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385.4 M

Domains known to webXtrend

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New domains in the last 30 days

62.7 M

Social media profiles detected

errorcore.dev

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

errorcore.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.

Its busiest IP address is shared with 1,024 other domains.

The most recent crawl returned the page title “Errorcore - Runtime Intelligence for Production Failures” and 59,845 bytes of HTML. The site links to X.

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 4,090 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": "errorcore.dev"}'

Create a free account Read the API docs

Detected social media networks

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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 Let's Encrypt
Valid from 9/16/2026
Valid to 12/15/2026
Time until expiry 51 days

Last successful crawl

Title Errorcore - Runtime Intelligence for Production Failures
Description Capture the runtime state behind production failures. Errorcore preserves locals, async context, I/O and execution evidence so humans and AI can understand why software failed.
Content-Length 59,845 bytes

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

DNS history

IPv4 address First seen
104.21.71.155 8/11/2026
172.67.145.201 8/11/2026
216.198.79.1 4/13/2026
IPv6 address First seen
2606:4700:3033:0:0:0:6815:479b 8/11/2026
2606:4700:3036:0:0:0:ac43:91c9 8/11/2026
Mail server Priority First seen
smtp.google.com 1 4/26/2026
Name server First seen
jake.ns.cloudflare.com 3/29/2026
olivia.ns.cloudflare.com 3/29/2026

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

104.21.71.155 1,025 domains · here since 9/16/2026
Domain On this IP since
zzz81.com 9/19/2026
zuxoxizuri.pro 9/16/2026
zsnzf.com 9/14/2026
zsaehoccyukuf.website 9/19/2026
zorgandersnieuws.be 10/9/2026
zionbsp.com.br 9/13/2026
zima-spa.ru 9/19/2026
zhxxzspj.com 9/13/2026
zebra-kyoto.co.jp 9/23/2026
zasova.net 9/22/2026
ywlr.cn 10/17/2026
yuzzah.com 9/22/2026
and 1,012 more
172.67.145.201 1,025 domains · here since 9/16/2026
Domain On this IP since
zzz81.com 9/19/2026
zuxoxizuri.pro 9/16/2026
zsnzf.com 9/14/2026
zsaehoccyukuf.website 9/19/2026
zorgandersnieuws.be 10/9/2026
zionbsp.com.br 9/13/2026
zima-spa.ru 9/19/2026
zhxxzspj.com 9/13/2026
zebra-kyoto.co.jp 9/23/2026
zasova.net 9/22/2026
ywlr.cn 10/17/2026
yuzzah.com 9/22/2026
and 1,012 more
2606:4700:3033::6815:479b 1,020 domains · here since 9/16/2026
Domain On this IP since
zzz81.com 9/19/2026
zuxoxizuri.pro 9/16/2026
zsnzf.com 9/14/2026
zsaehoccyukuf.website 9/19/2026
zorgandersnieuws.be 10/9/2026
zionbsp.com.br 9/13/2026
zima-spa.ru 9/19/2026
zhxxzspj.com 9/13/2026
zebra-kyoto.co.jp 9/23/2026
zasova.net 9/22/2026
ywlr.cn 10/17/2026
yuzzah.com 9/22/2026
and 1,007 more
2606:4700:3036::ac43:91c9 1,020 domains · here since 9/16/2026
Domain On this IP since
zzz81.com 9/19/2026
zuxoxizuri.pro 9/16/2026
zsnzf.com 9/14/2026
zsaehoccyukuf.website 9/19/2026
zorgandersnieuws.be 10/9/2026
zionbsp.com.br 9/13/2026
zima-spa.ru 9/19/2026
zhxxzspj.com 9/13/2026
zebra-kyoto.co.jp 9/23/2026
zasova.net 9/22/2026
ywlr.cn 10/17/2026
yuzzah.com 9/22/2026
and 1,007 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.