dev.37signals.com - dns.ninja

dev.37signals.com

CNAME37signals-dev-blog.pages.dev
DNSSEC⚠️ Not signed
A2606:4700:310c::ac42:2c3d🇺🇸 Cloudflare2606:4700:310c::/48 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:310c::ac42:2fc3🇺🇸 Cloudflare2606:4700:310c::/48 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.66.44.61🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.66.47.195🇺🇸 Cloudflare172.66.40.0/21 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmerlin.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3bcd🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmerlin.ns.cloudflare.com
A2803:f800:50::6ca2:c1cd🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmerlin.ns.cloudflare.com
A2a06:98c1:50::ac40:21cd🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmerlin.ns.cloudflare.com
A108.162.193.205🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmerlin.ns.cloudflare.com
A172.64.33.205🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmerlin.ns.cloudflare.com
A173.245.59.205🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmerlin.ns.cloudflare.com
NSserena.ns.cloudflare.com
A2606:4700:50::adf5:3adc🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRserena.ns.cloudflare.com
A2803:f800:50::6ca2:c0dc🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRserena.ns.cloudflare.com
A2a06:98c1:50::ac40:20dc🇺🇸 Cloudflare2a06:98c1:50::/45
PTRserena.ns.cloudflare.com
A108.162.192.220🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRserena.ns.cloudflare.com
A172.64.32.220🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRserena.ns.cloudflare.com
A173.245.58.220🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRserena.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints172.66.44.61, 172.66.47.195
IPv6 hints2606:4700:310c::ac42:2c3d, 2606:4700:310c::ac42:2fc3
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=180, name=cloudflare-ech.com
SOAmerlin.ns.cloudflare.comdns@cloudflare.com serial=2407341307

37signals.com

DNSSEC⚠️ Not signed
A104.18.0.135Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.1.135Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSmerlin.ns.cloudflare.com ⭐
NSserena.ns.cloudflare.com
MXwork-mx.app.hey.com ⭐
TXT8x2rys9qrtmrt08s01k2dhf220y0bc3h
TXTZOOM_verify_3PsRA01tPEqbRQuZq0ovDX
TXTanthropic-domain-verification-2ned89=7e1u02UWpXxRVFbqXvTepQODa
TXTapple-domain-verification=fZq9u43pq901FVrX
TXTatlassian-domain-verification=jDcnbDUp4Eqr8vcG6rwzJC/AiL4ryyQCoTDiAKjKnP7rzlv...
TXTgoogle-site-verification=75SnvFixCmuTIw1yttct06G6Mk7vGOqJDKqVd4sD66g
TXTgoogle-site-verification=vPyWJnzga2ciedbmL9z3PaMMS7gMZba_d4KE-GXzcUI
TXThey-verification:wvrWxEPH2vgJ5hJp8cjdWfZx
TXTopenai-domain-verification=dv-brKIWqu5JEkAoXYjfCz66ucV
TXTstripe-verification=F970494BA4495175BB0BBBBBB611C2410B599753DB459B0B27676C72D...
TXTv=spf1 include:_spf.basecamp.com include:servers.mcsv.net -all
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.18.0.135, 104.18.1.135
SOAmerlin.ns.cloudflare.comdns@cloudflare.com serial=2405246249
WOT: SAFE (92/100)
rank #7419 globally
rank #3632 in the tld
WOT: SAFE (92/100)
📈 Tranco rank: #22,081

PTR for

114.62.32.72.in-addr.arpa

Previously MX for

workrev.com

Same first word

dev.by
dev.xyz
dev.community
dev.al
dev.finance
dev.ne.jp
dev.sale
dev.wpdevcloud.com
dev.uk
dev.city
dev.hf.space
dev.rs
dev.lighting
dev.town
dev.vn
dev.kz
dev.uz
dev.lu
dev.events
dev.shiksha
dev.idf.il
dev.rt.ht
dev.gold
dev.co.id
dev.bnpparibas
dev.ad
dev.space
dev.international
dev.myftp.org
dev.med
dev.wiki
dev.dn.ua
dev.s3-us-west-2.amazonaws.com
dev.dance
dev.aws
dev.cd
dev.cy
dev.com.br
dev.hm
dev.live
dev.ws
dev.ca
dev.no
dev.awsapps.com
dev.biz
dev.ltd
dev.education
dev.web.id
dev.cz
dev.exchange
dev.host
dev.work
dev.canva-apps.com
dev.black
dev.sa
dev.mine.nu
dev.com.jo
dev.lc
dev.myshopify.com
dev.adobeaemcloud.com
dev.kitchen
dev.ss
dev.tn
dev.server-on.net
dev.hu
dev.xnbay.com
dev.dk
dev.com.pl
dev.org.pk
dev.domains
dev.ml
dev.family
dev.org
dev.site
dev.camp
dev.marketing
dev.net
dev.agency
dev.jobs
dev.fitness
dev.com
dev.vip
dev.cam
dev.tools
dev.bo
dev.bio
dev.lt
dev.krd
dev.chat
dev.org.tr
dev.company
dev.management
dev.s3.amazonaws.com
dev.ru.net
dev.qa
dev.mx
dev.co
dev.dojin.com
dev.hr
dev.bi
dev.express
dev.co.il
dev.ro
dev.fail

