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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

1–51 of 51 opportunities

The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.

Submission opportunities with impact score, cost, effort, priority, status and preparation notes. Scroll horizontally for all columns.
#Impact (sorted)Site — sort by thisEst. DA — sort by thisLinkDomainTypeCostEffort — sort by thisPriorityStatusWhat to prepareRules / caveatCheckedActions
198Open Source Technology Improvement Fund45Link type unknownostif.orgOther opportunitiesFreeModerateDo firstLive, conditionalRequest an audit for a mature open-source your tool security component, providing maintainer contacts, architecture, threat model, scope, tests, and a remediation commitment.Intended for real open-source projects able to collaborate throughout scoping, audit, fixes, disclosure, and publication of the final report; selection and funding are not guaranteed.2026-08-03Open Open Source Technology Improvement Fund submit page (new tab)Open Source Technology Improvement Fund details
298Spreaker85Nofollowspreaker.comOther opportunitiesFreeModerateDo firstLive, conditionalCreate or import a genuine your tool show, keep it public, set its official Website field and publish useful episodes.Correct ownership and original/licensed audio are required; no promotional shell podcast.2026-08-04Open Spreaker submit page (new tab)Spreaker details
395Podbean85Nofollowpodbean.comOther opportunitiesFree + paid tierModerateDo firstLive, conditionalPublish a real your tool episode and add contextual links to resources actually discussed in its show notes.No keyword stuffing or shell podcast; some custom show and episode website fields require Unlimited Audio or higher.2026-08-04Open Podbean submit page (new tab)Podbean details
488FOSS United Grants45Link type unknownfossunited.orgOther opportunitiesPaidModerateDo firstLive, conditionalPropose a genuinely open-source, privacy-preserving your tool component with a public roadmap, Indian community benefit, budget, milestones, and maintenance plan.Funding is for FOSS creators, maintainers, projects, and communities in India; a closed-source commercial site or a marketing-only proposal is not eligible.2026-08-03Open FOSS United Grants submit page (new tab)FOSS United Grants details
586APIList.fun45Link type unknownapilist.funOther opportunitiesFreeQuickHighLive, conditionalRecommend an official your tool API with its documentation URL, concise Markdown description, category, and technical details.Submit only an active public API with accurate auth, SSL, request, and response information.2026-08-05Open APIList.fun submit page (new tab)APIList.fun details
686APIs.guru OpenAPI Directory50Link type unknownapis.guruOther opportunitiesFreeQuickHighLive, conditionalWhen your tool exposes a stable public API, host an official OpenAPI definition at a permanent URL and submit it with accurate ownership, category, logo, and metadata.The API must be public through clearly documented access steps, persistent, independently useful, and described by a valid machine-readable definition. APIs.guru aggregates rather than hosts the specification and automatically rechecks its source, so keep the canonical spec stable and current.2026-08-03Open APIs.guru OpenAPI Directory submit page (new tab)APIs.guru OpenAPI Directory details
786Goodpods60Nofollowgoodpods.comOther opportunitiesFreeQuickHighLive, conditionalSearch for and claim a real your tool podcast, then keep its RSS-supplied website and episode metadata accurate.Claim only a show AltFTool owns; authentic podcast content and RSS ownership are required.2026-08-04Open Goodpods submit page (new tab)Goodpods details
886Listen Notes80Dofollowlistennotes.comOther opportunitiesFreeQuickHighLive, conditionalSubmit a real your tool podcast RSS feed whose show website and episode notes naturally reference relevant tools.Valid human-made podcast with substantive episodes only; low-quality or link-only feeds are rejected.2026-08-04Open Listen Notes submit page (new tab)Listen Notes details
986Player FM80Nofollowplayer.fmOther opportunitiesFreeQuickHighLive, conditionalSubmit a genuine your tool podcast RSS feed or Apple Podcasts URL with accurate show-website and episode metadata.Feed must be public, accessible and contain playable audio enclosures; do not submit a fake link-only feed.2026-08-04Open Player FM submit page (new tab)Player FM details
