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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.
Propose and contribute your standards-compliant -related bioinformatics privacy module, subworkflow, or full Nextflow pipeline.
Open a pull request to the Nuxt modules repository to list your module.
Create a meaningful NWB extension for privacy, provenance, or consent metadata and submit its staged-extension YAML through an official pull request.
Make a channel and link your website in the about section and video descriptions.
Submit your focused one-page landing page.
Create your truthful /founder profile or content page and add the website link where allowed.
Organize a rigorous life-science privacy-tool benchmark or participate with your eligible method and publish validated results.
Build a real openHAB add-on that integrates your home-network privacy or safety service, provide addon.xml, tests and documentation, then submit it upstream.
Build your OpenWrt-compatible service or utility for a real router/privacy/security workflow, add correct package metadata and tests, then submit it to the official feed.
Apply as a freelancer and set up your profile and service offers.
Add your personal site by opening a pull request on the project's GitHub repo.
Contribute your own photos or videos and link your site on your profile.
If your game is built with Phaser, submit it for their games and news coverage so it can appear on the site and in their newsletter.
Create expert profile and answer media queries.
Upload original images, vectors or videos and add a website link to your profile.
Publish an original benchmark or evaluation study of local-first privacy or security tooling with open code, data, and your tool implementation.
Share original printable models and link your website in your profile.
Ask to become a writer and submit Android or Kotlin articles through Medium.
Create your truthful /founder profile or content page and add the website link where allowed.
Sell well-tested prompts and link your site from your seller profile.
Create a blog by uploading Markdown files over SSH and link to your projects from your posts.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit a mature scientific Python package related to your privacy or accessibility workflow for public review and listing.
Build and test a legitimate QIIME 2 plugin for a microbiome-data privacy, validation or provenance use case, then distribute it through the QIIME 2 Library.
Editors, designers and marketers can apply for a professional profile.
Independently reproduce a published computational privacy or security result with open code and data, using your tool only where scientifically justified.
Organize the complete code, data, materials, and outputs behind your real evaluation study into a public citable box.
If your tool produces a research-grade R package, submit a presubmission inquiry and the package for open review.
Build a real ROS package for your robotics/privacy/safety workflow, release it through rosdistro and expose maintained README, documentation and source links in ROS Index.
Create a channel, upload videos and put your website in the channel description.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Publish your substantive privacy template, workbook, or creator resource with a complete description, original previews, and accurate licensing.
Send funding, launch or milestone news if you are a European startup.
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.
Publish an ebook and fill in your author profile, including your website.
Request a vendor listing for your business software and supply feature details.
Claim your vendor profile and invite verified users to review your software.
Apply to write for the publication and submit programming tutorials or developer stories through Medium.
Israeli startups can claim or request a profile and add product details and website.
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.