dools.dev

Get an email when its DNS, website or certificate changes.

dools.dev serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate and MX records for mail.

3,582 other domains share an IP address with it.

The most recent crawl returned the page title “Free Online Developer Tools – dools.dev” and 226,697 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.dev	Statistics for all domains we know under this TLD.
Has website	yes	A website is hosted under the domain, which does not redirect to an external domain.
Has MX-record	yes	The domain has an MX record.
External redirect	no	The domain redirects to another domain.
Redirect to https	yes	The domain redirects to https.
Redirect to www.	no	The domain redirects to www.domain.
Only with www.	no	The domain can only be reached with the subdomain "www".
Only DNS, no website	no	There are no A or AAAA records in DNS.
IP-Address	Both	Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate	valid	Shows whether the domain has a valid SSL certificate.
Redirects	0	Number of domains that redirect to this domain.
Reverse IP	3,582	Number of domains with the same IP(s).

This data through the API

The data on this page is also available as JSON: /lookup for the key facts, /reverseip, /redirect and /similar for the lists, and /dnshistory with Basic and Premium. A free account comes with an API key and 100 calls a day.

curl -X POST https://api.webxtrend.com/v1.0/lookup \
  -H 'Content-Type: application/json' \
  -d '{"token": "YOUR_TOKEN", "query": "dools.dev"}'

Create a free account Read the API docs

Similar websites

Website	Similarity
iangunter.co.uk Ian Gunter - Free Developer Tools and Laravel Reference Free, browser-based developer tools for passwords, hashing, JSON, CSV, and Base64, plus a Laravel reference guide. Nothing to install, nothing uploaded.	91 %
richdevtools.com Rich Dev Tools - Developer Tools in Your Browser UUID generators, encoders, formatters and converters that run entirely in your browser. No accounts, no uploads - paste, convert, copy.	91 %
aidoma.in Free Web Tools \| Aidoma.in Free browser-based utilities from Aidoma.in—JSON formatter, password generator, QR codes, image tools, and more.	90 %
tooltastic.eu Tooltastic – Kostenlose Online-Tools für Entwickler & Designer Professionelle Browser-Tools: Base64 Converter, Favicon Generator, Mail-Signatur-Generator, Photoshop Online und Sales Popup Widget. Kostenlos, schnell, ohne...	90 %
beeweb.dev Home - Bee Web Dev Bee Web Dev is a modern developer toolbox offering powerful online utilities for web designers, programmers, and IT professionals — all in one place.	90 %
thetechinfo.net TheTechInfo - TheTechInfo offers simple tech tutorials, practical examples, and useful online tools. TheTechInfo - TheTechInfo offers simple tech tutorials, practical examples, and useful online tools.	89 %
gurutoolkit.com GuruToolkit - Free Online Tools Free online tools for PDF, image, developer, and SEO. No signup, no upload, process everything in your browser.	89 %
easytools4you.com 80+ Free Online Developer Tools - EasyTools4You EasyTools4You offers 80+ free online tools for developers — JSON, XML, CSV converters, QR codes, Base64, hash & encryption, and more. Fast and private.	89 %
dev-pixie.com DevPixie Collection of convenient online tools for development	89 %
free-tools.co.uk Free-Tools.co.uk A comprehensive collection of 100+ free online tools for developers, designers, and creators. Includes image converters, text utilities, code formatters, SEO...	89 %
utilora.app Utilora - Private Browser Tools Free online tools that run entirely in your browser. No file uploads, no accounts, no tracking. JSON formatter, Base64, text diff, unit converters, and more.	89 %
utilhub.in UtilHub — Free Developer Tools & AI Utilities \| UtilHub 55+ free developer tools: JSON formatter, regex tester, LLM token counter, JWT decoder, and more. No signup. Runs in your browser.	89 %
securebin.ai SecureBin.ai - Detect Exposed Secrets, APIs & Security Risks Find what you're exposing before hackers do. Scan domains for leaked API keys, missing security headers, exposed paths, and vulnerabilities. 70+ free securit...	89 %
myicttools.com My ICT Tools — Handy online tools My ICT Tools is a free, installable (PWA) collection of 60+ handy online utilities for documents, text, developers, networking, media, and everyday tasks — w...	89 %
dev-tool.lol Devtool — Free Online Devtools: Base64, JSON, SQL, Images Free online devtools: Base64 encoder, delimiter converter, JSON prettier, SQL formatter, URL/JWT tools, image compressor, cropper, background remover. Fast,...	89 %
clxon.com Free Developer Tools Online \| JSON Formatter & Password Generator Free developer tools online - no signup required! Generate QR codes, passwords, format JSON, encode Base64 & more. 100% GDPR compliant. Try now →	88 %
365utils.com 365utils.com \| Free Online Developer Utilities & Helper Tools A collection of 100% free, secure client-side developer tools including JSON formatter, QR code generator, password generator, and more. Clean and fast.	88 %
w3htech.com W3HTech - Free Online Tools, Calculators & Tech Blog Free online tools and calculators for moon phase, sunrise/sunset, Rahu Kaalam, Tithi, Nakshatra, math, energy, IP lookup, JSON formatting, YAML formatting, r...	88 %
waludo.com WaLudo Free Online Developer Tools Free online developer, conversion, security, file, and text tools that run locally in your browser. No uploads, accounts, servers, or data collection.	88 %
ikit.app iKit — Online Tools for Developers and Creators iKit is a suite of privacy-first online tools: JSON Decoder, PDF Tools, Image Compressor, QR Code Generator, SQL Converter, Background Remover, App Icon Gene...	88 %

Websites whose start page offers something similar, found by comparing the text of their start pages, across languages. Near-identical copies, parking pages and error pages are left out. The full list of up to 100 comes through the API: similar websites.

