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 84–81
- SubmitBioconductor (opens in a new tab)
Bioconductor
bioconductor.orgIf your tool ships a legitimate genomics or bioinformatics utility, package it for R with complete vignettes and submit it for review.
Estimated domain authority DA ~75FreeModerateVerified live - SubmitCrawlRabbit (opens in a new tab)
CrawlRabbit
crawlrabbit.comCreate a free owner account, submit your tool and manage the approved public listing.
FreeModerateVerified live - SubmitDailyweb.Design (opens in a new tab)
Dailyweb.Design
dailyweb.designSubmit your tool strongest polished page for free manual design review and possible gallery inclusion.
FreeModerateVerified live - SubmitLottieFiles (opens in a new tab)
LottieFiles
lottiefiles.comPublish original your tool privacy, safety, or accessibility micro-animations as a coherent creator collection, with a contextual project link where the profile permits it.
Estimated domain authority DA ~80NofollowFree + paid tierModerateVerified live
Usefulimpact 66–63
- SubmitADPList (opens in a new tab)
ADPList
adplist.orgApply only if the founder or team member has real design/engineering leadership experience and intends to provide genuine mentoring, then add an accurate personal website/profile reference.
Estimated domain authority DA ~60NofollowFreeModerateVerified live - SubmitMentorCruise (opens in a new tab)
MentorCruise
mentorcruise.comHave a qualified founder or senior team member apply as a privacy, accessibility, product, or engineering mentor and add your tool only as truthful experience/personal-site evidence.
Estimated domain authority DA ~55FreeModerateVerified live - SubmitNmap NSE Documentation (opens in a new tab)
Nmap NSE Documentation
nmap.orgDevelop a safe, useful Nmap NSE script related to your security check and include accurate author or homepage metadata.
Estimated domain authority DA ~80FreeModerateVerified live - SubmitProjectDiscovery Nuclei Templates (opens in a new tab)
ProjectDiscovery Nuclei Templates
projectdiscovery.ioCreate high-confidence defensive templates for authorized checks of privacy leaks or misconfigurations, include safe matchers and test evidence, then submit them for review.
Estimated domain authority DA ~60FreeModerateVerified live - SubmitSigmaHQ Rules (opens in a new tab)
SigmaHQ Rules
sigmahq.ioCreate generic defensive Sigma rules for privacy-leak, credential-exposure, or scam-related log patterns, validate them, cite legitimate references, and submit a PR.
Estimated domain authority DA ~45FreeModerateVerified live - SubmitTrustpilot (opens in a new tab)
Trustpilot
trustpilot.comClaim business profile for your tool.
Estimated domain authority DA ~95NofollowFree + paid tierModerateNot submitted
Long tailimpact 46–43
- SubmitCoMSES Computational Model Library (opens in a new tab)
CoMSES Computational Model Library
comses.netPublish a documented social, ecological, or computational model with source, narrative documentation, contributors, and reproducibility metadata.
Estimated domain authority DA ~50FreeModerateVerified live - Submitnf-core (opens in a new tab)
nf-core
nf-co.rePropose and contribute your standards-compliant -related bioinformatics privacy module, subworkflow, or full Nextflow pipeline.
Estimated domain authority DA ~50FreeModerateVerified live - SubmitReScience C (opens in a new tab)
ReScience C
rescience.github.ioIndependently reproduce a published computational privacy or security result with open code and data, using your tool only where scientifically justified.
Estimated domain authority DA ~35FreeModerateVerified live - SubmitSoftwareReviews (opens in a new tab)
SoftwareReviews
softwarereviews.comClaim your vendor profile and invite verified users to review your software.
Estimated domain authority DA ~65Sometimes dofollowFreeModerateNeeds checking - SubmitThe Manifest (opens in a new tab)
The Manifest
themanifest.comService businesses can create a profile, which is shared with Clutch, and collect verified reviews.
Estimated domain authority DA ~65Sometimes dofollowFreeModerateNeeds checking - SubmitVisual Objects (opens in a new tab)
Visual Objects
visualobjects.comCreative and design agencies can create a profile and add portfolio items.
Estimated domain authority DA ~60Sometimes dofollowFreeModerateNeeds checking - SubmitAppFutura (opens in a new tab)
AppFutura
appfutura.comApp development firms can create a profile with portfolio and client reviews.
Estimated domain authority DA ~55Sometimes dofollowFree + paid tierModerateNeeds checking - SubmitProvenExpert (opens in a new tab)
ProvenExpert
provenexpert.comCreate business profile linking site.
Estimated domain authority DA ~75NofollowFree + paid tierModerateNot submitted - 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 live - SubmitSitejabber (opens in a new tab)
Sitejabber
sitejabber.comClaim business profile.
Estimated domain authority DA ~85NofollowFree + paid tierModerateNot submitted - SubmitTechreviewer (opens in a new tab)
Techreviewer
techreviewer.coCreate a company profile and gather verified client reviews for your dev or IT services.
Estimated domain authority DA ~50Sometimes dofollowFree + paid tierModerateNeeds checking
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.