Similar names

edv.be
dve.kz
edv.st
evd.me
ved.pl
edv.me
ved.com.cn
edv.cz
ved.io
dev.band
dev.fm
vde.enterprises
dve.ru
dev.edgesuite.net
dev.directory
dve.si
vde.us
dev.re
edv.to
evd.mobi
dev.coffee
edv.org.tr
dev.sh
dev.tw
evd.es
dev.mo.cn
dev.co.ke
evd.org
ved.in
dev.business
vde.com.ua
dev.rw
dev.support
ved.ro
dev.rip
dev.be
dev.estate
dev.tl
evd.ch
edv.hn
evd.org.cn
dev.com.ua
dev.su
dev.pe
dve.at
dev.pink
dev.to
vde.com.mx
edv.eu
vde.it
dve.be
dev.report
edv.hu
dev.org.es
dve.by
edv.expert
dve.one
dev.coupons
dev.ms
dev.com.bo
edv.us
dev.network
vde.co.za
ved.ai
dev.ch
dev.run
dve.es
vde.dk
dev.vc
dev.care
dev.us
dve.vn
evd.net
dev.zip
edv.com.bo
evd.com.my
ved.at
edv.info
dev.fish
ved.kiev.ua
dev.as
dev.watch
ved.es
dev.co.zw

DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A204.62.114.212CNAME37signals-dev-blog.pages.dev
○A204.62.114.2122015-08-17 → 2016-07-09 · 4 obs
● 2015-08-17 12:11:52
● 2016-07-09 08:47:06
○ 2026-05-27 07:12:44
○ 2026-07-16 01:34:16
●CNAME37signals-dev-blog.pages.dev2026-05-27 → 2026-07-16 · 2 obs
● 2026-05-27 07:12:44
● 2026-07-16 01:34:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comc.gtld-servers.net, b.gtld-servers.net, l.gtld-servers.net, a.gtld-servers.net...-
37signals.commerlin.ns.cloudflare.com, serena.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.220

NS records: merlin.ns.cloudflare.com, serena.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 37signals.com (unsigned zone)

⏱️ Timing

Total: 1105ms | Queries: -

📄 Records

TypeCountSample Data
CNAME137signals-dev-blog.pages.dev

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

dev.37signals.com resolves to four IP addresses: 172.66.44.61, 172.66.47.195, 2606:4700:310c::ac42:2c3d and 2606:4700:310c::ac42:2fc3.

ledger-aktualisieren.pages.dev, krnl-download-latest-version-2026.pages.dev, business-suite-info-contact-support.pages.dev plus two other host names have IP numbers in common with dev.37signals.com.

Name Servers

Two name servers handle the delegation for dev.37signals.com: merlin.ns.cloudflare.com and serena.ns.cloudflare.com.

The name server configuration of dev.37signals.com is shared with other domains, for instance briefing-mediji.hr, cylex.co.za, cylex-australia.com and two others.

dev.37signals.com has at least partial name server overlap with other domains, such as usdataemailstats.com, trionua.com, campwinnebago.com and two others.

It is common to see these name servers used together with name servers chan.ns.cloudflare.com and sneh.ns.cloudflare.com.

Hosts with 6 IP addresses each:

merlin.ns.cloudflare.com resolves to 108.162.193.205, 172.64.33.205 and 173.245.59.205 among others, with 3 other IP addresses in total.

serena.ns.cloudflare.com resolves to 108.162.192.220, 172.64.32.220 and 173.245.58.220 among others, with 3 other IP addresses in total.