200 apps like Expiroo | Domain & Uptime Monitoring, closest match first.
SyAgent
Free Server & Uptime Monitoring
StatusGator
Cloud Monitoring with the #1 Status Page Aggregator
CertKit
Manage SSL Certificate issuance, renewal, and monitoring
SiteBot.dev
Monitor your websites and APIs 24/7 with instant alerts
CertPilot
Monitor DNS, SSL and email auth. Manage renewals, assets, people and access
Peekaping
Open-source uptime monitoring solution
Sentinelboard
Know your site is down before your customers do. Monitoring for SaaS builders
Dotily
DNS and WHOIS monitoring with smart domain scoring and grace window tracking
DomainsDB API
Search Domain Status
Apitally
API monitoring & analytics made simple
URL Guard
Monitor URLs at scale. Catch broken links & 404s
Karma.Domains
The best domain auction aggregator & expired domain SPAM analyzer
Whois JSON API
Effortlessly retrieve accurate WHOIS details for any domain with our REST API
Monitoro
Monitor website updates and react to changes without code
UptimeBoss
Monitor websites, SSL certificates, ports, heartbeat jobs from one platform
Sessy
Track SES deliveries, bounces, opens and clicks in a self-hosted dashboard
FoundersDeck
EU-hosted reliability toolkit for indie SaaS founders
Cronitor
Simple monitoring for any application
exit1.dev
Know when your site breaks
DomainDetails Pro
Advanced domain research & monitoring
Superlog
Automate all routine engineering tasks
HostDroplet Tools
Free DNS, SSL, SEO, email, and website testing tools
WatchCron
Cron Job & Heartbeat Monitoring for Developers
Opskitty
Monitoring Websites
Monitor Postmaster Tools by Stack Moxie
Daily tracking for spam rate and domain reputation
WhosBuilt
WhosBuilt inspects site for tech stack, hosting, DNS, creator metadata, etc
AliveCheck.io
Never miss a heartbeat: monitoring for services and CronJobs
Watchgoose
Cron Job Monitoring & Heartbeat Alerts
CertObserver CT Search
Certificate Transparency search with grouped results
DownStatus
Free JSON API to check real-time status of 500+ services. No auth needed
Zuzia
AI-powered server monitoring and task automation for Linux and VPS
WatchSumo
Painlessly monitor your website uptime
Domainyze
Professional domain lifecycle monitoring & portfolio intelligence
Free DMARC generator
Create DMARC record and boost your email deliverability
Cronhooks
Schedule Webhooks, One-Time or Recurring
Echobell
Instant alerts for various scenarios with webhooks and emails
DMARC Checker
Check if your emails are DMARC, DKIM, and SPF compliant
TinyCert
Certificates as a service
HostRepute
Monitor IP and domain reputation across 80+ sources, SNDS, Google Postmaster
Steampipe
Select * from cloud;
Posthook
Webhook Scheduler for Reminders, Follow-Ups, and Expirations
LocalCan™
HTTPS domains for local network + Public preview URLs
Fivenines
Server, Network, Uptime & Cron Monitoring in One Platform
Web Check
All-in-one OSINT tool, for quickly checking a websites data
HostedScan
Online vulnerability scanning platform
Probe
32 automated API compliance checks in 5 seconds. Free, no account
Phare
European Uptime Monitoring & Incident Management
Backlink Monitor
Get notified when your backlinks change
TechStackTrack
Track, optimize, and benchmark your tech stack and auto-generate security pages
Operational
Track critical events, receive instant notifications