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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.
If your site's uncompressed size is under 512 KB, submit it via the GitHub repo.
Submit business/site listing if form active.
Create company listing with website link.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Add your personal site by opening a pull request on the project's GitHub repo.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Claim or add a listing only if you run a hotel, restaurant, attraction or tour.
Publish a /uses page on your site listing your tools, then add it via a pull request.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Join as a service pro if you offer home or local services in the US.
Add or claim your tool only if it has a genuine US business presence, then verify the website and business details.
Add or correct your German business entry with consistent address and phone.
Choose your regional or topical category and submit your site.
Create page and share in relevant groups if allowed.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Register a free basic entry for your German business, ideally with a German-language description.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Create a pro profile with project photos and your website, if you work in home or design services.
Sign up as a seller, add your company profile and list your products or services.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Manufacturers can create a supplier showroom with company details and products.
Create a free page only for your genuine local office or service area and add accurate story, categories, website, and contact data.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Claim your French business listing through their pro section and add your site.
Register your Spanish business for a free basic listing.
Add or update your Italian business entry with a website link.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Register your North American manufacturing or industrial company for a free supplier profile.
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.