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.
Register your genuine open-source component, complete its project summary and link its official homepage and source repository.
Publish your open Privacy Framework mapping, template, tutorial, or implementation tool and submit it for repository review.
Publish your well-documented public API workspace with runnable collections, examples and the canonical API website.
Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.
Create your real Airflow provider with hooks/operators and documentation metadata, publish it, then add it to Airflow’s Ecosystem page by PR.
Build an original interactive demo of your utility, document the use case in Pen Details, and add your tool as one of the public profile links.
Publish a functional Eclipse plugin for your developer use case, then create a complete marketplace listing with official support and source links.
Publish an original dashboard using public your tool benchmark or ecosystem data and add an appropriate project permalink in workbook details.
Register your concrete ongoing initiative with measurable milestones, dates, resources, SDG targets, partners and website evidence.
Build a production Webex integration or bot for deliberate sharing of your tool checklists or sanitized files, then submit its branded App Hub profile.
Build a tool that genuinely interacts with Wikimedia, publish accurate toolinfo.json metadata, and register it through Toolhub UI, crawler, or API.
Build an OAuth Asana component that launches your audit or attaches a generated report, then submit complete company and support details.
Claim and verify your tool’s legitimate business entity or location and keep name, address, phone, and website consistent.
Build a Canva app that sends chosen design assets to your accessibility, metadata, or privacy check and returns useful results inside Canva.
Submit a useful R package with URL and BugReports metadata pointing to its official project and documentation pages.
Create a functional Drupal integration or reusable module and publish a maintained project page with documentation and official links.
Create a comprehensive tutorial around a reusable privacy, file-processing, accessibility, or security technique, with your tool only as a natural example.
Tag and publish a public Go module with module docs and repository metadata so pkg.go.dev indexes it.
Build an Intercom app for intentional conversation privacy scanning or sanitized export generation and include your clear install or learn-more URL.
Build and host a useful Jotform widget, register it with full documentation and send it for approval.
Publish an original, human-verified privacy or accessibility benchmark with complete methodology, provenance, schema, license, and a relevant project citation.
Build and test a Netlify extension, publish it publicly, then submit it for review and directory listing.
Publish a free mini-course on privacy, redaction, scam detection, or accessibility with genuine your tool exercises in the curriculum.
Build a polished Unity editor utility or SDK for your relevant service and submit it with demos, documentation and support details.
Build a minimal-scope Zoom app that sends selected meeting content to your explicit privacy or redaction workflow and links its support, privacy, and documentation pages.
Propose a lived-experience frontend article on accessible tool interfaces, privacy-safe browser APIs, CSS, or performance.
Pitch a practical, outcome-based tutorial on client-side privacy, accessible UI, or web safety using original examples and an honest author identity.
Write an original technical article about a broadly useful browser-security, privacy, or accessibility technique and cite your tool only when it is a necessary working example.
Publish a detailed build or usage tutorial around your original workflow, with the relevant tool link only where it helps readers.
Pitch a practical privacy-by-design, accessibility, frontend-security, or local-first tooling article backed by real your tool lessons.
Pitch a rigorous developer-facing article about secure file handling, browser privacy, accessibility testing, or tool architecture.
Pitch original your tool data, an AI/privacy industry argument, or a consequential product launch to the relevant desk.
Create your truthful /founder profile or content page and add the website link where allowed.
Publish an original educational 3D asset connected to your real tutorial, with accurate credits and a contextual project link in the description.
Upload your original research-backed guide and reference relevant tools naturally in the document.
Submit a validated manifest for an installable Windows release with PackageUrl, PublisherUrl and support metadata.
Publish a mature open-source interoperability or public-administration solution with documentation, releases, licence, and owner metadata.
Build a production-grade Camel component for your tool APIs and propose it upstream with generated component docs and tests.
Open-source a relevant geoscience model or component, complete the model questionnaire, and provide its code archive for CSDMS testing.
Create a policy-compliant Debian package for your stable useful CLI, file the appropriate intent-to-package request, include accurate upstream metadata and secure a Debian sponsor for upload.
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.