codinghorror.com - dns.ninja

`codinghorror.com`

DNSSEC	⚠️ Not signed
A	2606:4700:20::681a:6a1^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::681a:7a1^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:20::ac43:4b13^{🇺🇸 Cloudflare2606:4700:20::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.6.161^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.26.7.161^{Cloudflare104.26.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.75.19^{🇺🇸 Cloudflare172.67.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lovisa.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2627^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lovisa.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c227^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lovisa.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2227^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lovisa.ns.cloudflare.com`
		A	108.162.194.39^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lovisa.ns.cloudflare.com`
		A	162.159.38.39^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lovisa.ns.cloudflare.com`
		A	172.64.34.39^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lovisa.ns.cloudflare.com`
NS	`rory.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ca6^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rory.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3a6^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`rory.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23a6^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`rory.ns.cloudflare.com`
		A	108.162.195.166^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rory.ns.cloudflare.com`
		A	162.159.44.166^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rory.ns.cloudflare.com`
		A	172.64.35.166^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`rory.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	2607:f8b0:4004:c08::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f27.1e100.net`
		A	2607:f8b0:4004:c1f::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f26.1e100.net`
		A	2607:f8b0:4004:c1f::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f27.1e100.net`
		A	64.233.180.26^{🇺🇸 Google64.233.180.0/24}
			PTR	`on-in-f26.1e100.net`
			PTR	`pe-in-f26.1e100.net`
		A	142.251.179.26^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f26.1e100.net`
		A	142.251.179.27^{🇺🇸 Google142.251.179.0/24}
			PTR	`pd-in-f27.1e100.net`
		A	172.253.63.26^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f26.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
TXT	`google-site-verification=2oV3cW79A6icpGf-JbLGY4rP4_omL4FOKTqRxb-Dyl4`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.26.6.161, 104.26.7.161, 172.67.75.19
		IPv6 hints	2606:4700:20::681a:6a1, 2606:4700:20::681a:7a1, 2606:4700:20::ac43:4b13
SOA	`lovisa.ns.cloudflare.com`dns@cloudflare.com serial=2406515723

`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=1785105467

rank #5609 globally
rank #2781 in the tld
WOT: SAFE (92/100)
📈 Tranco rank: #23,649

Subdomains

discourse-cdn.codinghorror.com

discourse.codinghorror.com

blog.codinghorror.com

Same first word

codinghorror.com

DNS History

21 records (9 active, 12 former)

●NSlovisa.ns.cloudflare.com2026-02-16 → 2026-07-26 · 3 obs

○ 2017-02-14 06:04:44
● 2026-02-16 16:11:10
● 2026-07-26 23:04:12

○NSnina.ns.cloudflare.com2015-08-12 → 2017-02-14 · 4 obs

● 2015-08-12 21:10:30
● 2017-02-14 06:04:44
○ 2026-02-16 16:11:10
○ 2026-07-26 23:04:12

○NSpete.ns.cloudflare.com2015-08-12 → 2017-02-14 · 4 obs

● 2015-08-12 21:10:30
● 2017-02-14 06:04:44
○ 2026-02-16 16:11:10
○ 2026-07-26 23:04:12

●NSrory.ns.cloudflare.com2026-02-16 → 2026-07-26 · 3 obs

○ 2017-02-14 06:04:44
● 2026-02-16 16:11:10
● 2026-07-26 23:04:12

○MXalt1.aspmx.l.google.com2015-08-12 → 2017-02-14 · 4 obs

● 2015-08-12 21:10:30
● 2017-02-14 06:04:44
○ 2026-02-16 16:11:10
○ 2026-07-26 23:04:12

○MXalt2.aspmx.l.google.com2015-08-12 → 2017-02-14 · 4 obs

● 2015-08-12 21:10:30
● 2017-02-14 06:04:44
○ 2026-02-16 16:11:10
○ 2026-07-26 23:04:12

○MXaspmx.l.google.com2015-08-12 → 2017-02-14 · 4 obs

● 2015-08-12 21:10:30
● 2017-02-14 06:04:44
○ 2026-02-16 16:11:10
○ 2026-07-26 23:04:12

○MXaspmx2.googlemail.com2015-08-12 → 2017-02-14 · 4 obs

● 2015-08-12 21:10:30
● 2017-02-14 06:04:44
○ 2026-02-16 16:11:10
○ 2026-07-26 23:04:12

○MXaspmx3.googlemail.com2015-08-12 → 2017-02-14 · 4 obs

● 2015-08-12 21:10:30
● 2017-02-14 06:04:44
○ 2026-02-16 16:11:10
○ 2026-07-26 23:04:12

