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A maintained list of 1,854 legitimate backlink sites: directories, profile creation sites, guest posting sites, launch platforms, registries and marketplaces. 1,532 are free or have a free tier, 44 usually give a dofollow link, and 772 have an estimated DA of 70 or more. Every row shows authority, link type, cost and effort, and links straight to the submit page.
The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.
| # | Impact (sorted) | Site — sort by this | Est. DA — sort by this | Link | Domain | Type | Cost | Effort — sort by this | Priority | Status | What to prepare | Rules / caveat | Checked | Actions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 74 | Apple App Store | 100 | Nofollow | developer.apple.com | Marketplaces and app stores | Paid | Moderate | High | Live, conditional | Ship a real your tool iOS or macOS app and add the product, support and privacy URLs in App Store Connect. | Requires Apple Developer membership, native app functionality, privacy disclosures and successful App Review. | https://developer.apple.com/app-store/submitting/ | Open Apple App Store submit page (new tab)Apple App Store details |
| 2 | 74 | data.world | 75 | Nofollow | data.world | Communities and forums | Paid | Moderate | High | Verified live | Publish a documented synthetic privacy, redaction, accessibility, or scam-detection benchmark dataset. | Use an appropriate licence and rich metadata; never publish proprietary, copyrighted, sensitive, or personal data. | Official data.world dataset creation documentation checked 2026-08-07 | Open data.world submit page (new tab)data.world details |
| 3 | 74 | Freshworks Marketplace | 85 | Nofollow | freshworks.com | Marketplaces and app stores | Paid | Moderate | High | Verified live | Build a Freshdesk or Freshservice app that deliberately sends selected ticket text to an your tool PII or scam check and returns a transparent report. | A functional app must pass platform validation plus security, UX, code, documentation, privacy, and listing review. | Official Freshworks app submission documentation checked 2026-08-07 | Open Freshworks Marketplace submit page (new tab)Freshworks Marketplace details |
| 4 | 74 | Google Play | 100 | Nofollow | play.google.com | Marketplaces and app stores | Paid | Moderate | High | Live, conditional | Publish a genuine your tool Android app and use the website, support and privacy-policy fields for official links. | Developer verification, testing requirements, privacy/data-safety disclosures and Play policy compliance are required. | https://play.google.com/console/about/ | Open Google Play submit page (new tab)Google Play details |
| 5 | 74 | MetaFilter Projects | 85 | Nofollow | metafilter.com | Design galleries | Paid | Moderate | High | Verified live | After becoming a genuine member, submit your tool as a completed web project with a plain factual description in MetaFilter Projects only. | Self-links are prohibited elsewhere; use Projects only, respect posting cadence, and participate as a community member. | Official MetaFilter Projects, FAQ, and about pages checked 2026-08-07 | Open MetaFilter Projects submit page (new tab)MetaFilter Projects details |
| 6 | 71 | EIN Presswire | 75 | Nofollow | einpresswire.com | PR and source platforms | Paid | Involved | High | Verified live | Publish a genuinely newsworthy your tool launch, major privacy-tool release, original data report, or partnership with one contextual site link. | Account verification and editorial review apply; pickup, indexing, and link attributes vary, so this is not guaranteed earned coverage. | https://www.einpresswire.com/how-it-works | Open EIN Presswire submit page (new tab)EIN Presswire details |
| 7 | 71 | PR Underground | 55 | Nofollow | prunderground.com | PR and source platforms | Paid | Involved | High | Verified live | Publish a factual your tool milestone or research announcement with a clean landing-page URL and media assets. | Editorial approval is required; syndicated copies, indexing, and link attributes are outside AltFTool’s control. | https://www.prunderground.com/faq/ | Open PR Underground submit page (new tab)PR Underground details |
