refdata.dev

refdata.dev serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate.

4,160 other domains share an IP address with it.

The most recent crawl returned the page title “RefData API — Global Reference Data for AI Agents & Developers” and 16,373 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	no	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	4,160	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": "refdata.dev"}'

Create a free account Read the API docs

Similar websites

Website	Similarity
worlddataapi.com World Data API - All the World's Data. One Endpoint. Countries, cities, timezones, holidays, currencies, airports — unified in a single, interconnected API. Stop juggling 6 APIs for global data.	85 %
newsagentdata.com NewsAgent Data — Global News Intelligence API for AI & Research Global news-intelligence API — real-time news from 190+ countries and territories in 49 languages, every article urgency-scored, political-lean classified an...	84 %
countrystatecity.in Countries, States & Cities API and Database \| CSC Database 250 countries, 5,300+ states and 150,000+ cities as a REST API, downloads and NPM/PyPI packages. Free tier available.	83 %
spunk.rest Spunk Rest — REST APIs for Developers & Sleep Science for Humans The top REST API directory for developers + sleep optimization tools for humans. Two meanings, one site. Free sleep calculator, API docs, and developer resou...	83 %
placeslayer.com PlacesLayer — Geographic Data API for Countries, Provinces & Cities Fast, reliable REST API for geographic data. Query 196 countries, provinces, and cities worldwide with native-script support. Free tier available.	83 %
newsagentdata.ru NewsAgent Data — глобальный API новостной аналитики для ИИ и аналитики Новостной API: 27 000+ источников в 190+ странах и территориях на 49 языках — включая 4 000+ публичных Telegram-каналов. Оценка срочности 0–10, темы, страны,...	83 %
myopenapis.com My Open APIs - Developer APIs for Weather, Holidays, Finance & More Access 100+ production HTTP APIs — utilities, AU data, weather, geo, finance, and more — with one API key. Free tier includes 1,000 requests/day.	83 %
narwhalapi.com Production-ready APIs for Market Data \| Narwhal API Access exchange rates, economic indicators, and commodity prices through REST and MCP with one API key.	83 %
exchangerate-api.com ExchangeRate-API - Free & Pro Currency Converter API Accurate & reliable Exchange Rates API trusted by tens of thousands of developers since 2010. Free access, all world currencies, helpful support & easy to in...	82 %
apiclearinghouse.com API Clearinghouse One API key. 34 APIs. Structured external data for AI agents and developers.	82 %
datacountry.io Home - DataCountry Comprehensive countries information API with data on currencies, languages, timezones, and more.	82 %
locanium.com Locanium \| The global data layer for your app One API for geolocation, currency and identity validation — IP & GPS location, timezone, FX, plus email, phone, VAT & IBAN checks. Sub-40 ms, GDPR-ready.	82 %
fakeapi.dev FakeAPI.dev — The Fake API Your Real Projects Deserve	82 %
dalotechservices.com Dalo Technology Services LLC \| High-Performance API Infrastructure	82 %
currencyflow.io Powerful & Reliable Currency Data API \| Currencyflow.io Access real-time and historical currency data with our powerful and reliable API. Trust us for accurate exchange rates, currency conversions, and more.	82 %
publicholidaysdata.com Public Holiday Data - Holiday API Access accurate public holiday data for over 200 countries through our reliable API service.	82 %
databeast.dev DataBeast - The Financial Data Router for AI-Powered Development Aggregate multiple financial APIs into one unified interface. Perfect for AI coding assistants, rapid prototyping, and production apps. Access real-time stoc...	82 %
tryapi.dev TryAPI - Build & Scale Your APIs A powerful API marketplace platform for developers. Access production-ready APIs, pay only for what you use, and scale without limits. Get 1,000 free API cal...	82 %
dev.me Professional Developer APIs \| 50,000+ Developers Trust Dev.me \| Start Free \| dev.me Professional API solutions trusted by 50,000+ developers worldwide. Email validation, IP geolocation, currency conversion, and more developer tools that powe...	81 %
arounddeal.com AroundDeal: Global B2B Data Infrastructure Built for the AI Era AroundDeal is a global B2B data platform built for the AI era. We help companies access and use high-quality business data at scale — through a self-serve pl...	81 %

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	40 days

Last successful crawl

Title	RefData API — Global Reference Data for AI Agents & Developers
Description	Fast, reliable REST API for countries, currencies, languages, timezones, holidays, and more. Built for AI agents and developers.
Content-Length	16,373 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
104.21.74.108	7/5/2026
172.67.201.199	7/5/2026

IPv6 address	Last updated
2606:4700:3030:0:0:0:ac43:c9c7	8/3/2026
2606:4700:3035:0:0:0:6815:4a6c	8/3/2026
2606:4700:3034:0:0:0:6815:4a6c	7/5/2026
2606:4700:3037:0:0:0:ac43:c9c7	7/5/2026

Name server	Last updated
carlos.ns.cloudflare.com	7/5/2026
julissa.ns.cloudflare.com	7/5/2026

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

104.21.74.108 1,047 domains · here since 10/19/2026

Domain	On this IP since
zzalsjx.com	9/19/2026
zshfg06.top	9/22/2026
zoaindustries.ca	10/9/2026
zncseguros.com.br	9/12/2026
zm1p1677.cfd	9/20/2026
zlewozmywaki.co	10/5/2026
zjyym.cn	10/11/2026
zjgcsgy.com.cn	9/27/2026
zhongxin200.cn	9/12/2026
zeroroll.com	9/14/2026
zcywlxx.cn	9/14/2026
zawee.energy	10/9/2026
and 1,034 more

172.67.201.199 1,047 domains · here since 10/19/2026

Domain	On this IP since
zzalsjx.com	9/19/2026
zshfg06.top	9/22/2026
zoaindustries.ca	10/9/2026
zncseguros.com.br	9/12/2026
zm1p1677.cfd	9/20/2026
zlewozmywaki.co	10/5/2026
zjyym.cn	10/11/2026
zjgcsgy.com.cn	9/27/2026
zhongxin200.cn	9/12/2026
zeroroll.com	9/14/2026
zcywlxx.cn	9/14/2026
zawee.energy	10/9/2026
and 1,034 more

2606:4700:3030::ac43:c9c7 1,033 domains · here since 10/19/2026

Domain	On this IP since
zzalsjx.com	9/19/2026
zshfg06.top	9/22/2026
zoaindustries.ca	10/9/2026
zncseguros.com.br	9/12/2026
zm1p1677.cfd	9/20/2026
zlewozmywaki.co	10/5/2026
zjyym.cn	10/11/2026
zjgcsgy.com.cn	9/27/2026
zhongxin200.cn	9/12/2026
zeroroll.com	9/14/2026
zcywlxx.cn	9/14/2026
zawee.energy	10/9/2026
and 1,020 more

2606:4700:3035::6815:4a6c 1,033 domains · here since 10/19/2026

Domain	On this IP since
zzalsjx.com	9/19/2026
zshfg06.top	9/22/2026
zoaindustries.ca	10/9/2026
zncseguros.com.br	9/12/2026
zm1p1677.cfd	9/20/2026
zlewozmywaki.co	10/5/2026
zjyym.cn	10/11/2026
zjgcsgy.com.cn	9/27/2026
zhongxin200.cn	9/12/2026
zeroroll.com	9/14/2026
zcywlxx.cn	9/14/2026
zawee.energy	10/9/2026
and 1,020 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!