●MXsmtp.google.com2026-02-16 → 2026-07-26 · 3 obs

○ 2017-02-14 06:04:44
● 2026-02-16 16:11:10
● 2026-07-26 23:04:12

●A104.26.6.1612026-02-16 → 2026-07-26 · 3 obs

○ 2017-02-14 06:04:44
● 2026-02-16 16:11:10
● 2026-07-26 23:04:12

●A104.26.7.1612026-02-16 → 2026-07-26 · 3 obs

○ 2017-02-14 06:04:44
● 2026-02-16 16:11:10
● 2026-07-26 23:04:12

○A104.28.28.1072015-08-12 → 2015-11-20 · 4 obs

● 2015-08-12 21:10:30
● 2015-11-20 22:47:42
○ 2016-02-11 01:47:52
○ 2026-07-26 23:04:12

○A104.28.29.1072015-08-12 → 2015-11-20 · 4 obs

● 2015-08-12 21:10:30
● 2015-11-20 22:47:42
○ 2016-02-11 01:47:52
○ 2026-07-26 23:04:12

●A172.67.75.192026-02-16 → 2026-07-26 · 3 obs

○ 2017-02-14 06:04:44
● 2026-02-16 16:11:10
● 2026-07-26 23:04:12

○A2400:cb00:2048:1::681c:1c6b2015-08-12 → 2015-11-20 · 4 obs

● 2015-08-12 21:10:30
● 2015-11-20 22:47:42
○ 2016-02-11 01:47:52
○ 2026-07-26 23:04:12

○A2400:cb00:2048:1::681c:1d6b2015-08-12 → 2015-11-20 · 4 obs

● 2015-08-12 21:10:30
● 2015-11-20 22:47:42
○ 2016-02-11 01:47:52
○ 2026-07-26 23:04:12

●A2606:4700:20::681a:6a12026-02-16 → 2026-07-26 · 3 obs

○ 2017-02-14 06:04:44
● 2026-02-16 16:11:10
● 2026-07-26 23:04:12

●A2606:4700:20::681a:7a12026-02-16 → 2026-07-26 · 3 obs

○ 2017-02-14 06:04:44
● 2026-02-16 16:11:10
● 2026-07-26 23:04:12

●A2606:4700:20::ac43:4b132026-02-16 → 2026-07-26 · 3 obs

○ 2017-02-14 06:04:44
● 2026-02-16 16:11:10
● 2026-07-26 23:04:12

○A91.146.108.1482016-02-11 → 2017-02-14 · 5 obs

○ 2015-11-20 22:47:42
● 2016-02-11 01:47:52
● 2017-02-14 06:04:44
○ 2026-02-16 16:11:10
○ 2026-07-26 23:04:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
codinghorror.com	lovisa.ns.cloudflare.com, rory.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.166

NS records: lovisa.ns.cloudflare.com, rory.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codinghorror.com (unsigned zone)

⏱️ Timing

Total: 237ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`104.26.6.161, 104.26.7.161...`
AAAA	3	`2606:4700:20::681a:7a1, 2606:4700:20::ac43:4b13...`
NS	2	`lovisa.ns.cloudflare.com, rory.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=2oV3cW79A6icpGf, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lovisa.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (lovisa.ns.cloudflare.com, lovisa.ns.cloudflare.com, lovisa.ns.cloudflare.com...)

Analysis

Hierarchy

codinghorror.com sits above discourse-cdn.codinghorror.com, discourse.codinghorror.com and blog.codinghorror.com in the domain hierarchy.

IP Addresses

codinghorror.com points to 6 IP addresses, including 104.26.6.161, 104.26.7.161 and 172.67.75.19, plus 3 other.

cardinal.livepositively.com, jlmemphis.org, proteus.ers-c.com plus two other host names have IP numbers in common with codinghorror.com.

Name Servers

DNS delegation for codinghorror.com points to two name servers: lovisa.ns.cloudflare.com and rory.ns.cloudflare.com.

The name server configuration of codinghorror.com is shared with other domains, for instance scseed.org, fullstacklabs.org, delasbolivianas.com and two others.

There is at least partial name server overlap between codinghorror.com and other domains — zxhjt17.vip, llccursor.com, tilenrep.com and two more among them.

These name servers frequently co-occur with the name servers khloe.ns.cloudflare.com and itzel.ns.cloudflare.com.

Hosts with 6 IP addresses each:

lovisa.ns.cloudflare.com has IP addresses 108.162.194.39, 162.159.38.39 and 172.64.34.39, plus 3 other.

rory.ns.cloudflare.com has IP addresses 108.162.195.166, 162.159.44.166 and 172.64.35.166, plus 3 other.

Mail Servers

codinghorror.com uses one mail server — smtp.google.com.

The mail server setup of codinghorror.com matches that of other domains such as foxpestcoverage.info, greatestgametcg.com, mapsuka.com.tw and two others.

At least some of the mail servers used by codinghorror.com are shared with other domains: upliftprofessionals.in, promoequipos.com, shipulski.com and two others among them.

These mail servers often appear in conjunction with the mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

smtp.google.com has 9 IP addresses: 64.233.180.26, 142.251.179.26, 142.251.179.27 plus 6 more.