1086Pocket Casts70Link type unknownpocketcasts.comOther opportunitiesFreeQuickHighLive, conditionalSubmit a real public your tool podcast RSS feed whose metadata and episode notes reference the official site naturally.Requires a valid public RSS feed and genuine episodes; do not submit a shell or private feed as public.2026-08-05Open Pocket Casts submit page (new tab)Pocket Casts details
1186PulseMCP45Link type unknownpulsemcp.comOther opportunitiesFreeQuickHighLive, conditionalSubmit your tool MCP repository or public server URL, preferably after publishing it to the official MCP Registry.Registry data is processed periodically; only submit a real repository, server or client.2026-08-04Open PulseMCP submit page (new tab)PulseMCP details
1286PWA Directory35Link type unknownpwa.directoryOther opportunitiesFreeQuickHighLive, conditionalFirst pass PWA checks, then submit the installable HTTPS app with manifest, service worker, offline behavior, icons, and screenshots.Requires a valid manifest, registered service worker, useful offline behavior, HTTPS, no broken links, and more than a bare website wrapper.2026-08-03Open PWA Directory submit page (new tab)PWA Directory details
1384Amazon Music for Podcasters95Nofollowpodcasters.amazon.comOther opportunitiesFreeModerateHighLive, conditionalSubmit and verify one genuine your tool podcast feed for distribution on Amazon Music and Audible.RSS must expose a valid owner email; rights, license, and platform rules apply, and review may take up to one week.2026-08-05Open Amazon Music for Podcasters submit page (new tab)Amazon Music for Podcasters details
1484Castbox75Nofollowcastbox.fmOther opportunitiesFreeModerateHighLive, conditionalAdd or claim a real your tool podcast in Creator Studio and complete channel, site and episode metadata.Must own the show and verify access to its RSS email; publish original audio content.2026-08-04Open Castbox submit page (new tab)Castbox details
1584LinuxLinks60Dofollowlinuxlinks.comOther opportunitiesFreeModerateHighLive, conditionalSubmit a maintained your tool desktop or CLI utility only after it runs natively on a modern Linux distribution and has a public OSI-approved license and repository.The program must be open source, current, searchable as not already covered, buildable on modern Linux, and accompanied by its repository, license, website, and factual feature summary.2026-08-03Open LinuxLinks submit page (new tab)LinuxLinks details
1684Mixcloud90Nofollowmixcloud.comOther opportunitiesFreeModerateHighLive, conditionalUpload an original your tool audio explainer and place relevant resource links naturally in the show description.Owned or licensed genuine audio only; no synthetic link-only upload, and basic-tier limits apply.2026-08-04Open Mixcloud submit page (new tab)Mixcloud details
1784New Relic Instant Observability90Link type unknownnewrelic.comOther opportunitiesFreeModerateHighLive, conditionalCreate a useful quickstart for monitoring a real your tool deployment, with instrumentation instructions, a working data source, dashboards, alerts, documentation, and a GitHub contribution.Telemetry must actually reach New Relic and the quickstart must help users monitor a real use case. Follow catalog schema, asset, testing, GitHub review, and maintenance requirements; do not submit a brand-only listing.2026-08-03Open New Relic Instant Observability submit page (new tab)New Relic Instant Observability details
1884Podcast Addict70Link type unknownpodcastaddict.comOther opportunitiesFreeModerateHighLive, conditionalSubmit a valid public your tool podcast feed and keep website and episode-link metadata accurate.Feed must contain playable genuine episodes; directory review may take time.2026-08-04Open Podcast Addict submit page (new tab)Podcast Addict details
1984REUSE API50Link type unknownreuse.softwareOther opportunitiesFreeModerateHighLive, conditionalMake a real public your tool repository REUSE-compliant, register its Git URL, and link the resulting compliance page from project docs.Public maintained repository only; main branch is checked and email confirmation is required; fix findings rather than using a decorative badge.2026-08-05 official REUSE API and register pagesOpen REUSE API submit page (new tab)REUSE API details
