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384.0 M

Domains known to webXtrend

9.3 M

New domains in the last 30 days

62.4 M

Social media profiles detected

mathcheck.net

mathcheck.net 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.

4,101 other domains share an IP address with it.

The most recent crawl returned the page title “mathcheck - Free Online Calculator” and 680,779 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .net 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 4,101 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": "mathcheck.net"}'

Create a free account Read the API docs

Detected social media networks

No social networks found on this website.

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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 9/18/2026
Valid to 12/16/2026
Time until expiry 60 days

Last successful crawl

Title mathcheck - Free Online Calculator
Description 548 free online calculators, scientific calculator, unit converter, formula reference, and student math guides. Works on Chromebooks, tablets, and phones with no sign-up required.
Content-Length 680,779 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
104.21.71.77 3/26/2026
172.67.143.232 3/26/2026
IPv6 address Last updated
2606:4700:3033:0:0:0:6815:474d 7/3/2026
2606:4700:3036:0:0:0:ac43:8fe8 7/3/2026
2606:4700:3031:0:0:0:ac43:8fe8 3/26/2026
2606:4700:3037:0:0:0:6815:474d 3/26/2026
Mail server Priority Last updated
route3.mx.cloudflare.net 30 4/3/2026
route1.mx.cloudflare.net 68 4/3/2026
route2.mx.cloudflare.net 83 4/3/2026
Name server Last updated
rene.ns.cloudflare.com 3/26/2026
stephane.ns.cloudflare.com 3/26/2026

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

104.21.71.77 1,030 domains · here since 9/14/2026
Domain On this IP since
zzyy.my 9/24/2026
zx888.click 9/21/2026
zvhpalace.pics 9/21/2026
zuivks.cyou 10/13/2026
zucequna.com 9/19/2026
ztf6w.xyz 9/14/2026
zq88.org 9/13/2026
zorlenyx.store 9/17/2026
ziwuwu.com 9/20/2026
zipw.cc 9/16/2026
zipigrosman.co.il 10/8/2026
zhangxuzone.com 10/16/2026
and 1,017 more
172.67.143.232 1,029 domains · here since 9/14/2026
Domain On this IP since
zzyy.my 9/24/2026
zx888.click 9/21/2026
zvhpalace.pics 9/21/2026
zuivks.cyou 10/13/2026
zucequna.com 9/19/2026
ztf6w.xyz 9/14/2026
zq88.org 9/13/2026
zorlenyx.store 9/17/2026
ziwuwu.com 9/20/2026
zipw.cc 9/16/2026
zipigrosman.co.il 10/8/2026
zhangxuzone.com 10/16/2026
and 1,016 more
2606:4700:3033::6815:474d 1,021 domains · here since 9/14/2026
Domain On this IP since
zx888.click 9/21/2026
zvhpalace.pics 9/21/2026
zuivks.cyou 10/13/2026
zucequna.com 9/19/2026
ztf6w.xyz 9/14/2026
zq88.org 9/13/2026
zorlenyx.store 9/17/2026
ziwuwu.com 9/20/2026
zipw.cc 9/16/2026
zipigrosman.co.il 10/8/2026
zhangxuzone.com 10/16/2026
zentorica.click 9/21/2026
and 1,008 more
2606:4700:3036::ac43:8fe8 1,021 domains · here since 9/14/2026
Domain On this IP since
zx888.click 9/21/2026
zvhpalace.pics 9/21/2026
zuivks.cyou 10/13/2026
zucequna.com 9/19/2026
ztf6w.xyz 9/14/2026
zq88.org 9/13/2026
zorlenyx.store 9/17/2026
ziwuwu.com 9/20/2026
zipw.cc 9/16/2026
zipigrosman.co.il 10/8/2026
zhangxuzone.com 10/16/2026
zentorica.click 9/21/2026
and 1,008 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.