bkref.com - dns.ninja

`bkref.com`

DNSSEC	⚠️ Not signed
A	52.4.138.193^{🇺🇸 Amazon52.4.0.0/14 EC2 IAD prefix}
		PTR	`ec2-52-4-138-193.compute-1.amazonaws.com`
A	52.7.200.195^{🇺🇸 Amazon52.4.0.0/14 EC2 IAD prefix}
A	54.237.146.205^{🇺🇸 Amazon54.237.0.0/16 EC2 IAD prefix}
NS	`ns-1092.awsdns-08.org` ⭐
		A	2600:9000:5304:4400::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1092.awsdns-08.org`
		A	205.251.196.68^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1092.awsdns-08.org`
NS	`ns-1838.awsdns-37.co.uk`
		A	2600:9000:5307:2e00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1838.awsdns-37.co.uk`
		A	205.251.199.46^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1838.awsdns-37.co.uk`
NS	`ns-260.awsdns-32.com`
		A	2600:9000:5301:400::1^{🇺🇸 Amazon2600:9000:5301::/48 - CloudFront}
			PTR	`ns-260.awsdns-32.com`
		A	205.251.193.4^{🇺🇸 Amazon205.251.193.0/24 prefix}
			PTR	`ns-260.awsdns-32.com`
NS	`ns-531.awsdns-02.net`
		A	2600:9000:5302:1300::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-531.awsdns-02.net`
		A	205.251.194.19^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-531.awsdns-02.net`
SOA	`ns-1092.awsdns-08.org`awsdns-hostmaster@amazon.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=1786096099

Subdomains

www.bkref.com

Same first word

bkref.com

Similar names

efbrk.com

krfeb.com

kbfre.com

frekb.ru

DNS History

30 records (7 active, 23 former)

●NSns-1092.awsdns-08.org2026-02-17 → 2026-08-07 · 3 obs

○ 2017-02-06 04:43:20
● 2026-02-17 01:11:04
● 2026-08-07 10:17:42

●NSns-1838.awsdns-37.co.uk2026-02-17 → 2026-08-07 · 3 obs

○ 2017-02-06 04:43:20
● 2026-02-17 01:11:04
● 2026-08-07 10:17:42

●NSns-260.awsdns-32.com2026-02-17 → 2026-08-07 · 3 obs

○ 2017-02-06 04:43:20
● 2026-02-17 01:11:04
● 2026-08-07 10:17:42

●NSns-531.awsdns-02.net2026-02-17 → 2026-08-07 · 3 obs

○ 2017-02-06 04:43:20
● 2026-02-17 01:11:04
● 2026-08-07 10:17:42

○NSns1.tummy.com2015-07-26 → 2017-02-06 · 4 obs

● 2015-07-26 11:39:30
● 2017-02-06 04:43:20
○ 2026-02-17 01:11:04
○ 2026-08-07 10:17:42

○NSns2.tummy.com2015-07-26 → 2017-02-06 · 4 obs

● 2015-07-26 11:39:30
● 2017-02-06 04:43:20
○ 2026-02-17 01:11:04
○ 2026-08-07 10:17:42

○NSns3.sports-reference.com2015-07-26 → 2017-02-06 · 4 obs

● 2015-07-26 11:39:30
● 2017-02-06 04:43:20
○ 2026-02-17 01:11:04
○ 2026-08-07 10:17:42

○NSns4.sports-reference.com2015-07-26 → 2017-02-06 · 4 obs

● 2015-07-26 11:39:30
● 2017-02-06 04:43:20
○ 2026-02-17 01:11:04
○ 2026-08-07 10:17:42

○MXmail.bkref.com2015-07-26 → 2026-02-17 · 4 obs

● 2015-07-26 11:39:30
● 2026-02-17 08:14:22
○ 2026-02-18 04:14:40
○ 2026-08-07 10:17:42

○A3.210.125.2522026-02-17 → 2026-02-20 · 5 obs

○ 2017-02-06 04:43:20
● 2026-02-17 01:11:04
● 2026-02-20 10:09:22
○ 2026-03-11 10:18:58
○ 2026-08-07 10:17:42

○A3.216.87.62026-03-11 → 2026-03-11 · 4 obs

○ 2026-02-20 10:09:22
● 2026-03-11 10:18:58
○ 2026-03-24 21:42:24
○ 2026-08-07 10:17:42

○A32.195.20.292026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-11 10:18:58
● 2026-03-24 21:42:24
○ 2026-05-19 07:15:42
○ 2026-08-07 10:17:42

○A32.197.18.462026-05-19 → 2026-05-19 · 5 obs

○ 2026-03-24 21:42:24
● 2026-05-19 07:15:42
● 2026-05-19 08:05:42
○ 2026-05-27 01:31:52
○ 2026-08-07 10:17:42

○A34.201.142.302026-03-11 → 2026-03-11 · 4 obs

○ 2026-02-20 10:09:22
● 2026-03-11 10:18:58
○ 2026-03-24 21:42:24
○ 2026-08-07 10:17:42

○A35.172.71.1672026-05-27 → 2026-05-29 · 5 obs

○ 2026-05-19 08:05:42
● 2026-05-27 01:31:52
● 2026-05-29 11:17:58
○ 2026-05-30 18:10:30
○ 2026-08-07 10:17:42

○A44.193.110.1042026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-11 10:18:58
● 2026-03-24 21:42:24
○ 2026-05-19 07:15:42
○ 2026-08-07 10:17:42

