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It is a self-hosted, open-source, fancy uptime monitoring, and alerting system. It can monitor HTTP, HTTP with keywords, TCP, Ping, and even DNS systems! | Complete SEO audits in 60 seconds. Automated crawling, PageSpeed analysis, and prioritized fixes. |
Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / Ping / DNS Record / Push / Steam Game Server;
Fancy, reactive, fast UI/UX;
20 second intervals;
Multi languages;
Simple status page;
Ping chart;
Certificate info | Automated website crawling (up to 10,000 pages), Google PageSpeed Insights integration (desktop + mobile), Core Web Vitals analysis (LCP, INP, CLS), Indexability and robots.txt checking, Internal linking structure mapping, AI-powered issue prioritization, Mobile vs desktop performance comparison, Technical SEO recommendations, Client-ready PDF reports, Historical audit tracking |
Statistics | |
GitHub Stars 77.8K | GitHub Stars - |
GitHub Forks 6.9K | GitHub Forks - |
Stacks 43 | Stacks 0 |
Followers 34 | Followers 1 |
Votes 0 | Votes 1 |
Integrations | |
| No integrations available | |

Pingdom is an uptime monitoring service. When problems happen with a site that Pingdom monitors, it immediately alerts the owner so the problem can be taken care of.

Better Stack is a radically better infrastructure monitoring platform that calls the right person on your team if anything goes wrong. Schedule on-call duties, receive helpful alerts, and collaborate on solving incidents faster than ever.

It is all about helping you to keep your websites up. It monitors your websites every 5 minutes and alerts you if your sites are down.

Monitoring a website is one thing – finding the best way to alert you to downtime another. At StatusCake we give you as many options as possible to decide when & how often you’re contacted. Whether it’s by email, SMS, push notifications for iOS & Android or integration with third party apps including Zapier and PagerDuty – you decide how you want to be alerted and when!

updown is an online service that checks your website's status by periodically sending an HTTP HEAD request to the URL of your choice. It then notifies you by email or sms when your website is not responding correctly.

It monitors your website, dashboards, API's, and more and alerts your team when downtime happens. We also give you a Status Page which keeps your customers looped in and improves transparency.

It is a online SEO software for better website optimization. Build better websites quickly, easily and of course sustainably. It checks your complete website, by crawling all linked pages. All found pages with errors, problems with the on-page optimization or problems regarding the page content like duplicate content are collected and displayed in each check section.

Receive alerts when your website or API is down through emails, Slack or SMS, integrated with real time data and insights

It is an all in one uptime monitoring tool which monitors your URL from 10 locations around the globe ensuring that if your website ever goes down again, you get alerted within 60 seconds. It comes with advanced capabilities like SSL Monitoring, Advanced Alerting and more.
web-alert.io is a simple uptime and API monitoring service built for developers, indie hackers, and small SaaS teams who want clear, reliable alerts without enterprise complexity. It monitors websites and API endpoints, sends instant downtime alerts, checks SSL certificates, and tracks response times — all inside a clean, minimal dashboard. Setup takes under a minute, and there’s a free plan included. Perfect for small projects, micro-SaaS, client sites, and devs who just want to know when something is down.