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
High impactimpact 88
- SubmitW3C Web Accessibility Evaluation Tools List (opens in a new tab)
Submit one released evaluator such as WCAG Quick Auditor with accurate standards, scope, license, release date, and accessibility-statement details.
Estimated domain authority DA ~95PaidModerateVerified liveAccessibility Directory
Usefulimpact 74
- SubmitCivic Tech Field Guide (opens in a new tab)
Civic Tech Field Guide
civictech.guideSubmit only your tool tools with a clear civic or public-interest use case, using the official project name, URL, one-sentence description, accurate category, and contact email.
Estimated domain authority DA ~40PaidModerateVerified livePublic-Interest Directory - SubmitCSS Weekly (opens in a new tab)
CSS Weekly
css-weekly.comSponsor your frontend, accessibility, CSS, or developer utility with a useful demo and audience-specific copy.
Estimated domain authority DA ~45Sometimes dofollowPaidModerateVerified liveNewsletter / Resource Page - Submitdata.world (opens in a new tab)
data.world
data.worldPublish a documented synthetic privacy, redaction, accessibility, or scam-detection benchmark dataset.
Estimated domain authority DA ~75NofollowPaidModerateVerified liveData and AI Catalog - SubmitDense Discovery (opens in a new tab)
Dense Discovery
densediscovery.comPromote a privacy-respecting or thoughtfully designed your tool utility through a classified or main sponsor slot.
Estimated domain authority DA ~50PaidModerateVerified liveNewsletter / Resource Page - SubmitEasy With AI (opens in a new tab)
Easy With AI
easywithai.comSubmit your tool strongest AI-powered utilities with a polished listing.
Estimated domain authority DA ~35PaidModerateVerified liveAI Tool Directory - SubmitFreshworks Marketplace (opens in a new tab)
Freshworks Marketplace
freshworks.comBuild a Freshdesk or Freshservice app that deliberately sends selected ticket text to your PII or scam check and returns a transparent report.
Estimated domain authority DA ~85NofollowPaidModerateVerified liveCustomer-support App Marketplace - SubmitInkscape Extension Gallery (opens in a new tab)
Inkscape Extension Gallery
inkscape.orgPublish an Inkscape extension for SVG metadata cleanup, privacy inspection, or accessible-export checks.
Estimated domain authority DA ~75PaidModerateVerified liveDeveloper Ecosystem - SubmitMendix Marketplace (opens in a new tab)
Mendix Marketplace
mendix.comBuild a Mendix connector or module that invokes your tool on user-selected records or files and displays structured reports.
Estimated domain authority DA ~75PaidModerateVerified liveLow-Code - SubmitMetaFilter Projects (opens in a new tab)
MetaFilter Projects
metafilter.comAfter becoming a genuine member, submit your tool as a completed web project with a plain factual description in MetaFilter Projects only.
Estimated domain authority DA ~85NofollowPaidModerateVerified liveProject Showcase - SubmitOBS Resources (opens in a new tab)
OBS Resources
obsproject.comBuild an OBS privacy guard that detects exposed secrets or sensitive screen regions before streaming.
Estimated domain authority DA ~80PaidModerateVerified liveDeveloper Ecosystem - SubmitONLYOFFICE Plugin Marketplace (opens in a new tab)
ONLYOFFICE Plugin Marketplace
onlyoffice.comBuild an ONLYOFFICE plugin for document redaction, metadata cleanup, or secret scanning.
Estimated domain authority DA ~75PaidModerateVerified liveDeveloper Ecosystem - SubmitSentry Integration Directory (opens in a new tab)
Sentry Integration Directory
sentry.ioBuild a Sentry integration that detects PII or credentials before issue data is exported or shared.
Estimated domain authority DA ~85PaidModerateVerified liveDeveloper Ecosystem - SubmitThe Carpentries Incubator (opens in a new tab)
The Carpentries Incubator
carpentries.orgCreate a substantive privacy, security, or accessibility lesson using your tool exercises and propose it through the Incubator.
Estimated domain authority DA ~65PaidModerateVerified liveEducation - SubmitZendesk Marketplace (opens in a new tab)
Zendesk Marketplace
zendesk.comCreate a Zendesk app or marketing-only integration for selected-ticket PII and scam checks with your tool support and pricing links.
Estimated domain authority DA ~90PaidModerateVerified liveCustomer-support App Marketplace - SubmitZoho Marketplace (opens in a new tab)
Zoho Marketplace
zoho.comBuild a Zoho extension for document privacy, text cleanup, or data-export checks and submit its support, policy, guide, and website links.
Estimated domain authority DA ~90PaidModerateVerified liveBusiness App Marketplace
Long tailimpact 56–36
- SubmitAdalo Component Marketplace (opens in a new tab)
Adalo Component Marketplace
adalo.comBuild and document a real Adalo component library for your workflow and apply for marketplace publication.
Estimated domain authority DA ~70NofollowPaidModerateVerified liveNo-code Component Marketplace - SubmitAlibaba Cloud Marketplace (opens in a new tab)
Alibaba Cloud Marketplace
alibabacloud.comOffer your tool as a documented SaaS or BYOL deployment for Alibaba Cloud customers with clear privacy controls and support.
Estimated domain authority DA ~85NofollowPaidModerateVerified liveCloud Marketplace - SubmitBytes (opens in a new tab)
Bytes
bytes.devSponsor your tool’s strongest browser or JavaScript-based developer utility with copy tailored to working JS developers.
Estimated domain authority DA ~50PaidModerateVerified liveNewsletter / Resource Page - SubmitChangelog Media (opens in a new tab)
Changelog Media
changelog.comRun a clearly disclosed campaign for your tool’s developer and security tools across relevant Changelog podcasts or newsletters.
