A maintained list of 1,854 legitimate backlink sites: directories, profile creation sites, guest posting sites, launch platforms, registries and marketplaces. 1,532 are free or have a free tier, 44 usually give a dofollow link, and 772 have an estimated DA of 70 or more. Every row shows authority, link type, cost and effort, and links straight to the submit page.
Prepare and test a policy-compliant ebuild for your stable CLI, including accurate HOMEPAGE and source metadata, then work with a Gentoo developer or proxy maintainer for repository inclusion.
Reply to an issue or contact the editor with a link to a useful Go article or library you made.
Add your open-source repo via pull request so beginners find your labelled issues.
Set up your profile with skills, projects and a site link.
Complete your developer profile, including a link to your site or portfolio.
Port your functional desktop or CLI utility to Haiku, write and test a compliant recipe, then submit a feature-branch pull request to HaikuPorts.
Bookmark useful pages with a comment; popular entries reach Japanese readers.
Make a creator page and link your site, content and products.
Create business listing if eligible.
Submit your podcast RSS feed so it gets a show page.
Create your truthful /founder profile or content page and add the website link where allowed.
Sign in with your domain to create a user page and document how your site works.
Find your country's section and add or update your company entry.
Use the newsletter's link submission option to suggest a useful iOS or Swift article or tool.
Submit your open-source starter or theme for a static site generator.
Licensed attorneys can claim a free profile and link their firm site.
Submit a link to a Kotlin article, talk or library you published.
Claim your published papers, add plain-language summaries and link related resources.
Submit your Laravel tutorial or package through the site's community links or tip options.
Write a technical article or answer forum threads, and link your site in your profile.
Fill in your profile and add your website and GitHub links.
Eligible if your component is open-sourced.
Submit your macOS menu bar app with a short description and screenshot.
Post your Mac or iOS app in the developer-allowed app sections.
Submit a site, app or component built with Svelte.
Create profile; share privacy-first tools in relevant communities.
Submit your MCP server with a GitHub link and short description.
Create a profile, add your site and post original content.
Submit a licensed computational neuroscience model with code ZIP, publication citation, overview, contributors, and tags.
Add or claim your Canadian business profile and fill in your services and website.
Send the editor a link to a strong Node.js article, package or release.
Create a /now page about what you are focused on, then submit it through the site.
Build a maintained OctoPrint plugin for your credible -related workflow such as privacy-safe print logs or metadata checks, then register it through the official repository pull request.
Share what you built with the OpenAI API in the community showcase category and answer questions.
Register only after your tool launches a genuine open repository for reusable privacy/security research outputs.
Implement a genuine OpenFeature provider, hook or integration around your configuration or audit-health use case, publish it and add it to the ecosystem documentation.
If your app calls models through OpenRouter, set the referer and title headers so it shows in public app rankings.
Philosophers can create a profile listing works and a personal homepage.
Join an instance, add your website to your bio and share original images.
Set up a profile with your site link and post short updates.
Four steps that work for a new site, a SaaS or a side project. No paid link packages, nothing that risks a penalty.
Before submitting anywhere, have a one-line description, a 150-word description, a square logo and two or three screenshots ready. Every form asks for some mix of these.
Start with the free, quick rows: profile creation sites and free directories. They are one form each and build the entity signals search engines use to understand who you are.
Then pick a handful of high DA and dofollow sites that fit your niche, and write proper guest posts or launch posts for them. Ten relevant links beat a hundred random ones.
Note where you submitted and when. Recheck after a month, update stale descriptions, and never pay for bulk link packages: they put the whole site at risk.
Behind the list
Every row here starts as a line in a sheet, gets normalised into one of 16 groups, scored for cost, effort and impact, and written up with the steps to actually submit. The floor below represents that pipeline.
Open the sheet viewAn illustration of the AltF Backlinks floor: opportunities sourced at the back, vetted for cost and effort by the engineering pod, written up for outreach by the design pod, then tracked to placement along a line.
One-shot launches where timing and preparation decide the outcome.
Publications that accept contributed articles. Slow and editorial, but the links are earned.
Fast-growing listings specifically for AI-powered tools.
Extension, plugin and integration stores. Real review processes, real distribution.
Startup listings, beta lists and founder media.
General tool and software catalogues with real search traffic.
B2B review sites. Slow to approve, strong once live.
Package, image and docs hosting that carries real authority.
Showcases judged on craft. A good screenshot matters more than copy.
Write once, link back. Editorial standards vary widely.
Get quoted or distribute a release. Slower, higher ceiling.
Company and local listings. Unglamorous, consistently indexed.
Owned pages you control: company, founder, knowledge-panel entities.
Answer real questions. Never drop a bare link.
Brand surface and referral traffic more than link equity.
Everything that does not fit the buckets above.