credited

credited vs a portfolio site, a README and LinkedIn

All three tell people what you built. None of them prove it. credited's proof is a tag shipped in the client's own site: nobody but the person who deployed it could put it there.

credited vs a portfolio site

What a portfolio proves
Nothing but your own word. Anyone can put a screenshot and a case study on a page.
What credited proves
The site itself carries your tag. CreditedBot re-checks it, so the proof stays current instead of going stale the day you stop updating a page.
What you write
Nothing. Paste one line in the site's <head>, or let your coding agent do it through the MCP, and your profile builds itself. NDA work still lists, without the name.
What it costs
A domain, hosting and the hours to design and maintain it. credited is free for up to 5 projects, €29 once for more.

credited vs a GitHub profile README

What a README proves
Nothing. It's a text file you edit yourself; a listed repo doesn't mean you shipped anything to production.
What credited proves
The tag is fetched from the live client site, not typed into a file in your own repo.
What you write
Nothing, and nothing to keep updating by hand. A README also can't show client or NDA work at all; credited lists it without the name.
What it costs
Free, and so is credited for up to 5 projects, €29 once for more.

credited vs LinkedIn

What a LinkedIn post proves
A claim in a post or the "Featured" section. Nobody checks it, and it scrolls out of sight in a day.
What credited proves
A standing profile CreditedBot keeps re-checking against the live site, not a post that ages out of the feed.
What you write
Nothing, and no need to post again every time you ship. Client work under NDA still lists, without the name.
What it costs
Free, and so is credited for up to 5 projects, €29 once for more.