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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 design or architecture project through their DIY submission tool with images and text.
Register as a member and publish blog posts on fintech, payments or banking technology.
Document a project that uses notable typography and credit your site or studio.
Create an account and publish a member blog on game development, tools or postmortems.
Add your Hugo theme following the theme repository submission steps.
Add your indie game, post updates and link your studio site.
Send creative work for possible editorial coverage.
Add your static site generator or headless CMS through a pull request to their GitHub repo.
Join the partner program to syndicate your existing Java or software development posts, or submit original articles.
Submit your tool for startup feature/review.
Publish your MCP server or agent to their marketplace with docs and a repository link.
Create a community account and submit an article or short insight on software testing for review.
Send release notes for notable versions of your desktop software to their software news section.
Open a pull request to the Nuxt modules repository to list your module.
Send funding, launch or milestone news if you are a European startup.
Claim your vendor profile and invite verified users to review your software.
Submit a finished creative project with images and credits.
Service businesses can create a profile, which is shared with Clutch, and collect verified reviews.
Creative and design agencies can create a profile and add portfolio items.
Host a podcast on the free tier and link to your site from the show page and episode notes.
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.
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.
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.
Publish an interactive chart or story from your own data and credit your site in the source note.
Run your genuine privacy/security publication and add contextual links in original posts and About pages.
Create a chart or infographic from your data and share it publicly with a source link to your site.
Use the free plan to publish a public newsletter archive or landing page that links to your site.
Publish your OpenAPI reference docs with Redocly and link back to your product and signup.
Host your podcast and add your website to show notes and the podcast profile page.
Submit your startup story with founding background, product and traction details.
Design your API and publish public docs with a link to your product.
Publish your OpenAPI definition publicly on SwaggerHub with a link to your product docs.
Email funding or acquisition news with key facts and a press kit.
Create a company profile and gather verified client reviews for your dev or IT services.
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.