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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.
Submit one released evaluator such as WCAG Quick Auditor with accurate standards, scope, license, release date, and accessibility-statement details.
Build and verify your Discord app, then enable Discovery in the Developer Portal.
Apply with a signed, downloadable open-source or qualifying freeware build that needs reliable binary hosting, malware scanning, and a public project page.
Create your company profile using your official email.
Suggest your tool and complete its B2B software profile.
Post only a self-contained initial announcement of a substantial open-source defensive tool, a major update, or a properly coordinated OSS vulnerability disclosure.
Contact PeerSpot with your tool enterprise use cases and real-customer evidence to request inclusion.
Submit one mature privacy tool, disclose ownership, publish its exact threat model and limitations, and engage transparently with the community review.
Submit your desktop or mobile app through their developer contact so it gets a download page.
Register as a developer and upload your app or ask the team to list it.
Publish your genuine open dataset, benchmark, software release, poster, or reproducible research artifact and connect its related identifier to your tool.
Create seller profile and list product if eligible.
Offer a standalone, vendor-neutral security tool or documentation project with open governance and a committed leader, then submit the official new-project request.
Contact them to have your Windows or Mac software added to the catalogue.
Send your Windows or Mac software for review via their submission or contact page.
Release your genuinely free-software desktop or self-hosted component with free documentation and transparent downloads, then submit a custom directory entry.
Deposit your research-level open-source component or related preprint/report with accurate project and source links.
Archive your authentic release, manual or research artifact with accurate metadata and official source URL.
Add your Mac app and keep version updates current so users get notified.
Submit your Windows utility with a PAD file or download link for editorial review.
Submit only your substantive free-software component that runs primarily on free systems and needs authentic Savannah project hosting and collaboration.
Ask the TechSpot team to add your app to the downloads section, with version notes.
Build your Trello Power-Up, register it, sign the developer agreement, and submit it.
Publish your genuine benchmark, dataset, software artifact, poster, or methods report with the canonical project URL in metadata.
Create company/software listing.
Create vendor profile and collect authentic reviews.
Open-source a relevant geoscience model or component, complete the model questionnaire, and provide its code archive for CSDMS testing.
Send release notes for notable versions of your desktop software to their software news section.
If your tool produces a research-grade R package, submit a presubmission inquiry and the package for open review.
Build a real ROS package for your robotics/privacy/safety workflow, release it through rosdistro and expose maintained README, documentation and source links in ROS Index.
Pitch/list company/tool if category fits.
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.