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382.8 M

Domains known to webXtrend

9.2 M

New domains in the last 30 days

63.4 M

Social media profiles detected

21.com

21.com serves a website of its own over HTTPS. It answers on IPv4 only, with a valid TLS certificate and MX records for mail.

73 other domains share an IP address with it, and 52 domains redirect to it.

The most recent crawl returned the page title “Just a moment...” and 5,610 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .com 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 only IPv4 Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate valid Shows whether the domain has a valid SSL certificate.
Redirects 52 Number of domains that redirect to this domain.
Reverse IP 73 Number of domains with the same IP(s).

Detected social media networks

No social networks found on this website.

Similar websites

This domain blocked our crawler (bot protection or rate limit) (last checked 10/6/2026), 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.

Last SSL certificate

Issuer Google Trust Services
Valid from 9/7/2026
Valid to 12/6/2026
Time until expiry 57 days

Last successful crawl

Title Just a moment...
Description (not set)
Content-Length 5,610 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
104.18.20.225 12/7/2025
104.18.21.225 12/7/2025
104.20.35.30 10/13/2025
172.66.146.35 10/13/2025
104.22.6.153 12/6/2023
IPv6 address Last updated
2606:4700:0:0:0:0:6812:14e1 12/7/2025
2606:4700:0:0:0:0:6812:15e1 12/7/2025
2606:4700:10:0:0:0:6814:231e 10/13/2025
2606:4700:10:0:0:0:ac42:9223 10/13/2025
2606:4700:10:0:0:0:6816:699 12/6/2023
Mail server Priority Last updated
smtp.google.com 1 4/22/2026
route2.mx.cloudflare.net 18 7/28/2024
route3.mx.cloudflare.net 35 7/28/2024
route1.mx.cloudflare.net 65 7/28/2024
aspmx.l.google.com 1 1/2/2024
Name server Last updated
clint.ns.cloudflare.com 12/7/2025
serenity.ns.cloudflare.com 12/7/2025
aarav.ns.cloudflare.com 12/6/2023
jen.ns.cloudflare.com 12/6/2023

Most recent redirect domains

Domain Last seen
21.com.mw 10/10/2026
21bet.et 10/10/2026
21bet.co.zw 10/10/2026
21bet.cm 10/10/2026
21bet.com.lr 10/10/2026
21bet.ci 10/9/2026
21.com.ci 10/8/2026
21.bingo 10/8/2026
21bet.ga 10/8/2026
21.cg 10/7/2026
21.co.cm 10/7/2026
21bet.tz 10/7/2026
and 40 more

Reverse IP neighbours

104.18.20.225 37 domains · here since 9/13/2026
Domain On this IP since
worldkinect.energy 9/21/2026
webmvr.com 9/14/2026
tg5500.com 9/16/2026
tabbytarot.fun 9/20/2026
summahealthvirtualvisit.org 10/6/2026
slotcity.ua 9/18/2026
seeklysearch.com 9/13/2026
see-destin.com 9/17/2026
sanihydro.com.tr 9/18/2026
sandcanyonbusinesscenter.com 9/18/2026
regosub.com 9/14/2026
rcmbt-rdss.com 9/15/2026
and 24 more
104.18.21.225 36 domains · here since 9/13/2026
Domain On this IP since
worldkinect.energy 9/21/2026
webmvr.com 9/14/2026
tg5500.com 9/16/2026
tabbytarot.fun 9/20/2026
summahealthvirtualvisit.org 10/6/2026
slotcity.ua 9/18/2026
seeklysearch.com 9/13/2026
see-destin.com 9/17/2026
sanihydro.com.tr 9/18/2026
sandcanyonbusinesscenter.com 9/18/2026
regosub.com 9/14/2026
rcmbt-rdss.com 9/15/2026
and 23 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.