63^{🇺🇸 Amazon75.2.32.0/20}
			PTR	`ab9e1958095d04f26.awsglobalaccelerator.com`
HTTPS	HTTP/2, HTTP/3 ✓ hints match
		IPv4 hints	66.175.209.179, 45.33.83.100, 45.79.167.180, 96.126.111.165
		IPv6 hints	2600:3c03::f03c:95ff:feed:4d4f, 2600:3c03::f03c:95ff:feed:cf2a, 2600:3c03::f03c:95ff:fe00:29ca, 2600:3c03::f03c:95ff:fe91:5d52
SOA	`hehua.ns.giantpanda.com`admin@giantpanda.com 2013-02-04 #1

`co`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns0.centralnic.net` ⭐
	NS	`a.registrydns.co`
	NS	`b.registrydns.co`
	NS	`c.registrydns.co`
	NS	`d.registrydns.co`
	SOA	`ns0.centralnic.net`hostmaster@centralnic.net serial=1759720549

Subdomains

www.leetcode.co

Same first word

leetcode.wang

leetcode.codes

leetcode.co

leetcode.jp

leetcode.cn

leetcode.in

leetcode.ca

leetcode.io

leetcode.net

leetcode.uz

leetcode.pro

leetcode.com

Similar names

DNS History

31 records (10 active, 21 former)

●NShehua.ns.giantpanda.com2026-02-15 → 2026-07-30 · 3 obs

○ 2017-03-26 01:06:02
● 2026-02-15 00:53:20
● 2026-07-30 19:55:50

○NSns1.bodis.com2017-03-26 → 2017-03-26 · 3 obs

● 2017-03-26 01:06:02
○ 2026-02-15 00:53:20
○ 2026-07-30 19:55:50

○NSns2.bodis.com2017-03-26 → 2017-03-26 · 3 obs

● 2017-03-26 01:06:02
○ 2026-02-15 00:53:20
○ 2026-07-30 19:55:50

●NSzhenzhen.ns.giantpanda.com2026-02-15 → 2026-07-30 · 3 obs

○ 2017-03-26 01:06:02
● 2026-02-15 00:53:20
● 2026-07-30 19:55:50

○MXmx76.m2bp.com2017-03-26 → 2026-02-15 · 4 obs

● 2017-03-26 01:06:02
● 2026-02-15 00:53:20
○ 2026-02-24 03:11:28
○ 2026-07-30 19:55:50

○MXmx76.mb1p.com2017-03-26 → 2026-02-15 · 4 obs

● 2017-03-26 01:06:02
● 2026-02-15 00:53:20
○ 2026-02-24 03:11:28
○ 2026-07-30 19:55:50

○A139.162.174.2092026-05-17 → 2026-07-15 · 27 obs

○ 2026-05-16 05:13:08
● 2026-05-17 11:53:16
● 2026-05-21 14:50:40
○ 2026-05-21 15:41:06
● 2026-05-23 13:48:40
● 2026-05-25 03:58:30
○ 2026-05-25 07:16:06
● 2026-05-27 01:18:52
● 2026-05-28 23:57:40
○ 2026-06-01 03:56:16
● 2026-06-04 02:58:00
● 2026-06-06 15:39:36
○ 2026-06-09 15:59:12
● 2026-06-12 14:10:32
○ 2026-06-13 23:42:00
○ 2026-06-14 04:54:18
● 2026-06-16 10:40:36
○ 2026-06-17 15:59:12
● 2026-06-18 19:18:18
○ 2026-06-20 20:39:00
● 2026-06-21 21:08:42
○ 2026-07-12 12:58:26
● 2026-07-12 19:29:18
○ 2026-07-14 09:03:20
● 2026-07-15 17:36:02
○ 2026-07-30 18:26:10
○ 2026-07-30 19:55:50

○A139.162.181.762026-05-17 → 2026-07-15 · 27 obs

○A172.104.149.862026-05-17 → 2026-07-15 · 27 obs

○A172.104.203.1862026-05-17 → 2026-07-15 · 27 obs

○A172.104.251.1982026-05-17 → 2026-07-15 · 27 obs

○A192.155.84.2362026-05-16 → 2026-07-14 · 16 obs

○ 2026-02-25 11:16:08
● 2026-05-16 05:13:08
○ 2026-05-17 11:53:16
○ 2026-06-12 14:10:32
● 2026-06-13 23:42:00
○ 2026-06-14 04:54:18
○ 2026-06-16 10:40:36
● 2026-06-17 15:59:12
○ 2026-06-18 19:18:18
● 2026-06-20 20:39:00
○ 2026-06-21 21:08:42
● 2026-07-12 12:58:26
○ 2026-07-12 19:29:18
● 2026-07-14 09:03:20
○ 2026-07-15 09:16:04
○ 2026-07-30 19:55:50