2084Spotify for Creators95Nofollowcreators.spotify.comOther opportunitiesFreeModerateHighLive, conditionalHost or claim a genuine your tool show, verify the RSS email, and publish accurate episode notes with relevant HTTPS resources.Ownership verification is required; links must support real episode content and display behavior varies by app.2026-08-05Open Spotify for Creators submit page (new tab)Spotify for Creators details
2184Swagger Studio75Nofollowapp.swaggerhub.comOther opportunitiesFreeModerateHighLive, conditionalPublish a real your tool OpenAPI definition publicly with an accurate description and external documentation URL.API must be genuine and the spec valid; set visibility to public and publication status accurately, with no credentials in examples.https://support.smartbear.com/swagger/studio/docs/en/manage-apis/publish-an-api.htmlOpen Swagger Studio submit page (new tab)Swagger Studio details
2283MCP.so50Link type unknownmcp.soOther opportunitiesFree + paid tierQuickHighLive, conditionalSubmit a real public your tool MCP server repository with correct name, install steps and configuration details.Free listing uses random placement and a nofollow link; only submit a working maintained MCP server.2026-08-04Open MCP.so submit page (new tab)MCP.so details
2382DSCI50Link type unknowndsci.inOther opportunitiesNot statedQuickHighLive, conditionalSubmit a corporate membership enquiry with accurate your tool cybersecurity/privacy activities and India entity details.Industry relevance and due diligence apply; acceptance and public profile are not automatic.2026-08-04Open DSCI submit page (new tab)DSCI details
2481AI Verify Foundation35Link type unknownaiverifyfoundation.sgOther opportunitiesFreeInvolvedHighLive, conditionalRun AI Verify on a real your tool AI use case, then submit accurate results, version, experience, lessons and company logo.Requires a genuine model/use case and substantive learnings; editorial acceptance, publication and backlinks are not guaranteed.2026-08-04Open AI Verify Foundation submit page (new tab)AI Verify Foundation details
2581Apple Podcasts for Creators100Nofollowpodcasters.apple.comOther opportunitiesFree + paid tierModerateHighLive, conditionalSubmit a genuine your tool podcast RSS feed in Podcasts Connect and include the official show website in valid metadata.Requires at least one episode, compliant RSS, artwork, content rights, technical validation, and Apple review.2026-08-05Open Apple Podcasts for Creators submit page (new tab)Apple Podcasts for Creators details
2681Luma80Nofollowluma.comOther opportunitiesFree + paid tierModerateHighLive, conditionalPublish a real your tool webinar, demo or workshop with a contextual canonical link in its event details.Event details and host identity must be genuine; do not create empty or duplicate promotional events.2026-08-05Open Luma submit page (new tab)Luma details
2780NASSCOM Membership70Link type unknownnasscom.inOther opportunitiesNot statedModerateHighLive, conditionalApply using an India-registered your tool company/startup and provide the required entity and revenue documents.Due diligence may take 10–15 business days and include documents, calls or a site visit; membership is not guaranteed.2026-08-04Open NASSCOM Membership submit page (new tab)NASSCOM Membership details
2874IAAP45Link type unknownaccessibilityassociation.orgOther opportunitiesPaidModerateHighLive, conditionalEnroll an eligible your tool entity as a small-organization Associate Corporate member and opt into the directory.Approval and membership terms apply; strong fit requires genuine accessibility practice and participation.2026-08-04Open IAAP submit page (new tab)IAAP details
2974MyData Global45Link type unknownmydata.orgOther opportunitiesPaidModerateHighLive, conditionalJoin as an eligible small business and opt in to publication of your tool organization name and profile.Strong fit only if AltFTool commits to human-centric data-rights principles; not for backlink-only membership.2026-08-04Open MyData Global submit page (new tab)MyData Global details
3068itch.io90Nofollowitch.ioOther opportunitiesFreeQuickMediumLive, conditionalPublish a genuine browser or desktop your tool utility with screenshots, documentation and an official-site link.Content must be an actual downloadable or browser-run project and follow itch.io quality/content rules; not a generic directory listing.https://itch.io/developersOpen itch.io submit page (new tab)itch.io details
