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AltF Backlinks

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

1–25 of 25 opportunities

Long tailimpact 45–43

  • Alignable

    alignable.com

    Create your business profile only if it genuinely operates in the United States or Canada and can be verified there.

    Estimated domain authority DA ~75NofollowFree + paid tierQuickVerified liveLocal / Business Listing
    SubmitAlignable (opens in a new tab)
  • Lnk.Bio

    lnk.bio

    Build one your tool profile with a short description and curated links to the most useful tool pages.

    Estimated domain authority DA ~70NofollowFree + paid tierQuickVerified liveCreator Profile / Link Hub
    SubmitLnk.Bio (opens in a new tab)
  • Solo.to

    solo.to

    Create your business page with concise brand details and links to the homepage, popular tools and socials.

    Estimated domain authority DA ~60NofollowFree + paid tierQuickVerified liveCreator Profile / Link Hub
    SubmitSolo.to (opens in a new tab)
  • UK Startup Hub

    ukstartuphub.com

    Submit a concise company profile only if your tool is a genuine UK startup or has a verifiable UK operating entity.

    Free + paid tierQuickVerified liveRegional startup directory
    SubmitUK Startup Hub (opens in a new tab)
  • Claim your tool’s genuine operating location only if the business is eligible, then add accurate website and contact information.

    Estimated domain authority DA ~95NofollowFree + paid tierQuickVerified liveLocal / Business Listing
    SubmitYelp for Business (opens in a new tab)
  • AnyFlip

    anyflip.com

    Upload your original useful guide, complete its metadata and include relevant citations or resource links.

    Estimated domain authority DA ~65Free + paid tierModerateVerified liveDocument Publishing
    SubmitAnyFlip (opens in a new tab)
  • Bio Sites

    bio.site

    Create your free Bio Site and organize homepage, tool-category and social links for real visitors.

    Estimated domain authority DA ~70NofollowFree + paid tierModerateVerified liveCreator Profile / Link Hub
    SubmitBio Sites (opens in a new tab)
  • ChamberofCommerce.com

    chamberofcommerce.com

    Add or claim your tool only if it has a genuine US business presence, then verify the website and business details.

    Estimated domain authority DA ~75Sometimes dofollowFree + paid tierModerateVerified liveLocal / Business Listing
    SubmitChamberofCommerce.com (opens in a new tab)
  • Founded in UK

    foundeduk.com

    Use the 'Submit your British startup' application only if your tool was genuinely founded in the UK.

    Free + paid tierModerateVerified liveRegional startup directory
    SubmitFounded in UK (opens in a new tab)
  • GainWeb

    gainweb.org

    Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.

    Estimated domain authority DA ~20DofollowFree + paid tierModerateVerified liveWeb / business directory
    SubmitGainWeb (opens in a new tab)
  • LaunchBuff

    launchbuff.com

    Use the free launch route and earn visibility through a genuine product submission.

    Free + paid tierModerateVerified liveLaunch Directory
    SubmitLaunchBuff (opens in a new tab)
  • LaunchHive

    launchhive.io

    Submit your tool through the free queue with accurate product details and assets.

    Free + paid tierModerateVerified liveLaunch Directory
    SubmitLaunchHive (opens in a new tab)
  • NavTools AI

    navtools.ai

    Submit your tool AI utilities and choose free review or paid placement.

    Estimated domain authority DA ~25Free + paid tierModerateVerified liveAI Tool Directory
    SubmitNavTools AI (opens in a new tab)
  • Nextdoor Business

    nextdoor.com

    Create 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
    SubmitNextdoor Business (opens in a new tab)
  • NITRC

    nitrc.org

    Register an actual neuroimaging privacy, quality-control, or data-processing tool through NITRC's resource workflow.

    Estimated domain authority DA ~55Free + paid tierModerateVerified liveNeuroinformatics
    SubmitNITRC (opens in a new tab)
  • ProLinkDirectory

    prolinkdirectory.com

    Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.

    Estimated domain authority DA ~30DofollowFree + paid tierModerateVerified liveWeb / business directory
    SubmitProLinkDirectory (opens in a new tab)
  • Qeios

    qeios.com

    Post 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
    SubmitQeios (opens in a new tab)
  • ScienceOpen Preprints

    scienceopen.com

    Upload 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
    SubmitScienceOpen Preprints (opens in a new tab)
  • SitePromotionDirectory

    sitepromotiondirectory.com

    Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.

    Estimated domain authority DA ~25Free + paid tierModerateVerified liveWeb / business directory
    SubmitSitePromotionDirectory (opens in a new tab)
  • Apply 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
    SubmitStartin.LV Startup Database (opens in a new tab)
  • startup.ch

    startup.ch

    Apply 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
    Submitstartup.ch (opens in a new tab)
  • Taplink

    taplink.cc

    Create 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
    SubmitTaplink (opens in a new tab)
  • TradeIndia

    tradeindia.com

    List 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
    SubmitTradeIndia (opens in a new tab)
  • Trusted Introducer

    trusted-introducer.org

    List 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
    SubmitTrusted Introducer (opens in a new tab)
  • WeekHack

    weekhack.com

    Submit your real release to the free weekly launch queue.

    Free + paid tierModerateVerified liveLaunch Directory
    SubmitWeekHack (opens in a new tab)

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.

  1. 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.

  2. 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.

  3. 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.

  4. 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 view

An 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

Common questions

Do backlinks still matter for ranking in 2026?
Links remain one signal among many, and low-quality bulk links do more harm than good. What still works is being listed where your buyers actually look — directories with real traffic, registries your peers use, and launch platforms with engaged audiences. Every entry in this list is a place a human might plausibly find you, which is why they are worth submitting to regardless of link equity.
Which submissions should I do first?
Start with the quick wins filter: free, low effort, and not in the lowest priority band. 208 of the 1,964 entries qualify, and those are the ones where a single form submission gets you a live listing the same week. Launch platforms are worth saving until your product is genuinely ready, because you only get one good attempt at each.
How is the impact score calculated?
It starts from a hand-assigned priority band (do first, high, medium, later), then adjusts for cost and effort. A free, quick opportunity scores above a paid, involved one in the same band, because it is the one you can realistically finish today. The score is a queueing aid, not a measure of domain authority.
Are these links free?
1,628 of the 1,964 entries are free to submit to or offer a free tier that includes a listing. Cost is shown on every row, and the "nothing to pay" filter narrows the list to exactly those.
Which backlink sites are dofollow?
44 entries are known to give a followed link on a normal listing, and more give one only in some placements. The link type is shown on every row and can be filtered. Sites change their link policy without notice, so treat the label as a starting point and check the live page after you are listed. A nofollow link from a busy site still sends visitors and helps search engines discover you.
What does the DA number mean?
It is our estimate of the site's domain authority, a third-party style 0-100 score of how strong a domain's link profile is, rounded to the nearest 5. 1,580 of the 1,964 sites have one. It is useful for comparing sites, not a Google metric, so relevance to your niche still matters more.
How do I get backlinks for a new website?
1. 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. 2. 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. 3. 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. 4. 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.
Will submitting everywhere hurt my site?
Submitting to spam directories can. That is why this list is curated rather than scraped, and why entries carry a status showing whether they have been verified as live. Skip anything that promises hundreds of links for a fee, and prefer places where a real person reviews submissions.