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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.
Participate as a real developer with original lessons and honest build stories; reference your tool only if a specific discussion genuinely calls for the working example.
Build a generic DHIS2 health-data de-identification or permission-audit app and submit it to App Hub for core-team review.
Use a real developer profile and contribute tested solutions on Discourse integrations, accessibility, or privacy only when the team has genuine implementation experience.
Build your Ecwid app, propose it, sign the partner agreement, and submit it for review with website and support links.
Create a structured open handbook on digital privacy or accessibility with reproducible your tool labs.
Register a substantive life-science privacy, medical-data de-identification, or research-data training resource hosted by your tool.
Create a genuinely useful package of tested security-header, HTML-meta, JSON-LD and webhook snippets with your tool validation examples, then submit it to the official Hub.
Submit your genuine -maintained database, reusable reporting standard, or data policy with complete stewardship metadata.
Create a COPR project, build maintained RPMs and add your official homepage and package documentation.
Build an open-source FreeCAD privacy/metadata or document-cleanup workbench, add package.xml metadata, and submit it to the curated Addons index.
Publish a substantive Glide template for privacy-safe records, evidence organization, or accessibility audits and link its your tool documentation where permitted.
Create a narrowly useful GNOME Shell extension, provide metadata and homepage or source information, and submit it for review.
Join a working group and contribute a substantive building-block specification, use case, reference implementation or new proposal.
Ship a genuinely useful Gradle plugin for your developer check such as secret, licence, or configuration auditing; publish with your tool documentation and support URLs.
Build a GRASS GIS add-on for location anonymization, sensitive-zone generalization, or privacy-safe geospatial export, include docs and tests, then submit it to the official add-ons repository.
Deposit your research-level open-source component or related preprint/report with accurate project and source links.
Join an approved organization and publish a documented humanitarian privacy/safety dataset with licence and responsible-access settings.
Apply as the actual designer and publish a manually designed, consistent privacy or accessibility icon pack with an accurate public author profile.
Package a complete computational privacy or accessibility learning module and submit its reusable artifact plus Markdown paper.
Create a focused educational demo for one your tool technique and share the public bin from an authentic profile.
Publish a genuinely useful KDE or Plasma asset or integration with accurate project and homepage details.
Have a qualified founder or senior team member apply as a privacy, accessibility, product, or engineering mentor and add your tool only as truthful experience/personal-site evidence.
Build a safe MISP import, export, hover, expansion, or workflow module for a legitimate privacy or scam-analysis use case, document it, test it, and submit a PR.
Contribute a working collector or alert integration for measurable your tool service/privacy signals with metadata and documentation.
Develop a safe, useful Nmap NSE script related to your security check and include accurate author or homepage metadata.
Use ORCID to publish genuine research stages—problem, method, data or analysis—with contextual your tool code/data links.
Create a maintained Omeka S module for collection metadata privacy, accessibility or link auditing, package it correctly and register the add-on with project and author links.
Create a rigorous structured comparison of published privacy, redaction, or accessibility studies and include your tool only when supported by research.
Open-source your component, then add its website and repositories through the official oss-directory PR.
Build a secure OpenCTI connector that imports or exports your legitimate -supported CTI workflow, add tests and documentation, and contribute it for library integration.
Publish an open-source Lua/OpenResty package that integrates your privacy or security workflow and includes honest package metadata.
Contribute a functional privacy/security integration, dashboard or ingestion-to-visualization content pack through the OpenSearch Catalog workflow.
Create a public reproducibility project for your tool research, datasets, test methods, or privacy benchmarks and link the genuine project/site.
Build a useful ownCloud app that invokes or embeds your privacy, document or URL-audit workflow, code-sign it and publish it through the official marketplace.
Build and test a Particle Device OS privacy, local-processing, or credential-safety library with examples, license, README, and repository URL, then publish it via the CLI.
Develop an OJS/OMP/OPS plugin for a genuine accessibility, privacy or publication-validation workflow, release it with gallery metadata and submit through PKP's review flow.
Build a working mini-project showing your browser-side feature and publish its indexed share page with useful documentation.
Create high-confidence defensive templates for authorized checks of privacy leaks or misconfigurations, include safe matchers and test evidence, then submit them for review.
Create your maintained exporter or native Prometheus metrics integration and submit it to the official exporters list.
Apply as an author and publish original privacy, security or accessibility articles with contextual your tool references.
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.