write.guru - dns.ninja

`write.guru`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:d166^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:3540^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.53.64^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.209.102^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`alec.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b3b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alec.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c13b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`alec.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:213b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`alec.ns.cloudflare.com`
		A	108.162.193.59^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alec.ns.cloudflare.com`
		A	172.64.33.59^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alec.ns.cloudflare.com`
		A	173.245.59.59^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`alec.ns.cloudflare.com`
NS	`sima.ns.cloudflare.com`
		A	2606:4700:50::adf5:3ade^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sima.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0de^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sima.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20de^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sima.ns.cloudflare.com`
		A	108.162.192.222^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sima.ns.cloudflare.com`
		A	172.64.32.222^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sima.ns.cloudflare.com`
		A	173.245.58.222^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sima.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c06::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f27.1e100.net`
		A	172.253.62.27^{🇺🇸 Google172.253.62.0/24}
			PTR	`bc-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`aspmx3.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
TXT	`google-site-verification=xWBGq9ElxffUmU4trOh9Ro5aZdiw48TXmz8eESaoehc`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.53.64, 172.67.209.102
		IPv6 hints	2606:4700:3031::ac43:d166, 2606:4700:3032::6815:3540
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=26, name=cloudflare-ech.com
SOA	`alec.ns.cloudflare.com`dns@cloudflare.com serial=2410215683

`guru`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.guru` ⭐
	NS	`v0n1.nic.guru`
	NS	`v0n2.nic.guru`
	NS	`v0n3.nic.guru`
	NS	`v2n0.nic.guru`
	NS	`v2n1.nic.guru`
	SOA	`v0n0.nic.guru`hostmaster@donuts.email serial=1784897082

Same first word

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DNS History

22 records (11 active, 11 former)

●NSalec.ns.cloudflare.com2026-02-17 → 2026-07-24 · 3 obs

○ 2017-10-10 08:53:22
● 2026-02-17 01:32:18
● 2026-07-24 12:51:44

○NSns1.write.guru2016-12-11 → 2017-10-10 · 4 obs

● 2016-12-11 00:57:58
● 2017-10-10 08:53:22
○ 2026-02-17 01:32:18
○ 2026-07-24 12:51:44

○NSns1a.dodns.net2016-12-11 → 2017-10-10 · 4 obs

● 2016-12-11 00:57:58
● 2017-10-10 08:53:22
○ 2026-02-17 01:32:18
○ 2026-07-24 12:51:44

○NSns2a.dodns.net2016-12-11 → 2017-10-10 · 4 obs

● 2016-12-11 00:57:58
● 2017-10-10 08:53:22
○ 2026-02-17 01:32:18
○ 2026-07-24 12:51:44

●NSsima.ns.cloudflare.com2026-02-17 → 2026-07-24 · 3 obs

○ 2017-10-10 08:53:22
● 2026-02-17 01:32:18
● 2026-07-24 12:51:44

●MXalt1.aspmx.l.google.com2026-02-17 → 2026-07-24 · 2 obs

● 2026-02-17 01:32:18
● 2026-07-24 12:51:44

●MXalt2.aspmx.l.google.com2026-02-17 → 2026-07-24 · 2 obs

● 2026-02-17 01:32:18
● 2026-07-24 12:51:44

●MXaspmx.l.google.com2026-02-17 → 2026-07-24 · 2 obs

● 2026-02-17 01:32:18
● 2026-07-24 12:51:44

●MXaspmx2.googlemail.com2026-02-17 → 2026-07-24 · 2 obs

● 2026-02-17 01:32:18
● 2026-07-24 12:51:44

●MXaspmx3.googlemail.com2026-02-17 → 2026-07-24 · 2 obs

● 2026-02-17 01:32:18
● 2026-07-24 12:51:44

●A104.21.53.642026-02-17 → 2026-07-24 · 13 obs

○ 2017-10-10 08:53:22
● 2026-02-17 01:32:18
● 2026-04-20 09:00:30
○ 2026-04-28 03:17:28
● 2026-05-02 02:54:30
● 2026-05-07 02:37:04
○ 2026-05-08 04:43:42
● 2026-05-20 22:57:56
○ 2026-05-21 14:05:14
● 2026-06-11 05:03:50
○ 2026-06-24 04:36:18
● 2026-07-24 12:51:42
● 2026-07-24 12:51:44

○A157.52.65.152016-12-11 → 2017-10-10 · 4 obs

● 2016-12-11 00:57:58
● 2017-10-10 08:53:22
○ 2026-02-17 01:32:18
○ 2026-07-24 12:51:44