Estimated domain authority DA ~70Sometimes dofollowPaidModerateVerified liveNewsletter / Resource Page - SubmitContently (opens in a new tab)
Contently
contently.comUse a real writer or designer identity, add authored your tool work as a properly credited clip or case study, and include the personal website link in the profile.
Estimated domain authority DA ~70NofollowPaidModerateVerified liveCreator Portfolio - SubmitDefold Asset Portal (opens in a new tab)
Defold Asset Portal
defold.comPublish a reusable Defold privacy-safe logging, security, or build-audit tool.
Estimated domain authority DA ~60PaidModerateVerified liveDeveloper Ecosystem - SubmitDigital Public Goods Alliance (opens in a new tab)
Digital Public Goods Alliance
digitalpublicgoods.netAfter your tool has a genuinely open-source, well-documented public-interest component, complete the eligibility assessment and nominate that specific component.
Estimated domain authority DA ~55PaidModerateVerified livePublic-Interest Technology - SubmitFIWARE Marketplace (opens in a new tab)
FIWARE Marketplace
fiware.orgBuild a genuine FIWARE-powered privacy, consent, data-space, or civic-safety solution, document its architecture and data models, then submit it for expert validation.
Estimated domain authority DA ~60PaidModerateVerified liveSmart City & IoT - SubmitGDevelop Community Extensions (opens in a new tab)
GDevelop Community Extensions
gdevelop.ioCreate a GDevelop extension for safe local storage, consent UX, or secret-free analytics configuration.
Estimated domain authority DA ~60PaidModerateVerified liveDeveloper Ecosystem - SubmitHubSpot App Marketplace (opens in a new tab)
HubSpot App Marketplace
hubspot.comBuild your public OAuth integration, gain qualifying installs, then submit setup docs plus support, privacy, and terms URLs.
Estimated domain authority DA ~95NofollowPaidModerateVerified liveCRM App Marketplace - SubmitJournal of Open Research Software (opens in a new tab)
Journal of Open Research Software
openresearchsoftware.metajnl.comOpen-source your reusable research-focused component, archive it with a persistent identifier, and submit a software metapaper with project/code links.
Estimated domain authority DA ~55PaidModerateVerified liveResearch Publication - SubmitPrinciples for Digital Development (opens in a new tab)
Principles for Digital Development
digitalprinciples.orgObtain senior approval, submit the signed endorsement materials, implement the Principles and share a real case study.
Estimated domain authority DA ~55PaidModerateVerified liveDigital Development - SubmitSalesforce AppExchange and AgentExchange (opens in a new tab)
Salesforce AppExchange and AgentExchange
salesforce.comBuild a genuine Salesforce package or API solution for selected-record privacy or document checks and complete its company and listing profile.
Estimated domain authority DA ~95PaidModerateVerified liveEnterprise App Marketplace - SubmitSetapp Developer Program (opens in a new tab)
Setapp Developer Program
setapp.comSubmit a mature macOS, iOS, or web companion app that provides your privacy workflow and links to its official product documentation.
Estimated domain authority DA ~80PaidModerateVerified liveApp Distribution - SubmitShopware Store (opens in a new tab)
Shopware Store
shopware.comBuild a Shopware admin extension for privacy and accessibility checks on selected catalog content, media, and exports.
Estimated domain authority DA ~75PaidModerateVerified liveEcommerce - SubmitSketchUp Extension Warehouse (opens in a new tab)
SketchUp Extension Warehouse
sketchup.comBuild a SketchUp extension for model metadata sanitization or accessibility-ready export checks.
Estimated domain authority DA ~85PaidModerateVerified liveDeveloper Ecosystem - SubmitStripe App Marketplace (opens in a new tab)
Stripe App Marketplace
stripe.comBuild a Stripe app that sends selected non-sensitive invoice or export data to your clearly scoped audit and publish complete documentation.
Estimated domain authority DA ~95PaidModerateVerified livePayments App Marketplace - SubmitTLDR (opens in a new tab)
TLDR
tldr.techPlace your targeted campaign in TLDR Dev, InfoSec, AI, Tech, Product, or Founders with a focused landing page.
Estimated domain authority DA ~65PaidModerateVerified liveNewsletter / Resource Page - SubmitVTEX App Store (opens in a new tab)
VTEX App Store
vtex.comBuild your VTEX IO storefront or admin privacy utility, define billing, and submit it for homologation.
Estimated domain authority DA ~80PaidModerateVerified liveEcommerce App Marketplace - SubmitVultr Marketplace (opens in a new tab)
Vultr Marketplace
vultr.comPublish a secure one-click self-hosted your tool image or cloud-init deployment with documentation and support.
Estimated domain authority DA ~75PaidModerateVerified liveCloud Marketplace - SubmitAgentic AI Foundation (opens in a new tab)
Agentic AI Foundation
aaif.ioApply only with a meaningful open agent-security or MCP-governance contribution and an ongoing participation plan.
PaidModerateVerified liveAgentic AI Standards - SubmitCiviCERT (opens in a new tab)
CiviCERT
civicert.orgApply only after operating a real civil-society digital-security help desk and meeting network operations and vetting requirements.
Estimated domain authority DA ~40PaidModerateVerified liveCivil-Society Security - SubmitDirectory of Open Access Books (opens in a new tab)
Directory of Open Access Books
doabooks.orgApply only after your tool operates a genuine OA scholarly-book publishing program, then submit peer-reviewed privacy-tech books.
Estimated domain authority DA ~70PaidModerateVerified liveEducation/OER - SubmitLF AI & Data Foundation (opens in a new tab)
LF AI & Data Foundation
lfaidata.foundationJoin only when your tool will fund and actively contribute to open-source AI or data work.
Estimated domain authority DA ~55PaidModerateVerified liveOpen-source AI Foundation
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.