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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.
Apply through the official Linux Foundation enrollment if your tool will genuinely implement or contribute to C2PA standards.
Create a founder blog that shares compact product lessons and full tutorials linking to your relevant page when useful.
Sponsor your tool’s strongest browser or JavaScript-based developer utility with copy tailored to working JS developers.
Run a clearly disclosed campaign for your tool’s developer and security tools across relevant Changelog podcasts or newsletters.
Use a real writer or designer identity, add authored your tool work as a properly credited clip or case study, and include the personal website link in the profile.
Place your targeted campaign in TLDR Dev, InfoSec, AI, Tech, Product, or Founders with a focused landing page.
Document your tool privacy, accessibility, and tool-discovery UX as a credible case study and link to the live product from relevant case-study text.
Start your focused field-notes blog and publish useful privacy, accessibility, and security explainers with natural source links.
Publish a simple blog by syncing a folder of text or Markdown files, and link to your own projects.
If you use a HEY account, publish blog posts by email to your public HEY World page with links to your work.
Turn a public Notion page into a fast website with a custom domain or subdomain and link it to your product.
Host a podcast with its included website and add links to your site in episode notes.
Host your podcast and use the included show site and notes to link to your website.
Build a site or blog on a paid plan, typically for a project or brand page that links to your main product.
Host a podcast and use the built-in website and show notes to link to your product.
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.