3168PublicAPIs.io40Link type unknownpublicapis.ioOther opportunitiesFreeQuickMediumLive, conditionalList a legitimate documented your tool API in the relevant developer category using the normal or Pro review queue.API must be real and documented; paid placement should be disclosed and does not guarantee organic ranking value.2026-08-05Open PublicAPIs.io submit page (new tab)PublicAPIs.io details
3266Homebrew75Link type unknownbrew.shOther opportunitiesFreeModerateMediumLive, conditionalAfter releasing a real your tool CLI or native app, submit a tested formula or cask with its canonical homepage.Formula must meet open-source, stability, build and test rules; casks need a supported upstream binary and notability may affect acceptance.2026-08-05 official Homebrew Adding Software and Acceptable Formulae guidesOpen Homebrew submit page (new tab)Homebrew details
3366JSON Schema Store55Link type unknownschemastore.orgOther opportunitiesFreeModerateMediumLive, conditionalAfter your tool has a stable, commonly used JSON or YAML configuration format, contribute its accurate schema and test fixtures so editors can provide validation, completion, and tooltips.SchemaStore is for known file formats, not marketing pages. The schema must be valid, match real files, include the required catalog metadata and tests, pass CI, and stay synchronized with product changes; submit through the community repository review process.2026-08-03Open JSON Schema Store submit page (new tab)JSON Schema Store details
3466NLnet Foundation65Link type unknownnlnet.nlOther opportunitiesFreeModerateMediumLive, conditionalApply with a concrete your tool privacy, security or user-autonomy FOSS work package, milestones, budget and public repository.Highly selective; active-call fit and fully FOSS/open results required. Only accepted projects receive a linked public page.2026-08-04Open NLnet Foundation submit page (new tab)NLnet Foundation details
3563Buzzsprout85Sometimes dofollowbuzzsprout.comOther opportunitiesFree + paid tierModerateMediumLive, conditionalLaunch a real your tool educational podcast, complete its public site, and cite relevant tools and sources in useful show notes.Choose one primary host; publish original episodes and do not duplicate feeds solely to manufacture links.2026-08-05Open Buzzsprout submit page (new tab)Buzzsprout details
3663Cargo75Sometimes dofollowcargo.siteOther opportunitiesFree + paid tierModerateMediumLive, conditionalCreate an authentic your tool or founder design portfolio with substantive case studies and contextual links to shipped tools.Use only real design/product work; public pages may be indexed, but do not create a thin backlink microsite.2026-08-04Open Cargo submit page (new tab)Cargo details
3763PaperCall55Link type unknownpapercall.ioOther opportunitiesFreeInvolvedMediumLive, conditionalSubmit useful your tool-related talks to relevant CFPs or run a genuine community CFP with a public event page.Follow each event's submission rules; no generic pitches, fake events or irrelevant promotional talks.2026-08-05Open PaperCall submit page (new tab)PaperCall details
3863pretalx55Link type unknownpretalx.comOther opportunitiesFree + paid tierModerateMediumLive, conditionalUse pretalx for a genuine your tool community conference or submit relevant talks to events that use the platform.Public pages require a real conference and accepted content; trial-only pages are not a backlink strategy.2026-08-05Open pretalx submit page (new tab)pretalx details
3963ReactJS Example50Dofollowreactjsexample.comOther opportunitiesFreeInvolvedMediumLive, conditionalSubmit a reusable open-source React component extracted from your tool with repository, demo, setup docs and screenshots.Do not submit the commercial landing page or a thin wrapper; project must be genuinely reusable and open source.2026-08-04Open ReactJS Example submit page (new tab)ReactJS Example details
4056Dunked50Link type unknowndunked.comOther opportunitiesPaidModerateMediumLive, conditionalCreate a portfolio for genuine your tool product/design work and use each project's external URL field for the matching live page.Only showcase work actually produced; complete project descriptions and avoid duplicate promotional pages.2026-08-04Open Dunked submit page (new tab)Dunked details
