devdoctor.dev

devdoctor.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.

3,414 other domains share an IP address with it.

The most recent crawl returned the page title “Dev Doctor” and 13,033 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	3,414	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": "devdoctor.dev"}'

Create a free account Read the API docs

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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	9/2/2026
Valid to	12/1/2026
Time until expiry	43 days

Last successful crawl

Title	Dev Doctor
Description	Free developer tools: JSON formatter, certificate viewer, QR generator, regex tester, JWT decoder, and 35+ more utilities.
Content-Length	13,033 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
104.21.11.17	7/7/2026
172.67.147.142	7/7/2026

IPv6 address	Last updated
2606:4700:3036:0:0:0:6815:b11	7/7/2026
2606:4700:3037:0:0:0:ac43:938e	7/7/2026

Mail server	Priority	Last updated
route3.mx.cloudflare.net	13	7/7/2026
route1.mx.cloudflare.net	27	7/7/2026
route2.mx.cloudflare.net	88	7/7/2026

Name server	Last updated
hasslo.ns.cloudflare.com	7/7/2026
tegan.ns.cloudflare.com	7/7/2026

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

104.21.11.17 860 domains · here since 9/19/2026

Domain	On this IP since
zzzz1k.com	9/16/2026
zoventa.online	9/21/2026
zo88.tech	9/16/2026
zjbangyue.com	9/20/2026
zfshandao.com	9/14/2026
zeusboladaily.com	9/16/2026
zeus138dpd.site	9/14/2026
zaimloyoegoso.xyz	9/15/2026
zaemdozaplata.com	9/13/2026
yw8.xyz	9/12/2026
ypcikabrembang.org	9/13/2026
yously.wiki	9/23/2026
and 847 more

172.67.147.142 860 domains · here since 9/19/2026

Domain	On this IP since
zzzz1k.com	9/16/2026
zoventa.online	9/21/2026
zo88.tech	9/16/2026
zjbangyue.com	9/20/2026
zfshandao.com	9/14/2026
zeusboladaily.com	9/16/2026
zeus138dpd.site	9/14/2026
zaimloyoegoso.xyz	9/15/2026
zaemdozaplata.com	9/13/2026
yw8.xyz	9/12/2026
ypcikabrembang.org	9/13/2026
yously.wiki	9/23/2026
and 847 more

2606:4700:3036::6815:b11 847 domains · here since 9/19/2026

Domain	On this IP since
zzzz1k.com	9/16/2026
zoventa.online	9/21/2026
zo88.tech	9/16/2026
zjbangyue.com	9/20/2026
zfshandao.com	9/14/2026
zeusboladaily.com	9/16/2026
zeus138dpd.site	9/14/2026
zaimloyoegoso.xyz	9/15/2026
zaemdozaplata.com	9/13/2026
yw8.xyz	9/12/2026
ypcikabrembang.org	9/13/2026
yously.wiki	9/23/2026
and 834 more

2606:4700:3037::ac43:938e 847 domains · here since 9/19/2026

Domain	On this IP since
zzzz1k.com	9/16/2026
zoventa.online	9/21/2026
zo88.tech	9/16/2026
zjbangyue.com	9/20/2026
zfshandao.com	9/14/2026
zeusboladaily.com	9/16/2026
zeus138dpd.site	9/14/2026
zaimloyoegoso.xyz	9/15/2026
zaemdozaplata.com	9/13/2026
yw8.xyz	9/12/2026
ypcikabrembang.org	9/13/2026
yously.wiki	9/23/2026
and 834 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!