○A44.196.251.1642026-02-17 → 2026-08-07 · 2 obs

○ 2026-02-17 01:11:04
○ 2026-08-07 10:17:42

○A44.209.141.1992026-05-27 → 2026-05-30 · 5 obs

○ 2026-05-27 01:31:52
● 2026-05-27 21:35:44
● 2026-05-30 23:00:24
○ 2026-08-07 10:17:40
○ 2026-08-07 10:17:42

○A44.213.0.1712026-05-30 → 2026-05-30 · 5 obs

○ 2026-05-29 11:17:58
● 2026-05-30 18:10:30
● 2026-05-30 23:00:24
○ 2026-08-07 10:17:40
○ 2026-08-07 10:17:42

●A52.4.138.1932026-08-07 → 2026-08-07 · 3 obs

○ 2026-05-30 23:00:24
● 2026-08-07 10:17:40
● 2026-08-07 10:17:42

○A52.55.211.1872026-03-11 → 2026-03-11 · 4 obs

○ 2026-02-20 10:09:22
● 2026-03-11 10:18:58
○ 2026-03-24 21:42:24
○ 2026-08-07 10:17:42

●A52.7.200.1952026-08-07 → 2026-08-07 · 3 obs

○ 2026-05-30 23:00:24
● 2026-08-07 10:17:40
● 2026-08-07 10:17:42

○A54.163.132.2162026-05-19 → 2026-05-27 · 5 obs

○ 2026-03-24 21:42:24
● 2026-05-19 07:15:42
● 2026-05-27 01:31:52
○ 2026-05-27 21:35:44
○ 2026-08-07 10:17:42

○A54.173.200.222026-03-24 → 2026-03-24 · 4 obs

○ 2026-03-11 10:18:58
● 2026-03-24 21:42:24
○ 2026-05-19 07:15:42
○ 2026-08-07 10:17:42

○A54.204.105.1262026-02-17 → 2026-02-20 · 5 obs

○ 2017-02-06 04:43:20
● 2026-02-17 01:11:04
● 2026-02-20 10:09:22
○ 2026-03-11 10:18:58
○ 2026-08-07 10:17:42

○A54.224.198.1192026-02-17 → 2026-02-20 · 5 obs

○ 2017-02-06 04:43:20
● 2026-02-17 01:11:04
● 2026-02-20 10:09:22
○ 2026-03-11 10:18:58
○ 2026-08-07 10:17:42

●A54.237.146.2052026-08-07 → 2026-08-07 · 3 obs

○ 2026-05-30 23:00:24
● 2026-08-07 10:17:40
● 2026-08-07 10:17:42

○A54.85.101.932026-05-19 → 2026-05-19 · 5 obs

○ 2026-03-24 21:42:24
● 2026-05-19 07:15:42
● 2026-05-19 08:05:42
○ 2026-05-27 01:31:52
○ 2026-08-07 10:17:42

○A66.35.36.852015-07-26 → 2017-02-06 · 4 obs

● 2015-07-26 11:39:30
● 2017-02-06 04:43:20
○ 2026-02-17 01:11:04
○ 2026-08-07 10:17:42

○A98.89.240.2502026-05-27 → 2026-05-30 · 5 obs

○ 2026-05-19 08:05:42
● 2026-05-27 01:31:52
● 2026-05-30 23:00:24
○ 2026-08-07 10:17:40
○ 2026-08-07 10:17:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
bkref.com	ns-531.awsdns-02.net, ns-260.awsdns-32.com, ns-1092.awsdns-08.org, ns-1838.awsdns-37.co.uk	2 records

✅ Authoritative Response

Server:205.251.194.19

NS records: ns-531.awsdns-02.net, ns-260.awsdns-32.com, ns-1092.awsdns-08.org, ns-1838.awsdns-37.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bkref.com (unsigned zone)

⏱️ Timing

Total: 302ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`52.7.200.195, 54.237.146.205...`
NS	4	`ns-1092.awsdns-08.org, ns-1838.awsdns-37.co.uk...`
SOA	1	`ns-1092.awsdns-08.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-260.awsdns-32.com, ns-260.awsdns-32.com)

Analysis

Hierarchy

bkref.com is the parent zone for www.bkref.com.

IP Addresses

The hostname bkref.com resolves to three IP addresses: 52.4.138.193, 52.7.200.195 and 54.237.146.205.

Two other host names, along with debian-transition-top-lb-1613721977.us-east-1.elb.amazonaws.com, basketball-reference.net and baseballreference.net, also share IP numbers with bkref.com.

Name Servers

The NS records for bkref.com point to four name servers: ns-260.awsdns-32.com, ns-531.awsdns-02.net, ns-1092.awsdns-08.org and ns-1838.awsdns-37.co.uk.

bkref.com partially shares its NS delegation with several other domains, including rumbo.no, fleetmatics-irl.com, 014-office.com and two others.

In DNS configurations, these name servers often share authority with ns-92.awsdns-11.com, sdns3.ultradns.com, sdns3.ultradns.net and 4 other name servers.

ns-260.awsdns-32.com, ns-531.awsdns-02.net, ns-1092.awsdns-08.org and ns-1838.awsdns-37.co.uk each carry two IP addresses. ns-260.awsdns-32.com has 205.251.193.4 and 2600:9000:5301:400::1; ns-531.awsdns-02.net has 205.251.194.19 and 2600:9000:5302:1300::1; ns-1092.awsdns-08.org has 205.251.196.68 and 2600:9000:5304:4400::1; ns-1838.awsdns-37.co.uk has 205.251.199.46 and 2600:9000:5307:2e00::1.