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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.
Publish your reproducible testing, privacy-analysis or accessibility-evaluation method and cite relevant project resources.
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 your maintained open-source service template with safe variables, health checks, documentation and a demo.
Publish a carefully annotated collection of trustworthy privacy, accessibility, and safety resources, including only your tool pages that genuinely fit each section.
Build a maintained Redmine plugin that creates privacy or security audit tasks, document supported versions, then register it under an authenticated developer account.
Make your real public repository REUSE-compliant, register its Git URL, and link the resulting compliance page from project docs.
Package your legitimate Ruby client or utility and add homepage and source metadata before pushing the gem.
Create and locally test your Runtipi app with config, Compose metadata, safe secrets, screenshots, documentation, backups, and update behavior, then submit it.
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.
Find an existing question where your specific utility is a genuine option, add it accurately, and document balanced pros and cons.
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.
Submit your desktop or mobile app through their developer contact so it gets a download page.
Build a useful Splunk app or add-on for legitimate your tool security, audit, or operational data; package it with clear documentation, icons, screenshots, release metadata, and support details.
Host or claim your genuine show, verify the RSS email, and publish accurate episode notes with relevant HTTPS resources.
Submit your accurate profile with its strongest software category, live URL, features, pricing and logo.
Create your factual tool, workflow, or tutorial entry that genuinely serves social-science or humanities researchers.
Publish a working browser demo or starter that teaches your integration, with accurate title, description and canonical documentation link.
Build a valuable public start page of privacy and productivity resources, then submit it to Community Pages after adding your tool selectively.
Apply only if the legal entity behind your tool meets DPIIT eligibility, innovation, age, and turnover conditions.
Create or claim your tool company profile and add its official URL, product summary, founders, location, and verified company facts.
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.
Set up a profile with your site in the website field, then answer computer questions where your guide genuinely helps.
Publish your real OpenAPI definition publicly with an accurate description and external documentation URL.
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 real OSPO function or a tool that materially supports OSPO work, then contribute the logo and canonical URL by issue or pull request.
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.
Package your self-hosted privacy utility for umbrelOS, add required metadata and assets, test it on supported hardware, and submit the official app PR.
Build a polished Unity editor utility or SDK for your relevant service and submit it with demos, documentation and support details.
Register as a developer and upload your app or ask the team to list it.
Build your Vercel integration, distribute its page, gain adoption, then apply for Marketplace visibility.
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.