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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.
Build a pipeline plugin that runs your tool checks on selected artifacts and posts configurable pass, warn, or fail annotations.
Build a DokuWiki privacy, redaction, accessibility, or secure-export plugin, publish its code and create the canonical plugin page used by the extension directory.
Publish a functional Eclipse plugin for your developer use case, then create a complete marketplace listing with official support and source links.
Create a functional Framer plugin for accessibility, metadata, responsive-content, or privacy checks and publish it with your tool documentation.
Register an authorized Indian business seller and list only real eligible your tool services with accurate catalogue details.
Create a functional Hexo plugin for your relevant capability, publish the package, then add its record to Hexo's official plugin data repository.
Build a unique and useful Obsidian plugin, create valid releases and submit it to the community plugin directory.
Add native OpenTelemetry support or build your useful instrumentation or utility, then submit its registry metadata and documentation links.
Build your tool triggers/actions, submit them to the public registry by GitHub PR, and address review feedback.
Build a Pipedrive OAuth integration for safe note export, duplicate cleanup, or PII auditing and submit your unique listing.
Build a public RingCentral integration around call-note privacy or safe file sharing and complete the profile with your tool documentation, privacy, and support links.
Build a TYPO3 backend extension for selected content or media PII, metadata, and accessibility checks.
Create your Umbraco integration package and point its NuGet project URL plus documentation to your tool.
Build a production Webex integration or bot for deliberate sharing of your tool checklists or sanitized files, then submit its branded App Hub profile.
Submit your tool widgets plugin after /embed is live.
Build your redaction, accessibility, image, or privacy add-on and submit its public listing.
Create a real source connector that lets consenting users export appropriate your tool data, provide tests and documentation, and contribute it to Airbyte's public connector catalog.
Build an OAuth Asana component that launches your audit or attaches a generated report, then submit complete company and support details.
Create a tested Auth0 Action that invokes your relevant privacy or security workflow and submit through the Marketplace Partner Portal.
Build a practical Blender add-on for media privacy, metadata or workflow automation and upload its tested extension package with documentation.
Build a Canva app that sends chosen design assets to your accessibility, metadata, or privacy check and returns useful results inside Canva.
Build a Kafka Connect source or sink that sends only explicitly selected records to your tool privacy or redaction checks and returns structured results.
Apply as a Datadog Technology Partner and build a production-grade integration that sends meaningful your tool telemetry, includes dashboards and documentation, and is useful to shared customers.
Build an Elastic package that ingests legitimate your tool logs, metrics, or traces and supplies mappings, pipelines, dashboards, documentation, sample data, and automated tests.
Build your useful privacy-preserving extension, submit a signed build, and provide honest homepage, permissions and privacy disclosures.
Build your real documentation/privacy integration, publish it as public, test it, then submit for GitBook review.
Build a panel, data-source or app plugin, validate and package it, then submit it with project links and test data.
Build and maintain a genuinely useful Home Assistant integration for your mature service, including the required Python client library, tests, documentation, and a focused Core pull request.
Apply with a real designer portfolio and publish your original -themed privacy, safety, accessibility, icon, illustration, 3D, or Lottie pack.
Join the partner platform and create your secure service with genuinely useful triggers, queries, and actions, pass endpoint tests and review, then publish helpful Applets for real user workflows.
Build an Intercom app for intentional conversation privacy scanning or sanitized export generation and include your clear install or learn-more URL.
Build a genuine Joomla extension, create a developer profile and submit a complete listing with the official project website.
Build and host a useful Jotform widget, register it with full documentation and send it for approval.
Build your standalone integration package with tests and submit the required LangChain documentation PR.
Build and test a Netlify extension, publish it publicly, then submit it for review and directory listing.
Build a signed Nextcloud app for local document sanitization or privacy checks, publish releases, and maintain App Store compatibility.
Build a QGIS plugin that checks selected layers or exports for sensitive coordinates and metadata, then creates a safer copy.
Publish your maintained open-source service template with safe variables, health checks, documentation and a demo.
Build a maintained Redmine plugin that creates privacy or security audit tasks, document supported versions, then register it under an authenticated developer account.
Build your Sanity Studio plugin, publish it to npm, and submit it to Sanity Exchange with documentation and support links.
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.