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 98–95
- 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 - 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 88–84
- SubmitFOSS United Grants (opens in a new tab)
FOSS United Grants
fossunited.orgPropose a genuinely open-source, privacy-preserving your tool component with a public roadmap, Indian community benefit, budget, milestones, and maintenance plan.
Estimated domain authority DA ~45PaidModerateLive, conditionalOpen-Source Funding - 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 - SubmitAgentic.ai (opens in a new tab)
Agentic.ai
agentic.aiSubmit only your agent that independently decides, acts, and observes.
FreeModerateLive, conditionalAI Agent Directory - SubmitAI ToolNet (opens in a new tab)
AI ToolNet
aitoolnet.comSubmit only your tool features that genuinely use AI, after checking for an existing listing and preparing accurate pricing and use cases.
Estimated domain authority DA ~30FreeModerateLive, conditionalAI tool directory - SubmitAirbyte Connector Marketplace (opens in a new tab)
Airbyte Connector Marketplace
airbyte.comCreate a real source connector that lets consenting users export appropriate your tool data, provide tests and documentation, and contribute it to Airbyte's public connector catalog.
Estimated domain authority DA ~70NofollowFreeModerateLive, conditionalDeveloper Ecosystem - SubmitAmazon Music for Podcasters (opens in a new tab)
Amazon Music for Podcasters
podcasters.amazon.comSubmit and verify one genuine your tool podcast feed for distribution on Amazon Music and Audible.
Estimated domain authority DA ~95NofollowFreeModerateLive, conditionalPodcast Directory - SubmitAPILayer Marketplace (opens in a new tab)
APILayer Marketplace
apilayer.comPublish a stable, documented your tool API and apply as a provider with examples, uptime, support, and honest pricing.
Estimated domain authority DA ~60FreeModerateLive, conditionalAPI Marketplace - SubmitCastbox (opens in a new tab)
Castbox
castbox.fmAdd or claim your real podcast in Creator Studio and complete channel, site and episode metadata.
Estimated domain authority DA ~75NofollowFreeModerateLive, conditionalPodcast Directory - SubmitChocolatey Community Repository (opens in a new tab)
Chocolatey Community Repository
chocolatey.orgShip your real CLI or desktop utility as a tested package with homepage, project and support metadata.
Estimated domain authority DA ~75NofollowFreeModerateLive, conditionalWindows Package Registry - SubmitDatadog Integrations (opens in a new tab)
Datadog Integrations
datadoghq.comApply as a Datadog Technology Partner and build a production-grade integration that sends meaningful your tool telemetry, includes dashboards and documentation, and is useful to shared customers.
Estimated domain authority DA ~85NofollowFreeModerateLive, conditionalObservability Ecosystem - SubmitDiscord App Directory (opens in a new tab)
Discord App Directory
discord.comBuild and verify your Discord app, then enable Discovery in the Developer Portal.
Estimated domain authority DA ~95NofollowFreeModerateLive, conditionalCommunication App Directory - SubmitDocker Hub (opens in a new tab)
Docker Hub
docker.comPublish your maintained CLI or server image with source, documentation, descriptions and canonical homepage links.
Estimated domain authority DA ~90NofollowFreeModerateLive, conditionalContainer Ecosystem - SubmitElastic Integrations (opens in a new tab)
Elastic Integrations
elastic.coBuild an Elastic package that ingests legitimate your tool logs, metrics, or traces and supplies mappings, pipelines, dashboards, documentation, sample data, and automated tests.
Estimated domain authority DA ~85NofollowFreeModerateLive, conditionalObservability Ecosystem - SubmitFirefox Add-ons (opens in a new tab)
Firefox Add-ons
mozilla.orgBuild your useful privacy-preserving extension, submit a signed build, and provide honest homepage, permissions and privacy disclosures.
Estimated domain authority DA ~95NofollowFreeModerateLive, conditionalBrowser Extension - SubmitFOSSHub (opens in a new tab)
FOSSHub
fosshub.comApply with a signed, downloadable open-source or qualifying freeware build that needs reliable binary hosting, malware scanning, and a public project page.
Estimated domain authority DA ~70FreeModerateLive, conditionalOpen-Source Distribution - SubmitGitBook Integration Marketplace (opens in a new tab)
GitBook Integration Marketplace
gitbook.comBuild your real documentation/privacy integration, publish it as public, test it, then submit for GitBook review.
Estimated domain authority DA ~80NofollowFreeModerateLive, conditionalDeveloper Marketplace - SubmitGoogle Open Source Insights (opens in a new tab)
Google Open Source Insights
deps.devPublish your useful package to a supported registry with accurate source and homepage metadata so Open Source Insights can index it.
Estimated domain authority DA ~60FreeModerateLive, conditionalPackage Intelligence - SubmitHome Assistant Integrations (opens in a new tab)
Home Assistant Integrations
home-assistant.ioBuild and maintain a genuinely useful Home Assistant integration for your mature service, including the required Python client library, tests, documentation, and a focused Core pull request.
Estimated domain authority DA ~85FreeModerateLive, conditionalDeveloper Ecosystem - SubmitIFTTT Services (opens in a new tab)
IFTTT Services
ifttt.comJoin the partner platform and create your secure service with genuinely useful triggers, queries, and actions, pass endpoint tests and review, then publish helpful Applets for real user workflows.
Estimated domain authority DA ~90NofollowFreeModerateLive, conditionalAutomation Ecosystem - SubmitKaggle (opens in a new tab)
Kaggle
kaggle.comPublish your clean benchmark or open dataset plus a reproducible notebook, with proper licensing and the canonical project URL in the data card.
Estimated domain authority DA ~90NofollowFreeModerateLive, conditionalData Science Community - SubmitLinuxLinks (opens in a new tab)
LinuxLinks
linuxlinks.comSubmit your maintained desktop or CLI utility only after it runs natively on a modern Linux distribution and has a public OSI-approved license and repository.
Estimated domain authority DA ~60DofollowFreeModerateLive, conditionalOpen-Source Discovery - SubmitLocal-First Software (LoFi) (opens in a new tab)
Local-First Software (LoFi)
lofi.soPropose eligible your tool client-side or offline-first tools to the public directory with accurate site and source links.
FreeModerateLive, conditionalLocal-First Software Directory - SubmitMixcloud (opens in a new tab)
Mixcloud
mixcloud.comUpload your original audio explainer and place relevant resource links naturally in the show description.
Estimated domain authority DA ~90NofollowFreeModerateLive, conditionalAudio & Podcast - SubmitNew Relic Instant Observability (opens in a new tab)
New Relic Instant Observability
newrelic.comCreate a useful quickstart for monitoring your real deployment, with instrumentation instructions, a working data source, dashboards, alerts, documentation, and a GitHub contribution.
Estimated domain authority DA ~90FreeModerateLive, conditionalObservability 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.