Dive into our data, search now!

We offer robust APIs and data services for domainers, data crawlers, security teams and many more.

385.2 M

Domains known to webXtrend

9.8 M

New domains in the last 30 days

62.8 M

Social media profiles detected

openpostcodes.uk

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

openpostcodes.uk serves a website of its own. It answers on both IPv4 and IPv6, with a valid TLS certificate.

3,393 other domains share an IP address with it.

The most recent crawl returned the page title “OpenPostcodes” and 27,773 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .uk 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 no 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 3,393 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": "openpostcodes.uk"}'

Create a free account Read the API docs

Detected social media networks

No social networks found on this website.

Similar websites

Website Similarity
JSON.uk — tiny JSON utilities
46 tiny JSON utilities over HTTPS. One subdomain, one answer. curl any of them.
78 %
Hi, I'm Isaac
Isaac Harris-Holt's Portfolio Site
73 %
JSONBin Server - Online
73 %
Codium — فريق تطوير مواقع وتطبيقات
72 %
SSWAP
71 %
Json Minify — Compress JSON and See the Size Saved
JSON minify tool to remove whitespace, validate input, sort keys, pretty-print, and see original versus minified byte savings.
71 %
阿波的博客
blog & blog theme🤘
71 %
Hell-Per - Helper stuff for lazy devs
71 %
This is...J-Play!
71 %
EasyJSON | Home
EasyJSON serves sample static and dynamic-style JSON payloads for UI and API testing.
71 %
ToolTrack.dev — Fast, free developer utilities
A curated set of fast, private, browser-based developer tools: JSON, Base64, UUID, JWT, color, markdown, regex, lists, and more — all running entirely in you...
71 %
Fix JSON Online — Repair Invalid JSON | fixjson.org
Repair broken JSON in your browser. Fix trailing commas, single quotes, unquoted keys, comments, and Python-style values, then format the result.
71 %
Directory listing for /
70 %
What's Wrong With My Car? Free AI Car Problem Checker | GrepKit
Say or type what your car is doing and find out what it probably is, if it's safe to drive, and what the repair should cost. Free, simple, no sign-up.
70 %
JSONDecodeError at /
70 %
70 %
json2smtp - Connet to your smtp server over json
Service for sending emails using json structure. A proxy between json to smtp. Connect to your SMTP server using JSON calls.
70 %
free online json to csv, xml, yaml & toon converter - JSON Convert
Convert JSON instantly with JSON Convert — a free, secure online tool for developers, analysts and creators to convert JSON to CSV, XML, YAML or TOON formats...
70 %
free online json to csv, xml, yaml & toon converter - JSON Convert
Convert JSON instantly with JSON Convert — a free, secure online tool for developers, analysts and creators to convert JSON to CSV, XML, YAML or TOON formats...
70 %
DevsBox
Fast browser-based developer utilities for formatting, validating, converting, and inspecting code data.
70 %

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 8/30/2026
Valid to 11/28/2026
Time until expiry 36 days

Last successful crawl

Title OpenPostcodes
Description (not set)
Content-Length 27,773 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
104.21.12.227 7/6/2026
172.67.196.136 7/6/2026
IPv6 address Last updated
2606:4700:3034:0:0:0:6815:ce3 7/6/2026
2606:4700:3035:0:0:0:ac43:c488 7/6/2026
Name server Last updated
jason.ns.cloudflare.com 7/6/2026
jo.ns.cloudflare.com 7/6/2026

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

104.21.12.227 853 domains · here since 10/14/2026
Domain On this IP since
zxf66.buzz 10/10/2026
zuzusport.com 9/16/2026
zuzeduu.com 9/18/2026
zoxin.click 10/8/2026
zjrfdq.cn 9/17/2026
ziliudiny.com 9/12/2026
zhurnik.com 9/15/2026
zhenrenbaijialeonline.com 9/23/2026
zggjbsc.com 9/23/2026
zenithl.com 9/23/2026
zenbytez.com 10/16/2026
yvhah.com 9/14/2026
and 840 more
172.67.196.136 853 domains · here since 10/14/2026
Domain On this IP since
zxf66.buzz 10/10/2026
zuzusport.com 9/16/2026
zuzeduu.com 9/18/2026
zoxin.click 10/8/2026
zjrfdq.cn 9/17/2026
ziliudiny.com 9/12/2026
zhurnik.com 9/15/2026
zhenrenbaijialeonline.com 9/23/2026
zggjbsc.com 9/23/2026
zenithl.com 9/23/2026
zenbytez.com 10/16/2026
yvhah.com 9/14/2026
and 840 more
2606:4700:3034::6815:ce3 844 domains · here since 10/14/2026
Domain On this IP since
zxf66.buzz 10/10/2026
zuzusport.com 9/16/2026
zuzeduu.com 9/18/2026
zoxin.click 10/8/2026
zjrfdq.cn 9/17/2026
ziliudiny.com 9/12/2026
zhurnik.com 9/15/2026
zggjbsc.com 9/23/2026
zentex.co.nz 10/16/2026
zenithl.com 9/23/2026
zenbytez.com 10/16/2026
yvhah.com 9/14/2026
and 831 more
2606:4700:3035::ac43:c488 843 domains · here since 10/14/2026
Domain On this IP since
zxf66.buzz 10/10/2026
zuzusport.com 9/16/2026
zuzeduu.com 9/18/2026
zoxin.click 10/8/2026
zjrfdq.cn 9/17/2026
ziliudiny.com 9/12/2026
zhurnik.com 9/15/2026
zggjbsc.com 9/23/2026
zentex.co.nz 10/16/2026
zenithl.com 9/23/2026
zenbytez.com 10/16/2026
yvhah.com 9/14/2026
and 830 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.