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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.
Contribute your provider bundle with useful privacy or security components and provider documentation links.
Create a genuine founder profile and share a useful build story or tutorial with a relevant link.
Create and test a Portfile for your open-source CLI or desktop app, including its canonical homepage.
Build and teach a live, project-based cohort on creating local-first privacy tools or accessible web utilities, supported by a substantive public syllabus and real instructor profile.
Release a useful Java or Kotlin SDK and include the project homepage, source control, license and developer metadata in the POM.
Create a useful Emacs client for your public API, host its source openly and submit a MELPA recipe pull request.
Publish an original, human-verified privacy or accessibility benchmark with complete methodology, provenance, schema, license, and a relevant project citation.
Share your openly licensed digital-safety lesson pack or Moodle activity and curate it into an educator-focused collection.
Create a working Nagios check or addon for your API/privacy-health signal, register, and submit the project with source and website links.
Build and test a Netlify extension, publish it publicly, then submit it for review and directory listing.
Add and test a Nix expression for your genuine release with description, homepage, license and maintainer metadata.
Publish a machine-readable privacy, accessibility, or scam-pattern dataset or API and complete its evidence-based public certificate.
Publish your small local-first classifier for privacy, secret detection, or defensive content analysis.
Suggest your tool and complete its B2B software profile.
Build a functional OPA/Rego privacy-policy integration or developer tool, document it, then add its ecosystem entry and logo through the official docs repository.
Submit a complete, openly licensed privacy/digital-safety textbook already used in higher education.
Publish a free mini-course on privacy, redaction, scam detection, or accessibility with genuine your tool exercises in the curriculum.
Publish a documented, de-identified ML-ready benchmark such as labelled phishing, homograph, or accessibility test cases with provenance and an open license.
Create a public OBS project and package that builds your tool for supported Linux distributions with upstream links.
Publish a genuinely useful free privacy checklist, redaction template, or safety workbook that complements your tool and has standalone value.
Build a QGIS plugin that checks selected layers or exports for sensitive coordinates and metadata, then creates a safer copy.
Create a public Quarto extension for privacy, accessibility, or document checks with documentation, examples, and a license, then propose it for listing.
Publish a carefully annotated collection of trustworthy privacy, accessibility, and safety resources, including only your tool pages that genuinely fit each section.
Package your legitimate Ruby client or utility and add homepage and source metadata before pushing the gem.
Build your Sanity Studio plugin, publish it to npm, and submit it to Sanity Exchange with documentation and support links.
Publish a coherent multimedia field guide on privacy, scam evidence, or accessible documents with cited your tool demonstrations.
Publish a public reproducible privacy-safe research workflow with a Snakefile, README, configuration, catalog metadata, and tests.
Ship your installable Linux app or CLI as a snap with a complete store listing and website link.
Publish a working browser demo or starter that teaches your integration, with accurate title, description and canonical documentation link.
Apply only if the legal entity behind your tool meets DPIIT eligibility, innovation, age, and turnover conditions.
Build a useful Statamic/Laravel addon around your workflow, publish it on Packagist and submit the product to the official marketplace.
Build a Storybook panel or preset that reports metadata, accessibility, broken-link or deployed-story audit findings through your tool, then publish it as an npm addon.
Build your useful Strapi plugin and submit its package, repository, documentation, and your tool support URL.
Deploy your educational data or AI demo from a public GitHub repository and include a useful link to the full tool or documentation.
Add a public Swift package with Package.swift, semantic-version tags, documentation and your homepage link.
Create the real designer/founder profile and add your original product-design or accessibility project with collaborators, role, process, and official URL.
Build a legitimate Thunderbird MailExtension, complete its add-on page and submit it through the Developer Hub.
Create your functional ToolJet plugin with clear documentation and tests, then submit it to the marketplace through the official contribution flow.
Create a founder or developer portfolio and publish your build case study with screenshots, process, outcomes, and the live project link.
Build a reusable Typst privacy, accessibility, or document-checking package with a valid manifest, docs, examples, and tests, then submit it to the official packages repository.
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.