simpleflags.io

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

simpleflags.io 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.

41,977,754 other domains share an IP address with it.

The most recent crawl returned the page title “SimpleFlags.io - Feature flags made simple” and 33,596 bytes of HTML.

Domain properties

Property	Value	Explanation
Top-level domain	.io	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	41,977,754	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": "simpleflags.io"}'

Create a free account Read the API docs

Similar websites

Website	Similarity
supaship.com Supaship: Feature Flags, AI Configs & Rollouts for Fast and Safe Releases Supaship is a feature flag and AI config platform for software teams. It lets developers toggle features, tune JSON-backed AI settings, run percentage rollou...	86 %
bucketeer.io Bucketeer - Feature Flag Management and A/B Testing platform Feature Flag and A/B Testing Managment platform	84 %
fflags.net Feature Flags Service - Flexible Feature Management for Your Products Centrally manage feature flags across all your projects - fast, secure, and without unnecessary releases. SDKs for React, PHP, Java, Python, Vue, Angular, No...	84 %
floodgate.io Feature Flag Management for Engineers & Product Teams - Floodgate.io Feature flag management for engineers and product teams. Reduce risk and enable continuous integration and deployment in your development workflow	83 %
fturex.com ftureX \| Feature Flags & Toggle Management for .NET, React & Vue ftureX is a feature flag and toggle management platform for .NET, React, and Vue 3. Ship features fearlessly with instant toggles, role-based access control,...	83 %
flagster.fr Flagster Integrate feature flag blazingly fast	83 %
flaggr.dev Flaggr — Feature Flags for Teams That Ship OpenFeature-compatible feature flag platform. Real-time targeting, type-safe SDKs, gRPC and REST protocols, and built-in analytics for flag impact, adoption...	83 %
featuresignals.com FeatureSignals — Open-Source Feature Flags \| Sub-Millisecond Eval The control plane for software delivery. FeatureSignals provides sub-millisecond feature flags, AI-powered stale flag detection, A/B experimentation, and Ope...	83 %
greenflags.dev GreenFlags — Feature Flag Management & Feature Toggles at the Edge GreenFlags is a feature flag management platform for progressive delivery. Ship faster with feature toggles, kill switches, canary releases and A/B testing —...	83 %
zmoothy.com Zmoothy \| Feature Flags, Experimentation & Release Management Zmoothy is a feature management platform for engineering teams. Roll out features safely with environment targeting, run A/B experiments, schedule releases,...	82 %
pullwish.com Pullwish – The all-in-one suite for indie developers Public feedback board, roadmap and changelog for indie developers, with an MCP server and Cursor plugin so your coding agent knows what to build next. Free p...	82 %
tggl.io Tggl.io \| Feature flags and release management Tggl lets developers ship code faster and safer with feature flags and makes product teams more efficient with release management	82 %
toggly.io Innovate Faster with Feature Flags - Toggly \| Feature Flags for Better Software - Toggly Toggly makes it easier for software developers to build better software faster by making it easy to test, release, and measure features without the risk of d...	82 %
flagppe.com Flagppe Take command of feature delivery with Flagppe, the feature flag platform crafted for teams aiming for deployment excellence.	82 %
flagfish.co FlagFish — Ship features without fear Deploy with confidence using intelligent feature flags. Control releases, test in production, and roll back instantly.	82 %
featurely.no Featurely — The All-in-One Suite for Indie Developers Stop juggling five tools. Featurely combines customer feedback, error tracking, uptime monitoring, and feature flags in one affordable dashboard. Built for i...	82 %
flagforge.app FlagForge — Open Source Feature Flags, Self-Hosted Open-source, self-hosted feature flag platform. Ship features safely with targeting rules, percentage rollouts, and multi-environment support. Free forever,...	82 %
configcat.com ConfigCat - Feature Flag Service for Teams ConfigCat is a feature flag service with unlimited seats, awesome support, and a reasonable price tag.	81 %
toggledroid.dev ToggleDroid - Feature Flags for Modern Teams Ship faster with confidence. ToggleDroid is the feature flag platform built for developers who ship.	81 %
toggledroid.io ToggleDroid - Feature Flags for Modern Teams Ship faster with confidence. ToggleDroid is the feature flag platform built for developers who ship.	81 %

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	8/2/2026
Valid to	10/31/2026
Time until expiry	10 days

Last successful crawl

Title	SimpleFlags.io - Feature flags made simple
Description	Feature flags made simple
Content-Length	33,596 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
104.21.65.3	6/6/2026
172.67.138.173	6/6/2026
188.114.96.0	5/21/2026
188.114.97.0	5/21/2026
104.21.65.3	5/6/2026

IPv6 address	Last updated
2606:4700:3031:0:0:0:ac43:8aad	6/23/2026
2606:4700:3032:0:0:0:6815:4103	6/23/2026
2606:4700:3034:0:0:0:6815:4103	5/28/2026
2606:4700:3035:0:0:0:ac43:8aad	5/28/2026
2a06:98c1:3120:0:0:0:0:0	5/21/2026

Mail server	Priority	Last updated
route2.mx.cloudflare.net	12	7/10/2024
route1.mx.cloudflare.net	59	7/10/2024
route3.mx.cloudflare.net	78	7/10/2024

Name server	Last updated
chris.ns.cloudflare.com	4/28/2024
hadlee.ns.cloudflare.com	4/28/2024

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

188.114.96.3 10,537,641 domains · here since 9/28/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	9/13/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzyl1.cn	10/14/2026
zzzzzwwwppodjfdkodkloq.com	9/28/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
zzzzzn.com	9/20/2026
and 10,537,628 more

188.114.97.3 10,537,640 domains · here since 9/28/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	9/13/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzyl1.cn	10/14/2026
zzzzzwwwppodjfdkodkloq.com	9/28/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
zzzzzn.com	9/20/2026
and 10,537,627 more

2a06:98c1:3120::3 10,451,238 domains · here since 9/28/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	10/19/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzyl1.cn	10/14/2026
zzzzzwwwppodjfdkodkloq.com	9/28/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
zzzzzn.com	9/20/2026
and 10,451,225 more

2a06:98c1:3121::3 10,451,235 domains · here since 9/28/2026

Domain	On this IP since
zzzzzzzzz.xyz	10/6/2026
zzzzzzzzz.org	10/19/2026
zzzzzzzzum.icu	10/13/2026
zzzzzzzoes.site	10/16/2026
zzzzzzys.com	9/19/2026
zzzzzyl1.cn	10/14/2026
zzzzzwwwppodjfdkodkloq.com	9/28/2026
zzzzzssss55.online	9/16/2026
zzzzzssss55.buzz	9/20/2026
zzzzzsss77.online	9/20/2026
zzzzzssj.com	9/14/2026
zzzzzn.com	9/20/2026
and 10,451,222 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!