# Marlo

> Marlo is a free, open-source (AGPL-3.0) website audit and AI marketing agent toolkit. Paste a URL and get a crawl-based SEO audit with a plain fix for every finding. No signup. It can also be self-hosted.

## Try it
- [Free SEO audit](https://app.marlo.mlforge.in/audit): paste any URL, no signup.
- [Free SEO checkers](https://marlo.mlforge.in/marlo/tools): canonical tag, Open Graph tags, meta description and H1, with the fix for each.

## Learn
- [SEO issues on personal websites: data from 365 audits](https://marlo.mlforge.in/marlo/data/personal-site-seo): what the audit found, with caveats. Archived with a DOI: https://doi.org/10.5281/zenodo.24107369
- [SEO fix guides by platform](https://marlo.mlforge.in/marlo/fix): add a canonical tag, meta description or Open Graph tags in WordPress, Shopify, Next.js and Webflow.
- [Best AI CMO tools for founders in 2027](https://marlo.mlforge.in/marlo/best-ai-cmo-tools): price, open-source status, strengths and limits of five tools, prices checked 10 Nov 2026.
- [Why isn't my site showing in Google? 5 checks founders skip](https://marlo.mlforge.in/marlo/blog/why-isnt-my-site-showing-in-google): noindex, robots.txt, canonical, page clarity and Search Console.
- [Canonical tag vs 301 redirect](https://marlo.mlforge.in/marlo/blog/canonical-tag-vs-301-redirect): which one to use and when.
- [Open Graph image size and blank link previews](https://marlo.mlforge.in/marlo/blog/open-graph-image-size-blank-link-preview)
- [What is llms.txt?](https://marlo.mlforge.in/marlo/blog/what-is-llms-txt): the format, and what it can and cannot do.
- [Meta description length](https://marlo.mlforge.in/marlo/blog/meta-description-length): about 150 characters, under 160.
- [How to get cited by ChatGPT and Perplexity](https://marlo.mlforge.in/marlo/blog/get-cited-by-chatgpt-perplexity): what you can and cannot control.
- [Building Marlo: an open-source AI CMO](https://marlo.mlforge.in/marlo/blog/building-marlo-open-source-ai-cmo)
- [Why Marlo is AGPL and self-hostable](https://marlo.mlforge.in/marlo/blog/why-self-hostable)

## Product
- [Marlo home](https://marlo.mlforge.in/marlo)
- [Pricing](https://marlo.mlforge.in/marlo/pricing): the open-source core is free. Hosted access is optional.
- [Source code](https://github.com/Kumar2421/okara-alternative)