koa.dev

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

koa.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.

3,242 other domains share an IP address with it.

The most recent crawl returned the page title “koa.dev — koa-cli, a terminal-native AI coding agent” and 35,353 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	3,242	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": "koa.dev"}'

Create a free account Read the API docs

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Last SSL certificate

Issuer	Let's Encrypt
Valid from	9/20/2026
Valid to	12/19/2026
Time until expiry	59 days

Last successful crawl

Title	koa.dev — koa-cli, a terminal-native AI coding agent
Description	koa-cli is a terminal-native AI coding agent built with AI, solo: approval-gated edits with diffs, plan mode, MCP with OAuth 2.1, hooks, subagents, an ACP server for Emacs and Zed, and a headless JSON mode. 2,600+ passing tests, 213 commits since May 2026.
Content-Length	35,353 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
104.21.32.104	3/30/2026
172.67.185.141	3/30/2026
198.185.159.144	5/26/2024

IPv6 address	Last updated
2606:4700:3032:0:0:0:ac43:b98d	6/28/2026
2606:4700:3034:0:0:0:6815:2068	6/28/2026
2606:4700:3035:0:0:0:6815:2068	3/30/2026
2606:4700:3037:0:0:0:ac43:b98d	3/30/2026

Mail server	Priority	Last updated
mail.koa.dev	10	4/13/2026

Name server	Last updated
dana.ns.cloudflare.com	3/30/2026
wesley.ns.cloudflare.com	3/30/2026
ns63.domaincontrol.com	1/31/2026
ns64.domaincontrol.com	1/31/2026
ns-cloud-b1.googledomains.com	12/10/2023

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

104.21.32.104 815 domains · here since 9/20/2026

Domain	On this IP since
zzrhdb.com	9/18/2026
zum-trompeter.de	9/18/2026
zuhernica.ru	9/29/2026
zogtyhjgtvhgtbh.store	9/17/2026
zhenjiumall.com	9/13/2026
zhdcorp.com	10/19/2026
zexo.me	10/12/2026
zerkalo-leonbets2816.xyz	9/14/2026
zephyrbiome.com	9/13/2026
zelyticsacademy.com	10/9/2026
zack.world	10/3/2026
zachrwong.info	9/28/2026
and 802 more

172.67.185.141 815 domains · here since 9/20/2026

Domain	On this IP since
zzrhdb.com	9/18/2026
zum-trompeter.de	9/18/2026
zuhernica.ru	9/29/2026
zogtyhjgtvhgtbh.store	9/17/2026
zhenjiumall.com	9/13/2026
zhdcorp.com	10/19/2026
zexo.me	10/12/2026
zerkalo-leonbets2816.xyz	9/14/2026
zephyrbiome.com	9/13/2026
zelyticsacademy.com	10/9/2026
zack.world	10/3/2026
zachrwong.info	9/28/2026
and 802 more

2606:4700:3032::ac43:b98d 806 domains · here since 9/20/2026

Domain	On this IP since
zzrhdb.com	9/18/2026
zum-trompeter.de	9/18/2026
zuhernica.ru	9/29/2026
zogtyhjgtvhgtbh.store	9/17/2026
zhenjiumall.com	9/13/2026
zhdcorp.com	10/19/2026
zexo.me	10/12/2026
zerkalo-leonbets2816.xyz	9/14/2026
zephyrbiome.com	9/13/2026
zelyticsacademy.com	10/9/2026
zack.world	10/3/2026
zachrwong.info	9/28/2026
and 793 more

2606:4700:3034::6815:2068 806 domains · here since 9/20/2026

Domain	On this IP since
zzrhdb.com	9/18/2026
zum-trompeter.de	9/18/2026
zuhernica.ru	9/29/2026
zogtyhjgtvhgtbh.store	9/17/2026
zhenjiumall.com	9/13/2026
zhdcorp.com	10/19/2026
zexo.me	10/12/2026
zerkalo-leonbets2816.xyz	9/14/2026
zephyrbiome.com	9/13/2026
zelyticsacademy.com	10/9/2026
zack.world	10/3/2026
zachrwong.info	9/28/2026
and 793 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!