○A157.52.97.152016-12-11 → 2017-10-10 · 4 obs

● 2016-12-11 00:57:58
● 2017-10-10 08:53:22
○ 2026-02-17 01:32:18
○ 2026-07-24 12:51:44

●A172.67.209.1022026-02-17 → 2026-07-24 · 13 obs

○A188.114.96.02026-04-28 → 2026-06-24 · 11 obs

○ 2026-04-20 09:00:30
● 2026-04-28 03:17:28
○ 2026-05-02 02:54:30
○ 2026-05-07 02:37:04
● 2026-05-08 04:43:42
○ 2026-05-20 22:57:56
● 2026-05-21 14:05:14
○ 2026-06-11 05:03:50
● 2026-06-24 04:36:18
○ 2026-07-24 12:51:42
○ 2026-07-24 12:51:44

○A188.114.97.02026-04-28 → 2026-06-24 · 11 obs

●A2606:4700:3031::ac43:d1662026-07-24 → 2026-07-24 · 3 obs

○ 2026-06-24 04:36:18
● 2026-07-24 12:51:42
● 2026-07-24 12:51:44

●A2606:4700:3032::6815:35402026-07-24 → 2026-07-24 · 3 obs

○ 2026-06-24 04:36:18
● 2026-07-24 12:51:42
● 2026-07-24 12:51:44

○A2606:4700:3035::6815:35402026-02-17 → 2026-06-11 · 12 obs

○A2606:4700:3037::ac43:d1662026-02-17 → 2026-06-11 · 12 obs

○A2a06:98c1:3120::2026-04-28 → 2026-06-24 · 11 obs

○A2a06:98c1:3121::2026-04-28 → 2026-06-24 · 11 obs

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
guru	v0n0.nic.guru, v0n1.nic.guru, v0n2.nic.guru, v0n3.nic.guru...	12 records
write.guru	sima.ns.cloudflare.com, alec.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.222

NS records: sima.ns.cloudflare.com, alec.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for write.guru (unsigned zone)

⏱️ Timing

Total: 1241ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.209.102, 104.21.53.64`
AAAA	2	`2606:4700:3031::ac43:d166, 2606:4700:3032::6815:3540`
NS	2	`alec.ns.cloudflare.com, sima.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...`
TXT	1	`google-site-verification=xWBGq9ElxffUmU4`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`alec.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.guru, v0n0.nic.guru, v0n1.nic.guru...)

Analysis

IP Addresses

write.guru directs to four IP numbers, which are 104.21.53.64, 172.67.209.102, 2606:4700:3031::ac43:d166 and 2606:4700:3032::6815:3540.

Additional host names — smshd.co, aryak.dev, andretaillefer.ca and two others — share IP numbers with write.guru.

Name Servers

write.guru has two authoritative name servers — alec.ns.cloudflare.com and sima.ns.cloudflare.com.

write.guru shares its name server setup with other domains, including targanautica.com.br, jazzpedia.com, r-tools.org and two others.

At least some of write.guru's name servers are shared with other domains, for example prowlerpress.com, 321244.com, fisiofisico.com and two more.

It is common for these name servers to be used in conjunction with the name servers daisy.ns.cloudflare.com, owen.ns.cloudflare.com and sterling.ns.cloudflare.com.

Host names with 6 IP numbers:

alec.ns.cloudflare.com points to 108.162.193.59, 172.64.33.59, 173.245.59.59 and 3 other IP addresses.

sima.ns.cloudflare.com points to 108.162.192.222, 172.64.32.222, 173.245.58.222 and 3 other IP addresses.

Mail Servers

Five mail servers handle write.guru: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

write.guru shares mail servers — at least in part — with other domains, including ns500731.ns500671.ns500671.ns500742.ns500671.ns500671.ns500731.ns500731.ns500705.ns500671.ns500705.ns500704.ns500291.ns500649.ns500153.tenderladiesbz.com, ns500742.ns500671.ns500671.ns500742.ns500704.ns500705.ns500671.ns500688.lusty(0x736c7574)z.com, ns500742.ns500671.ns500671.ns500742.ns500671.ns500688.ns500678.ns500678.ns500291.ns500666.ns500653.ns500153.tenderladiesbz.com and two others.

These mail servers are frequently used alongside mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other.

Host names with two IP numbers:

aspmx2.googlemail.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

aspmx3.googlemail.com resolves to 172.253.116.26 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com resolves to 172.253.62.27 and 2607:f8b0:4004:c06::1b.

alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1b.

The host names aspmx2.googlemail.com and alt1.aspmx.l.google.com both resolve to 108.177.123.27 IP addresses.