runpace.run

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

runpace.run 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.

4,150 other domains share an IP address with it.

The most recent crawl returned the page title “RUNPACE.RUN – Running Pace Calculator for 5K, 10K, Half Marathon & Marathon” and 13,807 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.run	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	4,150	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": "runpace.run"}'

Create a free account Read the API docs

Similar websites

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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	9/7/2026
Valid to	12/6/2026
Time until expiry	45 days

Last successful crawl

Title	RUNPACE.RUN – Running Pace Calculator for 5K, 10K, Half Marathon & Marathon
Description	Free race pace calculator for runners. Calculate running pace, min/km, finish times, 5K pace, 10K pace, half marathon pace and marathon pace. Løpekalkulator, fartskalkulator og tempokalkulator for løpere. Löpkalkylator och tempokalkylator för löpare. Laufrechner und Pace Rechner für Läufer. Calculat...
Content-Length	13,807 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
104.21.57.55	5/13/2026
172.67.159.143	5/13/2026

IPv6 address	Last updated
2606:4700:3033:0:0:0:6815:3937	7/1/2026
2606:4700:3037:0:0:0:ac43:9f8f	7/1/2026
2606:4700:3032:0:0:0:ac43:9f8f	5/13/2026
2606:4700:3036:0:0:0:6815:3937	5/13/2026

Mail server	Priority	Last updated
eforward1.registrar-servers.com	10	5/13/2026
eforward2.registrar-servers.com	10	5/13/2026
eforward3.registrar-servers.com	10	5/13/2026
eforward4.registrar-servers.com	15	5/13/2026
eforward5.registrar-servers.com	20	5/13/2026

Name server	Last updated
peyton.ns.cloudflare.com	5/13/2026
susan.ns.cloudflare.com	5/13/2026

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

104.21.57.55 1,041 domains · here since 9/23/2026

Domain	On this IP since
zyxbimby.pro	9/16/2026
zyklus1atelier.ch	10/3/2026
zise394.cc	10/18/2026
zgxdqyb.com	9/15/2026
zeus138jakarta.com	10/20/2026
zeiok.com	9/19/2026
zed.co.id	9/18/2026
zealouslearning.com	9/15/2026
zawasystems.com	9/16/2026
zaplaylist.com.br	9/12/2026
z800.org	9/20/2026
yuhanrox.com	9/14/2026
and 1,028 more

172.67.159.143 1,041 domains · here since 9/23/2026

Domain	On this IP since
zyxbimby.pro	9/16/2026
zyklus1atelier.ch	10/3/2026
zise394.cc	10/18/2026
zgxdqyb.com	9/15/2026
zeus138jakarta.com	10/20/2026
zeiok.com	9/19/2026
zed.co.id	9/18/2026
zealouslearning.com	9/15/2026
zawasystems.com	9/16/2026
zaplaylist.com.br	9/12/2026
z800.org	9/20/2026
yuhanrox.com	9/14/2026
and 1,028 more

2606:4700:3033::6815:3937 1,034 domains · here since 9/23/2026

Domain	On this IP since
zyxbimby.pro	9/16/2026
zyklus1atelier.ch	10/3/2026
zise394.cc	10/18/2026
zgxdqyb.com	9/15/2026
zeus138jakarta.com	10/20/2026
zeiok.com	9/19/2026
zed.co.id	9/18/2026
zealouslearning.com	9/15/2026
zawasystems.com	9/16/2026
z800.org	9/20/2026
yuhanrox.com	9/14/2026
yudelevich.cl	9/15/2026
and 1,021 more

2606:4700:3037::ac43:9f8f 1,034 domains · here since 9/23/2026

Domain	On this IP since
zyxbimby.pro	9/16/2026
zyklus1atelier.ch	10/3/2026
zise394.cc	10/18/2026
zgxdqyb.com	9/15/2026
zeus138jakarta.com	10/20/2026
zeiok.com	9/19/2026
zed.co.id	9/18/2026
zealouslearning.com	9/15/2026
zawasystems.com	9/16/2026
z800.org	9/20/2026
yuhanrox.com	9/14/2026
yudelevich.cl	9/15/2026
and 1,021 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.

Dive into our data, search now!