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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.
Submit your public API with docs link, SDKs and authentication details.
Submit only after public privacy policy and client-side privacy proof.
Suggest your JavaScript or TypeScript project through their GitHub issue process.
Share Cursor rules or list your MCP server, linking back to your project.
Submit your site if it has a polished dark design.
List your registered business as an eligible IT supplier and complete its public company profile and website field.
Create business profile only if eligible with real business details.
Create brand/founder profile with verified links.
Add your remote-friendly company with a description, tech stack and website.
Claim or add your legal business, complete its description and logo, and include the verified website link.
Submit your MCP server with its repository, install steps and description.
Publish useful n8n workflow linking your tool resources.
If the founder contributes to research or innovation, create an ORCID record and add your tool under public website and relevant work links.
Sign up, find or add your company and claim the profile to edit the description and website.
Create a product page with visuals and a clear tagline, then share it so people upvote.
Create your truthful /founder profile or content page and add the website link where allowed.
Create your truthful /founder profile or content page and add the website link where allowed.
Add your tool if accepted; create company stack.
Create a genuine founder profile and share a useful build story or tutorial with a relevant link.
Create your truthful /founder profile or content page and add the website link where allowed.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Join the writer community and publish data science or ML articles, which go through a light editorial review.
Answer Android questions properly and add your site to your profile.
Answer Mac and iPhone questions in full, linking your own page only when it adds detail the answer cannot hold.
Upload a finished HTML5 game through the developer portal; it goes through a playtest phase before a full release, and the game page credits you as the developer.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Contact them to have your Windows or Mac software added to the catalogue.
Send your Windows or Mac software for review via their submission or contact page.
Register as source for B2B content quote opportunities.
Request writer access for the publication and submit engineering, cloud or DevOps articles via Medium.
Apply to become a writer for the In Plain English publications and submit clear programming tutorials.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Add your Mac app and keep version updates current so users get notified.
Submit your Windows utility with a PAD file or download link for editorial review.
Suggest your personal or independent blog through the site's suggestion option.
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.
Join the community and submit product management articles to the publication on Medium.
Submit freeware or shareware for Windows via their author submission page.
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.