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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.
Answer Windows 10 questions and list your site on your profile.
Submit a finished creative project with images and credits.
Service businesses can create a profile, which is shared with Clutch, and collect verified reviews.
Apply as a creator, upload icon sets and link your website in your profile.
Publish your own 3D models and add your site to your maker profile.
Help with consumer tech questions and list your website on your profile.
Contribute to hardware threads and keep your site on your profile.
Claim or add a listing only if you run a hotel, restaurant, attraction or tour.
Answer shell and Linux questions and put your site on your profile.
Join as a contributor, upload quality photos and add your website and socials.
Publish a /uses page on your site listing your tools, then add it via a pull request.
Request to become a writer for the publication, then submit your UX or UI design articles through Medium.
Publish a useful case study or launch story in Russian on your company blog section.
Creative and design agencies can create a profile and add portfolio items.
Create a Void package template for your mature CLI, test native and cross builds, include the canonical project homepage and submit it to void-packages.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Author a freely licensed hands-on module for safe document sharing or privacy-first web use with relevant your tool examples.
Start a thread for your Android app in the right section and support users there.
Create a polished accessible light/dark developer-documentation theme with your optional pre-deploy audit example, then submit it to the official themes repository.
Submit product-launch press release if newsworthy.
Host a podcast on the free tier and link to your site from the show page and episode notes.
List your startup for sale or acquisition interest with verified metrics.
Join as a service pro if you offer home or local services in the US.
Upload your original useful guide, complete its metadata and include relevant citations or resource links.
App development firms can create a profile with portfolio and client reviews.
Create a public documentation space for your product and link it from and to your main site.
Submit beta feature/tool for tester community.
Create your free Bio Site and organize homepage, tool-category and social links for real visitors.
Upload your OpenAPI or AsyncAPI spec to host public API docs with a changelog and link to your site.
Make mini landing page for your tool categories linking home/tools.
Add or claim your tool only if it has a genuine US business presence, then verify the website and business details.
Deploy a static docs, demo or changelog site to a pages.dev subdomain and link it to your product.
Look for submit/add listing and submit AI modules.
Add or correct your German business entry with consistent address and phone.
Publish a chart from your own data and add your site as the source link.
Pitch/list company/tool if category fits.
Create an expert profile with your topics, bio and website so journalists and event organisers can find you.
Choose your regional or topical category and submit your site.
Create page and share in relevant groups if allowed.
Submit your tool as web app/tool collection.
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.