| 8 | 71 | Pressat | 55 | Nofollow | pressat.co.uk | PR and source platforms | Paid | Involved | High | Verified live | Create a UK-relevant your tool story or hosted newsroom announcement with useful assets and restrained links. | Only publish genuine news; permanent hosting and links do not guarantee coverage, ranking, or followed-link value. | https://pressat.co.uk/packages/ | Open Pressat submit page (new tab)Pressat details |
| 9 | 71 | PRWeb | 90 | Nofollow | prweb.com | PR and source platforms | Paid | Involved | High | Verified live | Use a major your tool product update, benchmark report, or partnership story with one clear media angle. | Editorial review applies; PRWeb explicitly does not guarantee search rank or media use of the release. | https://www.prweb.com/product/faq/ | Open PRWeb submit page (new tab)PRWeb details |
| 10 | 71 | ResponseSource | 55 | Nofollow | responsesource.com | PR and source platforms | Paid | Involved | High | Verified live | Monitor relevant journalist requests and answer only when your tool has direct expertise, data, or a credible founder quote. | Never force a product mention; replies must exactly match the request, and publication or backlink is entirely editorial. | https://www.responsesource.com/pr/pricing/ | Open ResponseSource submit page (new tab)ResponseSource details |
| 11 | 71 | Send2Press | 60 | Nofollow | send2press.com | PR and source platforms | Paid | Involved | High | Verified live | Distribute a concise news release about a significant your tool launch, study, award, or partnership. | Must be a real news release rather than an advertorial; editorial approval, pickup, and link treatment vary. | https://www.send2press.com/services/price-list.shtml | Open Send2Press submit page (new tab)Send2Press details |
| 12 | 58 | Chrome Web Store | 95 | Nofollow | chromewebstore.google.com | Marketplaces and app stores | Paid | Quick | Medium | Not submitted | Publish useful browser extension linking your tool. | Listing links often nofollow/ugc; value is distribution. | 2026-07-30 | Open Chrome Web Store submit page (new tab)Chrome Web Store details |
| 13 | 58 | Intigriti Public Programs | 65 | Nofollow | intigriti.com | Other opportunities | Paid | Quick | Medium | Verified live | Start privately, mature the process, then publish an your tool program indexed in Intigriti's public directory. | Define exact scope, rewards, exclusions, researcher rules, triage capacity, and remediation SLAs. | Official Intigriti bug-bounty program documentation checked 2026-08-07 | Open Intigriti Public Programs submit page (new tab)Intigriti Public Programs details |
| 14 | 56 | Adalo Component Marketplace | 70 | Nofollow | adalo.com | Marketplaces and app stores | Paid | Moderate | Medium | Verified live | Build and document a real Adalo component library for an your tool workflow and apply for marketplace publication. | Requires functional components, an eligible developer setup, documentation, review, ongoing support, and compliance with marketplace commercial rules. | Official Adalo component library publishing documentation checked 2026-08-07 | Open Adalo Component Marketplace submit page (new tab)Adalo Component Marketplace details |
| 15 | 56 | Alibaba Cloud Marketplace | 85 | Nofollow | alibabacloud.com | Marketplaces and app stores | Paid | Moderate | Medium | Verified live | Offer your tool as a documented SaaS or BYOL deployment for Alibaba Cloud customers with clear privacy controls and support. | A business account, enterprise verification, company documents and site, and vendor approval are required; Free or BYOL precedes paid Cosell setup. | Official Alibaba Cloud Marketplace vendor application documentation checked 2026-08-07 | Open Alibaba Cloud Marketplace submit page (new tab)Alibaba Cloud Marketplace details |
| 16 | 56 | Apple App Store | 100 | Nofollow | apple.com | Marketplaces and app stores | Paid | Moderate | Medium | Live, conditional | Build a useful your tool iOS or macOS app and submit complete support, privacy, accessibility and marketing metadata through App Store Connect. | Requires legal enrollment, current SDK, working app, privacy disclosures and App Review approval; listing is not for a web-wrapper backlink. | 2026-08-05 official Apple Developer Program and App Store submission pages | Open Apple App Store submit page (new tab)Apple App Store details |
