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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.
Document a real hardware, privacy or security build that uses your tool, including schematics, progress logs and a natural official-project link.
Publish your clean benchmark or open dataset plus a reproducible notebook, with proper licensing and the canonical project URL in the data card.
Find an existing question where your specific utility is a genuine option, add it accurately, and document balanced pros and cons.
Set up a profile with your site in the website field, then answer computer questions where your guide genuinely helps.
Publish a detailed build or usage tutorial around your original workflow, with the relevant tool link only where it helps readers.
Publish a documented synthetic privacy, redaction, accessibility, or scam-detection benchmark dataset.
Post how to embed your tool calculators in Ghost after /embed live.
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.
Post to relevant subs with context: SideProject, SaaS, webdev.
A good fit for IT and admin tools: answer IT pro questions and fill in your vendor or personal profile.
After security readiness, launch a properly scoped public VDP or bounty program with safe-harbor language, assets, response SLAs and funded rewards where applicable.
Publish a detailed hardware or IoT project that genuinely uses your tool, with code, parts, instructions and an external tutorial link where useful.
Run a genuine privacy, online-tools or accessibility community and reference your tool only where it supports the group or event.
Publish backlink tracker/content calendar template.
Share tools or extensions that work with Cursor in the showcase area.
Announce your Elixir library or project in the libraries category.
Sign in with your domain to create a user page and document how your site works.
Write a technical article or answer forum threads, and link your site in your profile.
Post your Mac or iOS app in the developer-allowed app sections.
Share what you built with the OpenAI API in the community showcase category and answer questions.
Discuss your Python packaging or tooling project in the relevant category.
Share your Rust crate or tool in the announcements category.
Announce open-source Swift packages in the related projects area.
Share your project in the creation-sharing node with a Chinese description.
Answer accessibility questions where you have real expertise and link your profile to your site.
Help Ubuntu users with complete answers and keep your site link on your profile.
Join, help with tech support threads and add your site to your profile where allowed.
Write a Chinese-language technical post about your tool or open-source project.
Help with consumer tech questions and list your website on your profile.
Contribute to hardware threads and keep your site on your profile.
Answer shell and Linux questions and put your site on your profile.
Start a thread for your Android app in the right section and support users there.
Post build updates with profile/site link.
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.