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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.
Create your tool company profile with accurate product, team, media, and website details, then submit it for verification.
Upload or design your useful privacy report and add contextual external links before public sharing.
Write and publish a substantial original handbook on local-first privacy, web safety, or accessible-tool engineering, including reproducible examples and relevant your tool references.
Build a small founder-written knowledge blog with genuinely useful local-first privacy and file-safety guides.
Submit your tool developer utilities; GitHub-auth community.
Create a comprehensive tutorial around a reusable privacy, file-processing, accessibility, or security technique, with your tool only as a natural example.
Build a genuine Joomla extension, create a developer profile and submit a complete listing with the official project website.
Join the writer community and publish data science or ML articles, which go through a light editorial review.
If you blog about PostgreSQL, register your feed so your Postgres posts are syndicated on the planet.
Ask to have your Python-tagged blog feed added so your Python posts appear on the aggregator.
Submit a strong branding, UI or illustration project for possible feature.
If you serve Chinese users, submit your AI tool with a Chinese description.
Open a pull request to the awesome-go list with your Go library.
Canadian startups can send launch, funding or growth news to the editorial team.
Create official your tool update/tutorial blog if needed.
Register and apply to become an author, then publish articles on customer experience, CRM or service.
Create an account and submit an article on big data, AI or emerging technology for editorial review.
Submit a design or architecture project through their DIY submission tool with images and text.
Register as a member and publish blog posts on fintech, payments or banking technology.
Document a project that uses notable typography and credit your site or studio.
Create an account and publish a member blog on game development, tools or postmortems.
Add your Hugo theme following the theme repository submission steps.
Add your indie game, post updates and link your studio site.
Send creative work for possible editorial coverage.
Add your static site generator or headless CMS through a pull request to their GitHub repo.
Join the partner program to syndicate your existing Java or software development posts, or submit original articles.
Submit your tool for startup feature/review.
Publish your MCP server or agent to their marketplace with docs and a repository link.
Create a community account and submit an article or short insight on software testing for review.
Send release notes for notable versions of your desktop software to their software news section.
Open a pull request to the Nuxt modules repository to list your module.
Send funding, launch or milestone news if you are a European startup.
Claim your vendor profile and invite verified users to review your software.
Submit a finished creative project with images and credits.
Service businesses can create a profile, which is shared with Clutch, and collect verified reviews.
Creative and design agencies can create a profile and add portfolio items.
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.