| 17 | 56 | BigCommerce App Marketplace | 85 | Nofollow | bigcommerce.com | Marketplaces and app stores | Paid | Moderate | Medium | Not submitted | Build an OAuth app that audits merchant exports or product assets for privacy issues, then submit tested listing assets through the Developer Portal. | Requires a Partner ID, valid OAuth scopes, production testing, review, and listing requirements; paid placement or dofollow links are not promised. | 2026-08-03 | Open BigCommerce App Marketplace submit page (new tab)BigCommerce App Marketplace details |
| 18 | 56 | Contently | 70 | Nofollow | contently.com | Publishing platforms | Paid | Moderate | Medium | Verified live | Use 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. | For authentic individual freelancers, not brand shells; approval needs portfolio depth, and public portfolio pages are intentionally noindex. | Official Contently portfolio visibility and setup guidance checked 2026-08-07 | Open Contently submit page (new tab)Contently details |
| 19 | 56 | HubSpot App Marketplace | 95 | Nofollow | hubspot.com | Marketplaces and app stores | Paid | Moderate | Medium | Verified live | Build a public OAuth your tool integration, gain qualifying installs, then submit setup docs plus support, privacy, and terms URLs. | Requires a unique public app, Partner Agreement, at least three active unaffiliated installs in the prior 30 days, complete legal material, and review. | Official HubSpot App Marketplace listing documentation checked 2026-08-07 | Open HubSpot App Marketplace submit page (new tab)HubSpot App Marketplace details |
| 20 | 56 | Lemon Squeezy | 70 | Nofollow | lemonsqueezy.com | Other opportunities | Paid | Moderate | Medium | Live, conditional | Create 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. | 2026-08-05 | Open Lemon Squeezy submit page (new tab)Lemon Squeezy details |
| 21 | 56 | Samsung Galaxy Store | 95 | Nofollow | samsung.com | Marketplaces and app stores | Paid | Moderate | Medium | Live, conditional | Publish a genuine your tool Android app with accurate support/privacy URLs, data-safety declarations, assets and compatible binary. | Samsung account, Seller Portal registration, commercial seller status and review are required even for distribution; metadata must match actual data handling. | 2026-08-05 official Samsung Galaxy Store developer guides | Open Samsung Galaxy Store submit page (new tab)Samsung Galaxy Store details |
| 22 | 53 | ACCESS Newswire | 55 | Nofollow | accessnewswire.com | PR and source platforms | Paid | Involved | Medium | Verified live | Distribute a substantial your tool launch or privacy/security research story with media, founder quote, and one canonical URL. | Editorial acceptance applies; unlimited hyperlinks are offered, but pickup and link treatment remain publisher-controlled. | https://www.accessnewswire.com/submit-a-press-release | Open ACCESS Newswire submit page (new tab)ACCESS Newswire details |
| 23 | 53 | Business Wire | 90 | Nofollow | businesswire.com | PR and source platforms | Paid | Involved | Medium | Verified live | Reserve for major corporate news, partnerships, funding, or independently useful your tool research. | Account setup and editorial review are required; distribution is not an editorial endorsement and links may be qualified. | https://secure.businesswire.com/pricing | Open Business Wire submit page (new tab)Business Wire details |
| 24 | 53 | CisionOne | 85 | Nofollow | cision.com | PR and source platforms | Paid | Involved | Medium | Verified live | Build a tightly relevant press list and pitch an original your tool report, launch, or expert source contribution. | Use only permission-aware, personalized outreach; software access never guarantees coverage or a link. | https://www.cision.com/journalist-outreach/ | Open CisionOne submit page (new tab)CisionOne details |
| 25 | 53 | eReleases | 60 | Nofollow | ereleases.com | PR and source platforms | Paid | Involved | Medium | Verified live | Use its PR Newswire-backed packages only for a strong national-interest your tool story with clear evidence. | No coverage or SEO outcome is guaranteed; avoid keyword-stuffed or purely promotional copy. | https://order.ereleases.com/ | