Open-source Python library for SEO and SEM workflows, including crawling with Scrapy, robots.txt and sitemap parsing, SERP APIs, log file parsing and text analysis.
advertools.readthedocs.io
Page SpeedOpen SourceFree tier
Lighthouse
Open-source auditing tool built into Chrome DevTools and available as a CLI and Node module, scoring performance, accessibility, best practices and SEO.
What it is
Open-source auditing tool built into Chrome DevTools and available as a CLI and Node module, scoring performance, accessibility, best practices and SEO.
It sits in the page speed category, and also covers free utility, technical seo. It is built by Google, based in United States, and has been around since 2016. A public API is available for pulling data into your own reporting.
Documentation & guides
- Lighthouse Documentation · Tool Guide
- PageSpeed Insights · Tool Guide
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Alternatives & neighbours
9 tools sharing at least one category with Lighthouse.
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babbar.tech
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Korean keyword research tool for looking up search volume and analysing keyword demand, widely used for Naver and Google keyword work.
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