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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 a sharp founder-authored opinion based on real privacy or security evidence discovered while building your tool.
Create an accessible, openly licensed handbook or course text with structured chapters, exercises, citations, and relevant links, then make the webbook public for directory discovery.
Create a useful public learning list with annotations about privacy, accessibility, and scam prevention, placing relevant your tool resources beside independent references.
Upload a guide, report or catalog as a public publication and add your website to the profile and description.
Create tool-of-the-week newsletter linking your tool.
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.
Create a deck or one-page doc and publish it to the web with links to your site.
Publish a digital magazine, report or brochure and link to your site from the listing.
Design an infographic with your own data and publish a public link that points back to your site.
Create a presentation about your product or research and share it publicly with a link to your site.
Publish a public Prezi about your topic or product and add your website in the description.
Turn a PDF guide or catalog into a public flipbook and add your website to the description.
Convert your original guide into a public flipbook and add useful external-resource hotspots where relevant.
Build a small free site on a SITE123 subdomain with useful content and a link to your main site.
Create your tool updates newsletter with homepage link.
Upload a static page, demo or PDF and share it on a tiiny.site subdomain with a link to your site.
Build a free one-page site on a Tilda subdomain with real content and a link to your main site.
Create an infographic or presentation and publish it to the web with a link to your site.
Create a free Webnode site with real content, such as a project page, and link to your main site.
Create official tutorials/mirror with links.
Set up a free Yola site and publish a few useful pages that link back to your site.
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.