Loading page
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 your free Windows program through the author submission form.
Submit your macOS menu bar app with a short description and screenshot.
Suggest your app if it runs without installation and is free.
Add or claim your program and keep version info and description up to date.
Submit your -related astronomy utility only after it has been used in research submitted to or published by a refereed journal.
Create your truthful /founder profile or content page and add the website link where allowed.
Open-source a relevant geoscience model or component, complete the model questionnaire, and provide its code archive for CSDMS testing.
Submit your SaaS product for a profile with pricing and feature data.
Submit your Windows app for review and malware testing.
Send release notes for notable versions of your desktop software to their software news section.
Create your truthful /founder profile or content page and add the website link where allowed.
Organize a rigorous life-science privacy-tool benchmark or participate with your eligible method and publish validated results.
Submit a mature scientific Python package related to your privacy or accessibility workflow for public review and listing.
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.
Request a vendor listing for your business software and supply feature details.
Create company profile if your tool/Anslation has service angle.
Create company listing and product profile.
Claim/request listing if eligible.
Pitch your tool for software review/listing.
Pitch/list company/tool if category fits.
Submit your tool as web app/tool collection.
Submit your qualifying open research-software component and short software paper after it has mature public development history.
Register an actual neuroimaging privacy, quality-control, or data-processing tool through NITRC's resource workflow.
Package your open-source tool in their portable format and propose it in the development forum.
Submit your tool as remote/productivity tool if form active.
Submit your tool/SaaS-style landing page.
Claim or request a product listing in the right software category.
Register as a vendor to list your software for Indian business buyers.
Submit or request app review/listing.
Submit/request inclusion if UI is strong.
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.