Last SSL certificate

Issuer	Google Trust Services
Valid from	8/31/2026
Valid to	11/29/2026
Time until expiry	39 days

Last successful crawl

Title	Free Online Developer Tools – dools.dev
Description	74+ free browser-based developer tools: JSON formatter, Base64 encoder, UUID generator, QR code generator, password generator, regex tester, and more. No install, no sign-up, no tracking.
Content-Length	226,697 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

DNS history

IPv4 address	Last updated
104.21.63.199	4/20/2026
172.67.150.11	4/20/2026
188.114.96.0	4/13/2026
188.114.97.0	4/13/2026
104.21.63.199	4/7/2026

IPv6 address	Last updated
2606:4700:3030:0:0:0:ac43:960b	6/29/2026
2606:4700:3036:0:0:0:6815:3fc7	6/29/2026
2606:4700:3030:0:0:0:ac43:960b	4/20/2026
2606:4700:3032:0:0:0:6815:3fc7	4/20/2026
2a06:98c1:3120:0:0:0:0:0	4/13/2026

Mail server	Priority	Last updated
route2.mx.cloudflare.net	32	10/29/2025
route1.mx.cloudflare.net	37	10/29/2025
route3.mx.cloudflare.net	49	10/29/2025

Name server	Last updated
jim.ns.cloudflare.com	10/11/2025
rita.ns.cloudflare.com	10/11/2025

The five most recent states of each record type. The full history comes through the API: DNS history.

Most recent redirect domains

No domains found.

Reverse IP neighbours

104.21.63.199 901 domains · here since 10/5/2026

Domain	On this IP since
zzgo787.top	9/14/2026
zz-yxps.com	9/13/2026
zyvralen.fun	9/21/2026
zungenband-hinwil.ch	9/15/2026
znnbfsoy.shop	9/23/2026
zindaakhushig.mn	9/23/2026
zimeenad.com	9/20/2026
ziggletofugrill.com	9/21/2026
zh-u23asiancup.com	9/20/2026
zfund.eu	9/19/2026
yyxl46.buzz	9/18/2026
yuepz.cc	10/18/2026
and 888 more

172.67.150.11 901 domains · here since 10/5/2026

Domain	On this IP since
zzgo787.top	9/14/2026
zz-yxps.com	9/13/2026
zyvralen.fun	9/21/2026
zungenband-hinwil.ch	9/15/2026
znnbfsoy.shop	9/23/2026
zindaakhushig.mn	9/23/2026
zimeenad.com	9/20/2026
ziggletofugrill.com	9/21/2026
zh-u23asiancup.com	9/20/2026
zfund.eu	9/19/2026
yyxl46.buzz	9/18/2026
yuepz.cc	10/18/2026
and 888 more

2606:4700:3030::ac43:960b 890 domains · here since 10/5/2026

Domain	On this IP since
zzgo787.top	9/14/2026
zz-yxps.com	9/13/2026
zyvralen.fun	9/21/2026
zungenband-hinwil.ch	9/15/2026
znnbfsoy.shop	9/23/2026
zindaakhushig.mn	9/23/2026
zimeenad.com	9/20/2026
ziggletofugrill.com	9/21/2026
zh-u23asiancup.com	9/20/2026
zfund.eu	9/19/2026
yuepz.cc	10/18/2026
yoursolarrelief.com	9/13/2026
and 877 more

2606:4700:3036::6815:3fc7 890 domains · here since 10/5/2026

Domain	On this IP since
zzgo787.top	9/14/2026
zz-yxps.com	9/13/2026
zyvralen.fun	9/21/2026
zungenband-hinwil.ch	9/15/2026
znnbfsoy.shop	9/23/2026
zindaakhushig.mn	9/23/2026
zimeenad.com	9/20/2026
ziggletofugrill.com	9/21/2026
zh-u23asiancup.com	9/20/2026
zfund.eu	9/19/2026
yuepz.cc	10/18/2026
yoursolarrelief.com	9/13/2026
and 877 more

Sharing an address does not always mean sharing a server: on a CDN or a large hosting platform, millions of unrelated domains answer on the same few addresses. We measured how far that goes in Half the web sits on 276 IP addresses. The complete list of neighbours, also for an IP address, comes through the API: reverse IP lookup.

Dive into our data, search now!