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 filters1
Long tailimpact 43–36
- SubmitNavTools AI (opens in a new tab)
NavTools AI
navtools.aiSubmit your tool AI utilities and choose free review or paid placement.
Estimated domain authority DA ~25Free + paid tierModerateVerified liveAI Tool Directory - SubmitNextdoor Business (opens in a new tab)
Nextdoor Business
nextdoor.comCreate a free page only for your genuine local office or service area and add accurate story, categories, website, and contact data.
Estimated domain authority DA ~85NofollowFree + paid tierModerateVerified liveLocal / Business Listing - SubmitNITRC (opens in a new tab)
NITRC
nitrc.orgRegister an actual neuroimaging privacy, quality-control, or data-processing tool through NITRC's resource workflow.
Estimated domain authority DA ~55Free + paid tierModerateVerified liveNeuroinformatics - SubmitProLinkDirectory (opens in a new tab)
ProLinkDirectory
prolinkdirectory.comSubmit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Estimated domain authority DA ~30DofollowFree + paid tierModerateVerified liveWeb / business directory - SubmitQeios (opens in a new tab)
Qeios
qeios.comPost a substantive study of privacy-preserving browser tools or redaction reliability with transparent methods and data.
Estimated domain authority DA ~50Free + paid tierModerateVerified liveOpen Science Publishing - SubmitReach360 Launch (opens in a new tab)
Reach360 Launch
reach360.appSubmit your tool as a genuine indie product and complete the requested launch information.
FreeInvolvedVerified liveLaunch Directory - SubmitScienceOpen Preprints (opens in a new tab)
ScienceOpen Preprints
scienceopen.comUpload an unpublished evaluation study or research poster about your privacy or accessibility method with supporting code and data.
Estimated domain authority DA ~75Free + paid tierModerateVerified liveOpen Science Publishing - SubmitSitePromotionDirectory (opens in a new tab)
SitePromotionDirectory
sitepromotiondirectory.comSubmit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Estimated domain authority DA ~25Free + paid tierModerateVerified liveWeb / business directory - SubmitSolid Applications (opens in a new tab)
Solid Applications
solidproject.orgBuild a genuine Solid privacy utility that lets users choose identity providers and stores or retrieves their data from Solid Pods, then confirm the current listing handoff with maintainers.
Estimated domain authority DA ~60FreeInvolvedVerified livePersonal Data - SubmitStartin.LV Startup Database (opens in a new tab)
Startin.LV Startup Database
startin.lvApply only if the operating company is genuinely incorporated in Latvia and fits the database's scalable-startup criteria.
Estimated domain authority DA ~35Free + paid tierModerateVerified liveRegional startup directory - Submitstartup.ch (opens in a new tab)
startup.ch
startup.chApply for a profile only if your tool is operated by a scalable high-tech startup incorporated and headquartered in Switzerland.
Estimated domain authority DA ~45Free + paid tierModerateVerified liveRegional startup directory - SubmitTaplink (opens in a new tab)
Taplink
taplink.ccCreate one branded Taplink page and add a curated set of your tool product, category and contact links.
Estimated domain authority DA ~75NofollowFree + paid tierModerateVerified liveCreator Profile / Link Hub - SubmitTradeIndia (opens in a new tab)
TradeIndia
tradeindia.comList your genuine paid B2B product or service, complete the company profile, and provide accurate seller documentation.
Estimated domain authority DA ~75NofollowFree + paid tierModerateVerified liveLocal / Business Listing - SubmitTrusted Introducer (opens in a new tab)
Trusted Introducer
trusted-introducer.orgList an operational CSIRT, CERT, SOC, ISAC or PSIRT after securing sponsors and passing the community-vote process.
Estimated domain authority DA ~45Free + paid tierModerateVerified liveDigital Safety - SubmitWeekHack (opens in a new tab)
WeekHack
weekhack.comSubmit your real release to the free weekly launch queue.
Free + paid tierModerateVerified liveLaunch Directory - SubmitFoundation for Public Code (opens in a new tab)
Foundation for Public Code
publiccode.netIf your component is built with or for a public body, publish a standards self-assessment and pursue stewardship/assessment.
Estimated domain authority DA ~45Not statedModerateVerified liveCivic Tech - SubmitUpRank (opens in a new tab)
UpRank
uprank.comSubmit your tool for manual inclusion in the software directory.
Not statedModerateVerified liveSoftware Directory - SubmitZabbix Integration Partners (opens in a new tab)
Zabbix Integration Partners
zabbix.comDevelop a maintained Zabbix template/integration for your tool and apply for Integration Partner review and Marketplace visibility.
Estimated domain authority DA ~75Not statedModerateVerified liveMonitoring Ecosystem - SubmitSaaSKart (opens in a new tab)
SaaSKart
saaskart.coConsider a verified vendor profile only if the India-focused buyer exposure justifies a recurring listing budget.
Not statedInvolvedVerified liveSoftware review marketplace - SubmitAIapps (opens in a new tab)
AIapps
aiapps.comConsider only after your tool has a substantial AI feature and the directory offers business value beyond a link.
Estimated domain authority DA ~35PaidQuickVerified liveAI Tool Directory - SubmitEOSC Federation (opens in a new tab)
EOSC Federation
eosc.euOnboard your operational research-facing service through an eligible EOSC Node using the Federation Handbook process.
Estimated domain authority DA ~55PaidQuickVerified liveEuropean Research Infrastructure - SubmitFIRST (opens in a new tab)
FIRST
first.orgApply as Associate or full Member only after operating a credible incident-response team/program and completing sponsorship/review.
Estimated domain authority DA ~75PaidQuickVerified liveDigital Safety - 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 - SubmitOASIS Open (opens in a new tab)
OASIS Open
oasis-open.orgJoin only to contribute substantively to relevant security or privacy technical committees and use approved organization metadata.
Estimated domain authority DA ~80PaidModerateVerified liveOpen Standards - SubmitOpen Source Initiative (opens in a new tab)
Open Source Initiative
opensource.orgAfter releasing meaningful OSI-licensed code, consider sponsorship only when supporting OSI aligns with your tool strategy.
Estimated domain authority DA ~85PaidModerateVerified liveOpen-source Stewardship
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.