○A199.59.242.1502017-03-26 → 2017-03-26 · 3 obs

● 2017-03-26 01:06:02
○ 2026-02-15 00:53:20
○ 2026-07-30 19:55:50

○A23.239.4.932026-05-16 → 2026-07-14 · 16 obs

○A2600:3c01::2000:3aff:feb3:2e942026-05-16 → 2026-07-14 · 16 obs

○A2600:3c01::f03c:95ff:fe91:5de52026-05-16 → 2026-07-14 · 16 obs

○A2600:3c01::f03c:95ff:feeb:5ed62026-05-16 → 2026-07-14 · 16 obs

●A2600:3c03::f03c:95ff:fe00:29ca2026-05-21 → 2026-07-30 · 19 obs

○ 2026-05-21 14:50:40
● 2026-05-21 15:41:06
○ 2026-05-23 13:48:40
○ 2026-05-25 03:58:30
● 2026-05-25 07:16:06
○ 2026-05-27 01:18:52
○ 2026-05-28 23:57:40
● 2026-06-01 03:56:16
○ 2026-06-04 02:58:00
○ 2026-06-06 15:39:36
● 2026-06-09 15:59:12
○ 2026-06-12 14:10:32
○ 2026-06-13 23:42:00
● 2026-06-14 04:54:18
○ 2026-06-16 10:40:36
● 2026-07-15 09:16:04
○ 2026-07-15 17:36:02
● 2026-07-30 18:26:10
● 2026-07-30 19:55:50

●A2600:3c03::f03c:95ff:fe91:5d522026-02-15 → 2026-07-30 · 23 obs

○ 2017-03-26 01:06:02
● 2026-02-15 00:53:20
● 2026-02-25 11:16:08
○ 2026-05-16 05:13:08
○ 2026-05-21 14:50:40
● 2026-05-21 15:41:06
○ 2026-05-23 13:48:40
○ 2026-05-25 03:58:30
● 2026-05-25 07:16:06
○ 2026-05-27 01:18:52
○ 2026-05-28 23:57:40
● 2026-06-01 03:56:16
○ 2026-06-04 02:58:00
○ 2026-06-06 15:39:36
● 2026-06-09 15:59:12
○ 2026-06-12 14:10:32
○ 2026-06-13 23:42:00
● 2026-06-14 04:54:18
○ 2026-06-16 10:40:36
● 2026-07-15 09:16:04
○ 2026-07-15 17:36:02
● 2026-07-30 18:26:10
● 2026-07-30 19:55:50

●A2600:3c03::f03c:95ff:feed:4d4f2026-02-15 → 2026-07-30 · 23 obs

●A2600:3c03::f03c:95ff:feed:cf2a2026-05-21 → 2026-07-30 · 19 obs

○A2a01:7e01::2000:dff:fec1:5cdb2026-05-17 → 2026-07-15 · 27 obs

○A2a01:7e01::f03c:95ff:fe00:26922026-05-17 → 2026-07-15 · 27 obs

○A2a01:7e01::f03c:95ff:fe91:5d912026-05-17 → 2026-07-15 · 27 obs

○A2a01:7e01::f03c:95ff:feeb:9d4b2026-05-17 → 2026-07-15 · 27 obs

○A2a01:7e01::f03c:95ff:feed:783e2026-05-17 → 2026-07-15 · 27 obs

●A45.33.83.1002026-05-21 → 2026-07-30 · 19 obs

●A45.79.167.1802026-05-21 → 2026-07-30 · 19 obs

●A66.175.209.1792026-02-15 → 2026-07-30 · 23 obs

○A74.207.241.2452026-05-16 → 2026-07-14 · 16 obs

●A96.126.111.1652026-02-15 → 2026-07-30 · 23 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
co	c.registrydns.co, a.registrydns.co, b.registrydns.co, d.registrydns.co	-
leetcode.co	zhenzhen.ns.giantpanda.com, hehua.ns.giantpanda.com	-

✅ Authoritative Response

Server:3.33.232.36

NS records: zhenzhen.ns.giantpanda.com, hehua.ns.giantpanda.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for leetcode.co (unsigned zone)

⏱️ Timing

Total: 275ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`45.79.167.180, 66.175.209.179...`
AAAA	4	`2600:3c03::f03c:95ff:fe91:5d52, 2600:3c03::f03c:95ff:fe00:29ca...`
NS	2	`hehua.ns.giantpanda.com, zhenzhen.ns.giantpanda.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2",`
SOA	1	`hehua.ns.giantpanda.com admin.giantpanda`

Analysis

Hierarchy

leetcode.co is the parent zone for www.leetcode.co.

IP Addresses

leetcode.co points to 8 IP addresses, including 45.33.83.100, 45.79.167.180 and 66.175.209.179, plus 5 other.

lisonline.com, scp.logmusic.com, uoeg.com plus two other host names have IP numbers in common with leetcode.co.

Name Servers

Two name servers handle the delegation for leetcode.co: hehua.ns.giantpanda.com and zhenzhen.ns.giantpanda.com.

The name server configuration of leetcode.co is shared with other domains, for instance www.giftcardmall.cm, concursolutions.co, blackboard.cm and two others.

leetcode.co partially shares its NS delegation with several other domains, including popupmailers.co.uk, applesave.com, bizwww.digitalkids.info and two others.

These name servers are regularly seen alongside qizai.ns.giantpanda.com and huamei.ns.giantpanda.com as name servers.

hehua.ns.giantpanda.com resolves to 3.33.232.36. zhenzhen.ns.giantpanda.com resolves to 75.2.45.63. Both host names point to a single IP number.