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 filters2
Highest impactimpact 100
- 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 - 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 - 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
High impactimpact 86
- SubmitAPIList.fun (opens in a new tab)
APIList.fun
apilist.funRecommend your official API with its documentation URL, concise Markdown description, category, and technical details.
Estimated domain authority DA ~45FreeQuickLive, conditionalAPI Directory - SubmitAPIs.guru OpenAPI Directory (opens in a new tab)
APIs.guru OpenAPI Directory
apis.guruWhen your tool exposes a stable public API, host an official OpenAPI definition at a permanent URL and submit it with accurate ownership, category, logo, and metadata.
Estimated domain authority DA ~50FreeQuickLive, conditionalAPI Directory - SubmitAppDirectory.org (opens in a new tab)
AppDirectory.org
appdirectory.orgSubmit your tool once with its strongest free-use case, correct category, concise copy, and product URL.
FreeQuickLive, conditionalFree web-app directory - SubmitAwesome-Selfhosted (opens in a new tab)
Awesome-Selfhosted
awesome-selfhosted.netSubmit your mature self-hosted edition using the required YAML entry and canonical website/source links.
Estimated domain authority DA ~40FreeQuickLive, conditionalOpen-Source Directory - SubmitGeM (opens in a new tab)
GeM
gem.gov.inRegister an authorized Indian business seller and list only real eligible your tool services with accurate catalogue details.
Estimated domain authority DA ~70FreeQuickLive, conditionalGovernment Marketplace - SubmitGoodpods (opens in a new tab)
Goodpods
goodpods.comSearch for and claim your real podcast, then keep its RSS-supplied website and episode metadata accurate.
Estimated domain authority DA ~60NofollowFreeQuickLive, conditionalPodcast Directory - SubmitListen Notes (opens in a new tab)
Listen Notes
listennotes.comSubmit your real podcast RSS feed whose show website and episode notes naturally reference relevant tools.
Estimated domain authority DA ~80DofollowFreeQuickLive, conditionalPodcast Directory - SubmitOpen VSX Registry (opens in a new tab)
Open VSX Registry
open-vsx.orgPublish your useful editor extension whose marketplace metadata links to its homepage and documentation.
Estimated domain authority DA ~65FreeQuickLive, conditionalExtension Registry - SubmitOpenSourceAlternative.to (opens in a new tab)
OpenSourceAlternative.to
opensourcealternative.toSubmit a genuinely open-source, maintained and self-hostable your tool component as an alternative to a named proprietary tool.
Estimated domain authority DA ~35FreeQuickLive, conditionalOpen-Source Directory - SubmitPipedream Registry (opens in a new tab)
Pipedream Registry
pipedream.comBuild your tool triggers/actions, submit them to the public registry by GitHub PR, and address review feedback.
Estimated domain authority DA ~70FreeQuickLive, conditionalAutomation Component Marketplace - SubmitPlayer FM (opens in a new tab)
Player FM
player.fmSubmit your genuine podcast RSS feed or Apple Podcasts URL with accurate show-website and episode metadata.
Estimated domain authority DA ~80NofollowFreeQuickLive, conditionalPodcast Directory - SubmitPocket Casts (opens in a new tab)
Pocket Casts
pocketcasts.comSubmit your real public podcast RSS feed whose metadata and episode notes reference the official site naturally.
Estimated domain authority DA ~70FreeQuickLive, conditionalPodcast Directory - SubmitPRISM Break (opens in a new tab)
PRISM Break
prism-break.orgPropose your qualifying open-source privacy project through the official contribution process.
Estimated domain authority DA ~60DofollowFreeQuickLive, conditionalPrivacy Software Directory - SubmitPulseMCP (opens in a new tab)
PulseMCP
pulsemcp.comSubmit your tool MCP repository or public server URL, preferably after publishing it to the official MCP Registry.
Estimated domain authority DA ~45FreeQuickLive, conditionalMCP Directory - SubmitPWA Directory (opens in a new tab)
PWA Directory
pwa.directoryFirst pass PWA checks, then submit the installable HTTPS app with manifest, service worker, offline behavior, icons, and screenshots.
Estimated domain authority DA ~35FreeQuickLive, conditionalPWA directory - SubmitSessionize (opens in a new tab)
Sessionize
sessionize.comCreate a founder expert profile and submit substantive talks about privacy-first tools, accessibility or web security.
Estimated domain authority DA ~70FreeQuickLive, conditionalSpeaker Directory - SubmitTerraform Registry (opens in a new tab)
Terraform Registry
registry.terraform.ioPublish a maintained Terraform provider for your tool stable API, or a genuinely reusable deployment module, with signed releases, generated documentation, examples, tests, and semantic versions.
Estimated domain authority DA ~80FreeQuickLive, conditionalInfrastructure Ecosystem
Usefulimpact 68
- SubmitApify Store (opens in a new tab)
Apify Store
apify.comBuild your working automation Actor, publish it to the Store and include contextual project/documentation links.
