lert.dev

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

lert.dev serves a website of its own over HTTPS. It answers on IPv4 only, with a valid TLS certificate and MX records for mail.

Its busiest IP address is shared with 638,612 other domains.

The most recent crawl returned the page title “Lert — Send a push notification to your phone in one HTTP request” and 24,839 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	only IPv4	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	799,834	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": "lert.dev"}'

Create a free account Read the API docs

Similar websites

Website	Similarity
getbzzz.app bzzz \| Push notifications for apps that don't have an app Send native iOS push notifications to your users with a single API call. No app development required. Free to start, scales to millions.	85 %
chegou.dev chegou — push notifications that just arrive Send an HTTP request, get a push notification on your phone. No account needed. Cross-platform.	85 %
bzzz.sh bzzz \| Native push notifications for your users bzzz lets organizations send native iOS push notifications to their users. No app development required. Sign up, get an API key, and start sending in minutes.	85 %
pinglet.dev Pinglet: push notifications from your scripts, servers and CI Pinglet turns one HTTP request into a native push notification on your phone. Send from CI, cron, webhooks or your app; your team subscribes with a link.	85 %
appsinseconds.com Apps in Seconds Describe an app and it’s on your phone, with a link you can send to anyone.	84 %
pushie.net Pushie Get notified the moment something happens.	84 %
simplestapi.com SimplestAPI: Make your Lovable app actually save data Saved data and logins for apps built with Lovable, Bolt, v0, or Replit. Describe what you need in plain English and it's connected in 2 minutes. No Supabase,...	84 %
itpush.dev Push Notification API for Developers Send real-time push notifications via REST API. Instant mobile alerts for server events, script completions, and deployments. Free plan available.	84 %
nodkit.dev Nodkit — Push notifications for developers Send push notifications to your iPhone with a single API call. Built for developers who ship.	84 %
timkhar-ads.com startupjs.ai — tell the AI what app you want. It’s already live. Describe your app in plain words and get a real, hosted, full-stack website plus a native mobile app — then keep changing it by chatting. Export everything a...	84 %
startupjs.ai startupjs.ai — tell the AI what app you want. It’s already live. Describe your app in plain words and get a real, hosted, full-stack website plus a native mobile app — then keep changing it by chatting. Export everything a...	84 %
mobezy.com Mobezy — Create Mobile Apps with AI. No Coding. No App Store. Mobezy lets anyone create mobile-optimized web apps using AI prompts. No coding, no account, no app store approval. Publish, share, and let anyone download a...	83 %
trigv.com Trigv \| Real-time events. Instant alerts for developers. Send instant native push alerts to your phone or desktop with one HTTP POST. Notification history stays on your device.	83 %
notibolt.com Notibolt — Push notifications on your own keys Open push infrastructure for iOS and Android. Deliver through APNs and FCM with credentials you control. Free while in beta.	83 %
notifican.com Notifican - Notifications management service Notifican is a notifications management service.	83 %
snappai.co Snapp AI — Build Mobile & Web Apps with AI in Seconds Snapp AI is a no-code AI app builder — turn your idea into a production-ready mobile or web app in seconds. Describe it and AI builds and ships it.	83 %
steplo.io Steplo — Build Apps Locally Build all the apps you need locally. No monthly subscription. Your data stays on your device. Bring your own API keys or pay only for the AI credits you use.	83 %
pushr.sh pushr: push notifications to your iPhone from any script Send a push to your iPhone from any script, server or bot with one HTTP request. Deploys, payments and alerts in one calm feed, with Live Activities, uptime...	83 %
blipnotify.com Blip: push notifications for your SaaS events Every signup, sale, and draft from your apps, as native push on your iPhone. One HTTP call to integrate.	83 %
lauther.app Lauther — your phone, for the software that isn't on it Lauther is a free notifications app for Android and iPhone. Anything that can make an HTTP request — a script, a server, a web app, an AI agent — can put a n...	83 %

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	9/17/2026
Valid to	12/16/2026
Time until expiry	53 days

Last successful crawl

Title	Lert — Send a push notification to your phone in one HTTP request
Description	Lert is the simplest way to send a push notification to your own phone. Download the app, get a unique URL, POST to it — your phone buzzes. No sign-up, no API keys, no SDK. Free for 1 channel and 50 notifications a day; Pro is $2.99/mo.
Content-Length	24,839 bytes

Title and description as published by the page itself in its own <title> and <meta name="description"> tags.

DNS history

IPv4 address	First seen
216.150.1.1	7/16/2026
216.150.16.1	7/16/2026

Mail server	Priority	First seen
lert-dev.mail.protection.outlook.com	0	7/16/2026

Name server	First seen
ns51.domaincontrol.com	7/16/2026
ns52.domaincontrol.com	7/16/2026

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

216.150.1.1 638,613 domains · here since 9/15/2026

Domain	On this IP since
zzzzhub.xyz	10/19/2026
zzzsg.com	10/17/2026
zzzpost.com	9/28/2026
zzzip.kr	10/8/2026
zzz.toys	9/23/2026
zzz.bingo	10/12/2026
zzz.art	10/8/2026
zzxgim.com	9/16/2026
zztbsw.info	10/4/2026
zzpzt.cn	9/14/2026
zzpwerkvinden.nl	9/15/2026
zzppy.nl	9/16/2026
and 638,600 more

216.150.16.1 161,221 domains · here since 9/15/2026

Domain	On this IP since
zzzzhub.xyz	10/19/2026
zzzsg.com	10/17/2026
zzz.legal	10/3/2026
zzyt87.com	10/15/2026
zzxwts.info	10/12/2026
zzxfqt.info	10/15/2026
zzpdld.info	10/16/2026
zzjprf.info	10/20/2026
zzim.site	10/11/2026
zzgyjx.com	10/19/2026
zzgarage.com	10/17/2026
zzentertainment.site	9/21/2026
and 161,208 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!