Dev tools · alternatives · 2026
24 alternatives to OnlineOrNot Browser Checks
Browser-based uptime checks for your critical pages.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. OnlineOrNot Browser Checks launched in 2021; newer entries below may have overtaken it.
- 1
Check the SEO, speed & security of 100s of pages in a click!
2018 · its alternatives →
- 2
- 3
- 4
- 5IM
Yes, it's open source: https://github.com/lissy93/web-check :) Why I'm building this? There are a lot of tools out there for discovering meta and security data relating to a website, IP or server. But currently, there isn't anything that does everything, all in one place and without a paywall/ user sign up. It's still a WIP, and I'm working on a new version, with some more comprehensive checks, so any feedback would be much appreciated :)
2024 · v1.web-check.xyz · its alternatives →
- 6
- 7
Check your website's SEO, analyze competitors and keywords
2019 · its alternatives →
- 8UW
2024 · uptime.website · its alternatives →
- 9CF
2018 · checkbot.io · its alternatives →
- 10
- 11
- 12
- 13
- 14
- 15
- 16
Instant uptime alerts. Stay online, stay confident.
Dec 2025 · web-alert.io · its alternatives →
- 17
A tool for SEO analysis of website pages and finding errors
2022 · its alternatives →
- 18
- 19
Is your website available worldwide? Let’s find out!
2024 · odown.com · its alternatives →
- 20SC
2012 · servercheck.in · its alternatives →
- 21
- 22
- 23
Website monitoring that catches what uptime tools miss.
Mar 2026 · getsitewatch.com · its alternatives →
- 24
Free Website Down Checker and Monitoring Tool
2025 · checksitestatus.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →