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 100–95
- 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 - Submitcrates.io (opens in a new tab)
crates.io
crates.ioPublish your genuine Rust client, CLI, parser, or privacy library and set homepage, repository, README, license, and documentation metadata.
Estimated domain authority DA ~80NofollowFreeModerateLive, conditionalRust Package Registry - SubmitGoogle Workspace Marketplace (opens in a new tab)
Google Workspace Marketplace
workspace.google.comBuild your add-on for Drive, Docs, Sheets, Gmail, or another Workspace product and publish it.
Estimated domain authority DA ~95NofollowFreeModerateLive, conditionalApp Marketplace - SubmitKerala Startup Mission (opens in a new tab)
Kerala Startup Mission
startupmission.kerala.gov.inApply using valid Startup India/DPIIT credentials and complete your tool startup profile for ecosystem visibility.
Estimated domain authority DA ~55FreeModerateLive, conditionalState Startup Registry - SubmitMaharashtra State Innovation Society (opens in a new tab)
Choose Startup Register and complete your tool verified entity, DPIIT, contact, product and website profile.
Estimated domain authority DA ~30FreeModerateLive, conditionalState Startup Registry - SubmitMCP Registry (opens in a new tab)
MCP Registry
modelcontextprotocol.ioPackage your real MCP server, verify its namespace, create server.json and publish it with mcp-publisher.
Estimated domain authority DA ~70FreeModerateLive, conditionalOfficial Protocol Registry - SubmitMicrosoft Marketplace (opens in a new tab)
Microsoft Marketplace
microsoft.comRegister in Partner Center and publish your SaaS or Microsoft-integrated offer.
Estimated domain authority DA ~100NofollowFreeModerateLive, conditionalCloud App Marketplace - SubmitOpen Source Technology Improvement Fund (opens in a new tab)
Request an audit for your mature open-source security component, providing maintainer contacts, architecture, threat model, scope, tests, and a remediation commitment.
Estimated domain authority DA ~45FreeModerateLive, conditionalOpen-Source Security - SubmitPackagist (opens in a new tab)
Packagist
packagist.orgPublish your real PHP SDK or integration from a public repository and set the canonical homepage in composer.json.
Estimated domain authority DA ~75NofollowFreeModerateLive, conditionalPHP Package Registry - SubmitPyPI (opens in a new tab)
PyPI
pypi.orgPublish your real Python SDK, CLI, or integration package and set Homepage, Documentation, Source, and Issues URLs in package metadata.
Estimated domain authority DA ~90NofollowFreeModerateLive, conditionalPython Package Registry - SubmitRubyGems.org (opens in a new tab)
RubyGems.org
rubygems.orgPublish and maintain your genuine Ruby client, CLI, or integration gem with accurate homepage, source, documentation, and changelog metadata.
Estimated domain authority DA ~80NofollowFreeModerateLive, conditionalRuby Package Registry - SubmitSlack Marketplace (opens in a new tab)
Slack Marketplace
slack.comBuild your production-ready Slack app for safe file/text utilities, then submit it from the app configuration page for Marketplace review.
Estimated domain authority DA ~95FreeModerateLive, conditionalWorkplace App Marketplace - SubmitSpreaker (opens in a new tab)
Spreaker
spreaker.comCreate or import your genuine show, keep it public, set its official Website field and publish useful episodes.
Estimated domain authority DA ~85NofollowFreeModerateLive, conditionalPodcast Hosting - SubmitStartup Odisha (opens in a new tab)
Startup Odisha
startupodisha.gov.inRegister and apply with accurate your tool entity, innovation, workforce and website details if Odisha criteria are met.
Estimated domain authority DA ~40FreeModerateLive, conditionalState Startup Registry - SubmitAtlassian Marketplace (opens in a new tab)
Atlassian Marketplace
atlassian.comBuild your Forge-based integration for Jira or Confluence, create a Marketplace Partner profile, and submit a compliant public listing.
Estimated domain authority DA ~90NofollowFree + paid tierQuickLive, conditionalEnterprise App Marketplace - SubmitRapidAPI (opens in a new tab)
RapidAPI
rapidapi.comPublish a real, documented your tool API, complete its Hub listing with accurate website and terms URLs, and optionally offer a free usage tier.
Estimated domain authority DA ~80Free + paid tierQuickLive, conditionalAPI Marketplace - SubmitFeaturedCustomers (opens in a new tab)
FeaturedCustomers
featuredcustomers.comAdd the company, verify ownership, and supply genuine customer references, case studies, and brand assets.
Estimated domain authority DA ~60Sometimes dofollowFree + paid tierModerateLive, conditionalB2B customer-reference directory - SubmitPodbean (opens in a new tab)
Podbean
podbean.comPublish your real episode and add contextual links to resources actually discussed in its show notes.
Estimated domain authority DA ~85NofollowFree + paid tierModerateLive, conditionalPodcast Hosting - SubmitShopify App Store (opens in a new tab)
Shopify App Store
shopify.comBuild your real Shopify-facing utility, complete its public listing, test it on a development store, and submit it for App Store review.
Estimated domain authority DA ~95Free + paid tierModerateLive, conditionalCommerce App Marketplace
High impactimpact 86–84
- 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 - SubmitAdobe Express Add-ons Marketplace (opens in a new tab)
Adobe Express Add-ons Marketplace
adobe.comBuild your redaction, accessibility, image, or privacy add-on and submit its public listing.
Estimated domain authority DA ~95NofollowFreeModerateLive, conditionalDesign Add-on Marketplace
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.