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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.
Free, one short form, strongest sites first. No paid tier needed.
google.com
github.com
toolhub.wikimedia.org
wordpress.org
flickr.com
patreon.com
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.
Create a free company entry with services, hours and website link.
Upload your own photos and add your website to your profile.
Claim or create an agency profile with services, case studies and website.
Submit AI feature pages.
Use Submit Tool flow for AI tools.
Submit your AI tool through their submission page in English or French.
Create your business profile only if it genuinely operates in the United States or Canada and can be verified there.
Sign up and add your website as the first link on your page.
If you are a licensed attorney, claim your profile and add your firm website.
Create a seller profile describing your service so it appears in Bark's provider pages.
Create tool-of-the-week newsletter linking your tool.
Publish your iOS or Android beta to recruit testers and gather feedback.
Create support profile with your tool link.
Create company profile if your tool/Anslation has service angle.
Write a useful guide in Craft and share it as a public web page with links to your site.
Upload a useful PDF, such as a checklist or guide, and set it to public with your site referenced inside.
Share selected UI shots/tool pages with profile link.
Add your business with consistent NAP details, categories and a website link.
Add your New Zealand business with a short description and website.
Build a Flowpage with your links and a short bio.
List your UK business, add services and invite customers to leave reviews.
Create a deck or one-page doc and publish it to the web with links to your site.
Create a free company profile as an importer, exporter or service provider.
Add your Irish business with category, contact info and website.
Offer free your tool cheatsheet/template linking site.
Create a freelancer profile with portfolio samples.
Make a profile on the HTB platform and add your website.
Tool demos/reels with bio link.
Publish a digital magazine, report or brochure and link to your site from the listing.
Create a creator page with your site link and featured content.
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.