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384.6 M

Domains known to webXtrend

9.6 M

New domains in the last 30 days

62.8 M

Social media profiles detected

req.cool

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

req.cool carries DNS records but serves no website.

1,766 other domains share an IP address with it.

The most recent crawl returned the page title “Req - Simple Go HTTP client with Black Magic” and 15,082 bytes of HTML.

Domain properties

Property Value Explanation
Top-level domain .cool Statistics for all domains we know under this TLD.
Has website no 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 yes There are no A or AAAA records in DNS.
IP-Address servfail Shows whether the domain only has IPv4 or IPv6 or both.
SSL-Certificate no certificate Shows whether the domain has a valid SSL certificate.
Redirects 0 Number of domains that redirect to this domain.
Reverse IP 1,766 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": "req.cool"}'

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 Google Trust Services
Valid from 8/14/2026
Valid to 11/12/2026
Time until expiry 21 days

Last successful crawl

Title Req - Simple Go HTTP client with Black Magic
Description Req is a Simple Go HTTP client with Black Magic (Less code and More efficiency).
Content-Length 15,082 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
104.21.93.32 12/9/2023
172.67.204.50 12/9/2023
IPv6 address Last updated
2606:4700:3035:0:0:0:6815:5d20 6/25/2026
2606:4700:3035:0:0:0:ac43:cc32 6/25/2026
2606:4700:3031:0:0:0:ac43:cc32 12/9/2023
2606:4700:3035:0:0:0:6815:5d20 12/9/2023
Name server Last updated
art.ns.cloudflare.com 12/9/2023
meera.ns.cloudflare.com 12/9/2023

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

2606:4700:3035::6815:5d20 883 domains · here since 9/23/2026
Domain On this IP since
zzmengka.com 9/22/2026
zuthjeans.com.br 10/2/2026
ztmy.fans 9/20/2026
znxkf.info 9/20/2026
ziffo.nl 10/13/2026
zgldnc.com 9/17/2026
zgequ.my 10/10/2026
zestideologycoop.com.np 9/19/2026
zarspin.pl 9/17/2026
zakigonjgovtcollege.edu.bd 9/23/2026
zainosamsonite.com 9/17/2026
zaindevelopers.in 9/21/2026
and 870 more
2606:4700:3035::ac43:cc32 883 domains · here since 9/23/2026
Domain On this IP since
zzmengka.com 9/22/2026
zuthjeans.com.br 10/2/2026
ztmy.fans 9/20/2026
znxkf.info 9/20/2026
ziffo.nl 10/13/2026
zgldnc.com 9/17/2026
zgequ.my 10/10/2026
zestideologycoop.com.np 9/19/2026
zarspin.pl 9/17/2026
zakigonjgovtcollege.edu.bd 9/23/2026
zainosamsonite.com 9/17/2026
zaindevelopers.in 9/21/2026
and 870 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.