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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.
Run a clearly disclosed campaign for your tool’s developer and security tools across relevant Changelog podcasts or newsletters.
Use a real writer or designer identity, add authored your tool work as a properly credited clip or case study, and include the personal website link in the profile.
Publish a reusable Defold privacy-safe logging, security, or build-audit tool.
After your tool has a genuinely open-source, well-documented public-interest component, complete the eligibility assessment and nominate that specific component.
Build a genuine FIWARE-powered privacy, consent, data-space, or civic-safety solution, document its architecture and data models, then submit it for expert validation.
Create a GDevelop extension for safe local storage, consent UX, or secret-free analytics configuration.
Build your public OAuth integration, gain qualifying installs, then submit setup docs plus support, privacy, and terms URLs.
Open-source your reusable research-focused component, archive it with a persistent identifier, and submit a software metapaper with project/code links.
Obtain senior approval, submit the signed endorsement materials, implement the Principles and share a real case study.
Build a genuine Salesforce package or API solution for selected-record privacy or document checks and complete its company and listing profile.
Submit a mature macOS, iOS, or web companion app that provides your privacy workflow and links to its official product documentation.
Build a Shopware admin extension for privacy and accessibility checks on selected catalog content, media, and exports.
Build a SketchUp extension for model metadata sanitization or accessibility-ready export checks.
Build a Stripe app that sends selected non-sensitive invoice or export data to your clearly scoped audit and publish complete documentation.
Place your targeted campaign in TLDR Dev, InfoSec, AI, Tech, Product, or Founders with a focused landing page.
Build your VTEX IO storefront or admin privacy utility, define billing, and submit it for homologation.
Publish a secure one-click self-hosted your tool image or cloud-init deployment with documentation and support.
Distribute your substantial launch or privacy/security research story with media, founder quote, and one canonical URL.
Reserve for major corporate news, partnerships, funding, or independently useful your tool research.
Build a tightly relevant press list and pitch your original report, launch, or expert source contribution.
Use its PR Newswire-backed packages only for your strong national-interest story with clear evidence.
Use for a major release or original your tool trend report that merits broad international distribution.
Develop an open statistical/privacy-analysis component, then submit a reproducible English LaTeX software paper linking its code and your tool project page.
Identify reporters actively covering privacy, security, developer tools, and consumer utilities; send individualized evidence-led pitches.
Use a focused product or research announcement and target the most relevant technology or cybersecurity distribution.
Use its distribution-only option for ready copy or writing package for your strong UK-facing announcement.
Submit your newsworthy release and target its newspaper, radio, television, and online media network.
Pitch a high-signal announcement to relevant technology, AI, privacy, or India media lists through its distribution network.
Build a genuine RO-Crate validator or privacy linter and submit a technical developer article using the official blog template.
Research AI-cited journalists, build a narrow list, and pitch your tool research or expert commentary rather than generic product copy.
Submit a deep technical tutorial showing a generalizable web, security, or privacy technique used while building your tool.
Submit a polished technology or company announcement and select only the relevant distribution circuit.
Create your profile and add genuinely useful homepage, privacy-tool and accessibility-tool links.
Build table functions that import, normalize and query your tool report JSON or NDJSON with typed findings, then submit the extension descriptor for central build and distribution.
Apply only after your tool becomes a legally registered nonprofit with software central to scalable public impact.
Prepare and test a policy-compliant ebuild for your stable CLI, including accurate HOMEPAGE and source metadata, then work with a Gentoo developer or proxy maintainer for repository inclusion.
Port your functional desktop or CLI utility to Haiku, write and test a compliant recipe, then submit a feature-branch pull request to HaikuPorts.
Submit a licensed computational neuroscience model with code ZIP, publication citation, overview, contributors, and tags.
Build a maintained OctoPrint plugin for your credible -related workflow such as privacy-safe print logs or metadata checks, then register it through the official repository pull request.
Register only after your tool launches a genuine open repository for reusable privacy/security research outputs.
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.