4156Lemon Squeezy70Nofollowlemonsqueezy.comOther opportunitiesPaidModerateMediumLive, conditionalCreate a legitimate free or paid your tool resource or software product and publish it on a branded hosted storefront.Store activation requires identity and business review; never create a dummy product only for a link.2026-08-05Open Lemon Squeezy submit page (new tab)Lemon Squeezy details
4256Open Technology Fund65Link type unknownopentech.fundOther opportunitiesPaidModerateMediumLive, conditionalApply only with a validated open-source privacy or anti-surveillance project that directly helps users facing repressive censorship or surveillance.OTF requires concrete internet-freedom impact and identifiable beneficiary communities in repressive environments; a generic privacy-tool catalogue or claim that it helps everyone will not qualify.2026-08-03Open Open Technology Fund submit page (new tab)Open Technology Fund details
4356OpenSSF70Link type unknownopenssf.orgOther opportunitiesPaidModerateMediumLive, conditionalApply as a General Member only if your tool will meaningfully contribute engineering or resources to open-source security.Not worthwhile for a backlink alone; free Associate tier is restricted to qualifying nonprofits, academia or government.2026-08-04Open OpenSSF submit page (new tab)OpenSSF details
4446FilePuma60Link type unknownfilepuma.comOther opportunitiesFreeModerateLaterLive, conditionalSubmit only after your tool releases a signed Windows desktop utility.Not suitable for a web-only site; requires downloadable software or PAD data.https://www.filepuma.com/submit_program/Open FilePuma submit page (new tab)FilePuma details
4546Maven Central75Link type unknownsonatype.orgOther opportunitiesFreeModerateLaterLive, conditionalRelease a genuine your tool SDK, verify its namespace, sign artifacts, and include accurate project, SCM, license and developer URLs.Strict coordinates, signatures, sources, Javadocs and metadata apply; never publish a placeholder artifact for a link.2026-08-05 official Maven Central publishing documentationOpen Maven Central submit page (new tab)Maven Central details
4645Nexus Spring of Code—Link type unknownnsoc.inOther opportunitiesFree + paid tierQuickLaterLive, conditionalRegister as a maintainer and submit a real your tool open-source project with contributor-ready issues.Time-bound program; requires active mentoring, issue curation and production-quality tasks.2026-08-03Open Nexus Spring of Code submit page (new tab)Nexus Spring of Code details
4738FIDO Alliance Certified Products75Link type unknownfidoalliance.orgOther opportunitiesPaidQuickLaterLive, conditionalOnly if your tool builds a real commercial FIDO2 or passkey server, complete conformance and interoperability testing and submit it.Requires a commercial implementation and complete evidence; product certification is protocol-specific and higher assurance programs cost more.2026-08-05 official FIDO functional certification and feesOpen FIDO Alliance Certified Products submit page (new tab)FIDO Alliance Certified Products details
4838IAPP80Link type unknowniapp.orgOther opportunitiesPaidQuickLaterLive, conditionalConsider organizational membership if your tool actively participates in privacy or AI governance; complete the member directory profile.Genuine membership and industry participation only; not a low-cost SEO listing.2026-08-04Open IAPP submit page (new tab)IAPP details
4936Fabrik55Sometimes dofollowfabrik.ioOther opportunitiesPaidModerateLaterLive, conditionalPublish real your tool film, design, illustration or product case studies and connect them to the appropriate project pages.Strong creative-work fit only; no credit card for trial, but a lasting public portfolio requires a paid plan.2026-08-04Open Fabrik submit page (new tab)Fabrik details
5036Krop55Sometimes dofollowkrop.comOther opportunitiesPaidModerateLaterLive, conditionalBuild a real founder or your tool creative portfolio and link relevant case studies to the corresponding live tools.Designed for creative professionals; paid ongoing hosting and authentic portfolio work are required.2026-08-04Open Krop submit page (new tab)Krop details
5136Stan Store70Nofollowstan.storeOther opportunitiesPaidModerateLaterLive, conditionalUse only if your tool has a genuine creator offer, guide or service; complete the storefront and connect relevant site pages.Paid commercial fit required; do not open an empty store solely for a backlink.2026-08-04Open Stan Store submit page (new tab)Stan Store details

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.