flagforge.app

flagforge.app serves a website of its own over HTTPS. It answers on both IPv4 and IPv6, with a valid TLS certificate.

3,502 other domains share an IP address with it.

The most recent crawl returned the page title “FlagForge — Open Source Feature Flags, Self-Hosted” and 15,925 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.app	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	no	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	3,502	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": "flagforge.app"}'

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	Let's Encrypt
Valid from	8/29/2026
Valid to	11/27/2026
Time until expiry	43 days

Last successful crawl

Title	FlagForge — Open Source Feature Flags, Self-Hosted
Description	Open-source, self-hosted feature flag platform. Ship features safely with targeting rules, percentage rollouts, and multi-environment support. Free forever, zero dependencies.
Content-Length	15,925 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
104.21.21.108	5/9/2026
172.67.198.70	5/9/2026
134.122.74.178	4/11/2026

IPv6 address	Last updated
2606:4700:3034:0:0:0:6815:156c	7/5/2026
2606:4700:3034:0:0:0:ac43:c646	7/5/2026
2606:4700:3031:0:0:0:ac43:c646	5/9/2026
2606:4700:3035:0:0:0:6815:156c	5/9/2026

Name server	Last updated
cosmin.ns.cloudflare.com	5/9/2026
katja.ns.cloudflare.com	5/9/2026
apollo.dns-parking.com	4/11/2026
athena.dns-parking.com	4/11/2026

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

104.21.21.108 882 domains · here since 9/14/2026

Domain	On this IP since
zpqscop.top	9/28/2026
zortikis.gr	9/19/2026
zorlenthars.com	10/11/2026
zm444.net	10/8/2026
zl99.xyz	9/13/2026
zjmz.com.cn	9/24/2026
zhoushan3.com	10/14/2026
zhibojd.cc	9/21/2026
zephyr-profit.com	9/17/2026
zedus.app	9/18/2026
zbasprb.cn	9/20/2026
zanesvillebraces.com	9/20/2026
and 869 more

172.67.198.70 882 domains · here since 9/14/2026

Domain	On this IP since
zpqscop.top	9/28/2026
zortikis.gr	9/19/2026
zorlenthars.com	10/11/2026
zm444.net	10/8/2026
zl99.xyz	9/13/2026
zjmz.com.cn	9/24/2026
zhoushan3.com	10/14/2026
zhibojd.cc	9/21/2026
zephyr-profit.com	9/17/2026
zedus.app	9/18/2026
zbasprb.cn	9/20/2026
zanesvillebraces.com	9/20/2026
and 869 more

2606:4700:3034::6815:156c 869 domains · here since 9/14/2026

Domain	On this IP since
zpqscop.top	9/28/2026
zortikis.gr	9/19/2026
zorlenthars.com	10/11/2026
zm444.net	10/8/2026
zl99.xyz	9/13/2026
zjmz.com.cn	9/24/2026
zhoushan3.com	10/14/2026
zhibojd.cc	9/21/2026
zephyr-profit.com	9/17/2026
zedus.app	9/18/2026
zbasprb.cn	9/20/2026
zanesvillebraces.com	9/20/2026
and 856 more

2606:4700:3034::ac43:c646 869 domains · here since 9/14/2026

Domain	On this IP since
zpqscop.top	9/28/2026
zortikis.gr	9/19/2026
zorlenthars.com	10/11/2026
zm444.net	10/8/2026
zl99.xyz	9/13/2026
zjmz.com.cn	9/24/2026
zhoushan3.com	10/14/2026
zhibojd.cc	9/21/2026
zephyr-profit.com	9/17/2026
zedus.app	9/18/2026
zbasprb.cn	9/20/2026
zanesvillebraces.com	9/20/2026
and 856 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!