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384.9 M

Domains known to webXtrend

9.7 M

New domains in the last 30 days

62.8 M

Social media profiles detected

sigma.dev

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

sigma.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.

4,370 other domains share an IP address with it.

The most recent crawl returned the page title “sigma.dev | 525: SSL handshake failed” and 7,717 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 4,370 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": "sigma.dev"}'

Create a free account Read the API docs

Detected social media networks

No social networks found on this website.

Similar websites

This domain answered with an error page (last checked 10/20/2026), so there is no website to compare.

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 10/15/2026
Valid to 1/12/2027
Time until expiry 82 days

Last successful crawl

Title sigma.dev | 525: SSL handshake failed
Description (not set)
Content-Length 7,717 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
104.21.31.249 12/7/2023
172.67.181.150 12/7/2023
IPv6 address Last updated
2606:4700:3033:0:0:0:6815:1ff9 7/3/2026
2606:4700:3035:0:0:0:ac43:b596 7/3/2026
2606:4700:3031:0:0:0:6815:1ff9 12/7/2023
2606:4700:3032:0:0:0:ac43:b596 12/7/2023
Mail server Priority Last updated
inbound-smtp.us-west-2.amazonaws.com 10 1/3/2024
Name server Last updated
bill.ns.cloudflare.com 12/7/2023
penny.ns.cloudflare.com 12/7/2023

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

104.21.31.249 1,098 domains · here since 9/13/2026
Domain On this IP since
zx0777.com 9/22/2026
zunneke-haarlo.nl 9/18/2026
zteeavqibjsgj.space 9/21/2026
zrtqingshui.com 9/12/2026
zqsocks.com 10/16/2026
zhenzirandp.com 9/15/2026
zhcn8.com 9/17/2026
zgyc888.com 10/21/2026
zexmorinkhepphex.world 9/15/2026
zeus291oke.lat 9/18/2026
zdcxhh.com 9/22/2026
zckjspace.cn 9/21/2026
and 1,085 more
172.67.181.150 1,098 domains · here since 9/13/2026
Domain On this IP since
zx0777.com 9/22/2026
zunneke-haarlo.nl 9/18/2026
zteeavqibjsgj.space 9/21/2026
zrtqingshui.com 9/12/2026
zqsocks.com 10/16/2026
zhenzirandp.com 9/15/2026
zhcn8.com 9/17/2026
zgyc888.com 10/21/2026
zexmorinkhepphex.world 9/15/2026
zeus291oke.lat 9/18/2026
zdcxhh.com 9/22/2026
zckjspace.cn 9/21/2026
and 1,085 more
2606:4700:3033::6815:1ff9 1,087 domains · here since 9/13/2026
Domain On this IP since
zx0777.com 9/22/2026
zunneke-haarlo.nl 9/18/2026
zteeavqibjsgj.space 9/21/2026
zrtqingshui.com 9/12/2026
zqsocks.com 10/16/2026
zhenzirandp.com 9/15/2026
zhcn8.com 9/17/2026
zgyc888.com 10/21/2026
zexmorinkhepphex.world 9/15/2026
zeus291oke.lat 9/18/2026
zdcxhh.com 9/22/2026
zckjspace.cn 9/21/2026
and 1,074 more
2606:4700:3035::ac43:b596 1,087 domains · here since 9/13/2026
Domain On this IP since
zx0777.com 9/22/2026
zunneke-haarlo.nl 9/18/2026
zteeavqibjsgj.space 9/21/2026
zrtqingshui.com 9/12/2026
zqsocks.com 10/16/2026
zhenzirandp.com 9/15/2026
zhcn8.com 9/17/2026
zgyc888.com 10/21/2026
zexmorinkhepphex.world 9/15/2026
zeus291oke.lat 9/18/2026
zdcxhh.com 9/22/2026
zckjspace.cn 9/21/2026
and 1,074 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.