Free backlink sites list: 1,964 places to get a link
A maintained list of 1,964 legitimate backlink sites: directories, profile creation sites, guest posting sites, launch platforms, registries and marketplaces. 1,628 are free or have a free tier, 44 usually give a dofollow link, and 781 have an estimated DA of 70 or more. Every row shows authority, link type, cost and effort, and links straight to the submit page.
- 1,964
- Opportunities
- 1,628
- Free or freemium
- 781
- Est. DA 70+
- 208
- Quick wins
All filters3
Highest impactimpact 100
- SubmitACT Rules Community (opens in a new tab)
ACT Rules Community
act-rules.github.ioImplement applicable ACT Rules, execute official test cases, publish the implementation report, join ACT-R CG, and propose your tool as an implementation.
Estimated domain authority DA ~45DofollowFreeQuickVerified liveAccessibility - SubmitAlternativeTo (opens in a new tab)
AlternativeTo
alternativeto.netCreate account, wait cooldown if new, submit your tool as platform alternative.
Estimated domain authority DA ~80NofollowFreeQuickNot submittedStartup directory - SubmitCB Insights (opens in a new tab)
CB Insights
cbinsights.comRequest an Analyst Briefing and complete the company survey with product, customer, growth, funding, and market evidence.
Estimated domain authority DA ~90NofollowFreeQuickNot submittedTechnology market-intelligence database - SubmitContent Authenticity Initiative (opens in a new tab)
Content Authenticity Initiative
contentauthenticity.orgApply as a company and accurately describe your tool C2PA or content-provenance tools and intended participation.
Estimated domain authority DA ~60FreeQuickVerified liveContent Authenticity - SubmitCSA STAR Registry (opens in a new tab)
CSA STAR Registry
cloudsecurityalliance.orgComplete the current CAIQ or AI-CAIQ truthfully and submit your tool real cloud service to the STAR Registry.
Estimated domain authority DA ~80Sometimes dofollowFreeQuickLive, conditionalCloud Security - SubmitCycloneDX Tool Center (opens in a new tab)
CycloneDX Tool Center
cyclonedx.orgAdd standards-valid CycloneDX support, then submit your structured entry through the official contribution workflow.
Estimated domain authority DA ~55FreeQuickVerified liveSBOM Ecosystem - SubmitFreeNoSignup (opens in a new tab)
FreeNoSignup
freenosignup.comSubmit one or more free your tool utilities that work without registration.
FreeQuickVerified liveNo-Signup Tool Directory - SubmitGlama MCP Directory (opens in a new tab)
Glama MCP Directory
glama.aiDeploy your maintained MCP server from GitHub, Docker, npm, or PyPI, verify maintainer ownership, and switch it public only after production testing.
Estimated domain authority DA ~50FreeQuickNot submittedMCP Ecosystem - SubmitMERLOT (opens in a new tab)
MERLOT
merlot.orgPublish a genuinely reusable privacy or accessibility lesson on your tool, give it a stable URL and open license, then add its educational metadata to MERLOT.
Estimated domain authority DA ~70FreeQuickVerified liveOpen Education - SubmitOpenSSF Best Practices Badge (opens in a new tab)
OpenSSF Best Practices Badge
bestpractices.devOpen-source your well-scoped component, document its governance, tests, security process, and complete the passing-badge self-assessment.
Estimated domain authority DA ~60FreeQuickLive, conditionalOpen-Source Security - SubmitPostman (opens in a new tab)
Postman
postman.comCreate your public workspace with sanitized API collections, examples, documentation, and a canonical homepage link on the publisher profile.
Estimated domain authority DA ~90NofollowFreeQuickLive, conditionalAPI Collaboration Network - SubmitProduct Hunt (opens in a new tab)
Product Hunt
producthunt.comLaunch your platform first; prepare maker comment and assets.
Estimated domain authority DA ~90NofollowFreeQuickNot submittedLaunch platform - SubmitRapidAPI Hub (opens in a new tab)
RapidAPI Hub
rapidapi.comList your stable API with OpenAPI definitions, clear endpoints, health checks and its official website in the permitted listing field.
Estimated domain authority DA ~80FreeQuickVerified liveAPI marketplace - SubmitSaaSHub (opens in a new tab)
SaaSHub
saashub.comSubmit platform, add competitor alternatives, verify domain email.
Estimated domain authority DA ~70DofollowFreeQuickNot submittedStartup directory - SubmitSAYUJ by STPI (opens in a new tab)
SAYUJ by STPI
sayuj.netRegister your tool as an Indian startup, complete its offering profile, and use Product Expo or Startup Connect when relevant.
FreeQuickVerified liveGovernment Startup Network - SubmitSmithery MCP Registry (opens in a new tab)
Smithery MCP Registry
smithery.aiPublish a genuine hosted, external, or stdio MCP server exposing a small set of consent-based your tool utilities with complete metadata and documentation.
Estimated domain authority DA ~50FreeQuickNot submittedMCP Ecosystem - SubmitStartupTN (opens in a new tab)
StartupTN
startuptn.inUse the official Register flow and build your verified company profile if Tamil Nadu startup rules are met.
Estimated domain authority DA ~35FreeQuickLive, conditionalState Startup Registry - SubmitTracxn (opens in a new tab)
Tracxn
tracxn.comSubmit the company website and concise product, market, founder, funding, and traction details for analyst review.
Estimated domain authority DA ~75NofollowFreeQuickNot submittedStartup intelligence database
How to build backlinks with this list
Four steps that work for a new site, a SaaS or a side project. No paid link packages, nothing that risks a penalty.
Get the basics right first
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.
Claim profiles and free listings
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.
Go after a few strong links
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.
Track and keep it clean
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
A link opportunity is not a link.
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.
Backlink sites by category
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.