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.
The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.
| # | Impact (sorted) | Site — sort by this | Est. DA — sort by this | Link | Domain | Type | Cost | Effort — sort by this | Priority | Status | What to prepare | Rules / caveat | Checked | Actions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 100 | CSA STAR Registry | 80 | Sometimes dofollow | cloudsecurityalliance.org | Developer registries | Free | Quick | Do first | Live, conditional | Complete the current CAIQ or AI-CAIQ truthfully and submit your tool real cloud service to the STAR Registry. | Cloud/SaaS fit only; disclose actual controls and update annually. Never overstate security practices. | 2026-08-04 | Open CSA STAR Registry submit page (new tab)CSA STAR Registry details |
| 2 | 86 | Kompass | 75 | Sometimes dofollow | kompass.com | Business directories | Free | Quick | High | Not submitted | Register the legal company and complete a global B2B profile with accurate IT services, contact data, and your tool website. | Provide verifiable company details and choose the correct Kompass classifications; enhanced promotion is paid. | 2026-08-03 | Open Kompass submit page (new tab)Kompass details |
| 3 | 68 | API Tracker | 45 | Sometimes dofollow | apitracker.io | Developer registries | Free | Quick | Medium | Needs checking | Submit your public API with docs link, SDKs and authentication details. | Only products with public APIs fit. | Added 2026-11-01 | Open API Tracker submit page (new tab)API Tracker details |
| 4 | 68 | Best of JS | 55 | Sometimes dofollow | bestofjs.org | Developer registries | Free | Quick | Medium | Needs checking | Suggest your JavaScript or TypeScript project through their GitHub issue process. | Projects need some traction and must be JS ecosystem tools. | Added 2026-11-01 | Open Best of JS submit page (new tab)Best of JS details |
| 5 | 68 | Cursor Directory | 45 | Sometimes dofollow | cursor.directory | AI tool directories | Free | Quick | Medium | Needs checking | Share Cursor rules or list your MCP server, linking back to your project. | Content should be useful to developers, not ads. | Added 2026-11-01 | Open Cursor Directory submit page (new tab)Cursor Directory details |
| 6 | 68 | Dark Mode Design | 50 | Sometimes dofollow | darkmodedesign.com | Design galleries | Free | Quick | Medium | Needs checking | Submit your site if it has a polished dark design. | Curated; only well-designed dark sites are featured. | Added 2026-11-01 | Open Dark Mode Design submit page (new tab)Dark Mode Design details |
| 7 | 68 | europages | 70 | Sometimes dofollow | europages.com | Business directories | Free | Quick | Medium | Needs checking | List the registered your tool business as an eligible IT supplier and complete its public company profile and website field. | A valid company and VAT number are required; use only if the business qualifies as a B2B supplier and all legal data is accurate. | 2026-08-03 | Open europages submit page (new tab)europages details |
| 8 | 68 | Joomla Extensions Directory | 90 | Sometimes dofollow | joomla.org | Marketplaces and app stores | Free | Quick | Medium | Live, conditional | Build a functional your tool Joomla integration and submit a complete listing with an approved download route. | Actual installable extension required; GPL, trademark, update-system, security and listing checks apply. | 2026-08-05 official JED submission guide and entry checklist | Open Joomla Extensions Directory submit page (new tab)Joomla Extensions Directory details |
| 9 | 68 | MCP Market | 40 | Sometimes dofollow | mcpmarket.com | AI tool directories | Free | Quick | Medium | Needs checking | Submit your MCP server with its repository, install steps and description. | Only real, working MCP servers are listed. | Added 2026-11-01 | Open MCP Market submit page (new tab)MCP Market details |
| 10 | 68 | Owwly | 45 | Sometimes dofollow | owwly.com | Launch platforms | Free | Quick | Medium | Needs checking | Create a product page with visuals and a clear tagline, then share it so people upvote. | One page per product; no fake votes. | Added 2026-11-01 | Open Owwly submit page (new tab)Owwly details |
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.