Estimated domain authority DA ~70NofollowFreeQuickLive, conditionalDeveloper Marketplace - SubmitAppImageHub (opens in a new tab)
AppImageHub
appimage.github.ioPackage your legitimate desktop app as an official AppImage, then file the requested issue or pull request for inclusion.
Estimated domain authority DA ~50FreeQuickLive, conditionalLinux App Directory - SubmitAstro Showcase (opens in a new tab)
Astro Showcase
astro.buildIf your property genuinely uses Astro, use the Submit site action to propose it for the public showcase.
Estimated domain authority DA ~70FreeQuickLive, conditionalFramework Showcase - SubmitCloudsmith (opens in a new tab)
Cloudsmith
cloudsmith.comCreate your public package repository for genuine releases and complete its namespace, description, licence and source/homepage metadata.
Estimated domain authority DA ~60FreeQuickLive, conditionalArtifact Distribution - SubmitCocoaPods (opens in a new tab)
CocoaPods
cocoapods.orgPublish a genuine iOS or macOS your tool SDK and set homepage/source URLs in its podspec.
Estimated domain authority DA ~75FreeQuickLive, conditionalPackage Registry - SubmitDjango Packages (opens in a new tab)
Django Packages
djangopackages.orgAfter releasing a genuinely Django-relevant open-source component, sign in and add its GitHub or GitLab repository and accurate project links.
Estimated domain authority DA ~60FreeQuickLive, conditionalDjango Ecosystem - SubmitFlakeHub (opens in a new tab)
FlakeHub
flakehub.comPublish your genuine versioned Nix flake under the correct GitHub owner and maintain its README and project links.
Estimated domain authority DA ~45FreeQuickLive, conditionalNix Package Registry - Submitfreshcode.club (opens in a new tab)
freshcode.club
freshcode.clubSubmit your real maintained open-source release with accurate categories and project metadata.
Estimated domain authority DA ~40FreeQuickLive, conditionalOpen-Source Release Directory - SubmitHaxelib (opens in a new tab)
Haxelib
lib.haxe.orgRelease a useful Haxe SDK or privacy utility and set haxelib.json's URL to your relevant documentation page.
Estimated domain authority DA ~55FreeQuickLive, conditionalLanguage Package Registry - Submititch.io (opens in a new tab)
itch.io
itch.ioPublish a genuine browser or desktop your tool utility with screenshots, documentation and an official-site link.
Estimated domain authority DA ~90NofollowFreeQuickLive, conditionalApp Distribution - SubmitJoomla Extensions Directory (opens in a new tab)
Joomla Extensions Directory
joomla.orgBuild your functional Joomla integration and submit a complete listing with an approved download route.
Estimated domain authority DA ~90Sometimes dofollowFreeQuickLive, conditionalCMS Extension - SubmitLiberapay (opens in a new tab)
Liberapay
liberapay.comCreate your project team, connect verified project accounts, and describe the official website and repository contextually.
Estimated domain authority DA ~65NofollowFreeQuickLive, conditionalOpen-Source Funding & Profile - SubmitOpenTofu Public Registry (opens in a new tab)
OpenTofu Public Registry
registry.opentofu.orgRelease your reusable -related security or privacy module from a correctly named public GitHub repository.
Estimated domain authority DA ~50FreeQuickLive, conditionalInfrastructure Registry - SubmitPitchBook (opens in a new tab)
PitchBook
pitchbook.comSearch for your tool; submit an accurate profile update or request research coverage with authoritative company data and website.
Estimated domain authority DA ~85FreeQuickLive, conditionalPrivate-Market Database - SubmitPublicAPIs.io (opens in a new tab)
PublicAPIs.io
publicapis.ioList your legitimate documented API in the relevant developer category using the normal or Pro review queue.
Estimated domain authority DA ~40FreeQuickLive, conditionalAPI Directory - SubmitRaycast Store (opens in a new tab)
Raycast Store
raycast.comBuild your tool actions as a Raycast extension and publish through the official GitHub PR workflow.
Estimated domain authority DA ~70FreeQuickLive, conditionalDeveloper Extension Store - SubmitRepoz (opens in a new tab)
Repoz
repoz.ioSubmit your maintained open-source component for community review.
FreeQuickLive, conditionalOpen-Source Directory - SubmitResearchGate (opens in a new tab)
ResearchGate
researchgate.netAn eligible active researcher can publish genuine your tool studies, code or datasets and add the official website where appropriate.
Estimated domain authority DA ~95NofollowFreeQuickLive, conditionalResearch Network - SubmitScoop (opens in a new tab)
Scoop
scoop.shPublish and maintain a tested Scoop manifest for your actual portable Windows CLI or app.
Estimated domain authority DA ~55FreeQuickLive, conditionalWindows Package Ecosystem
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.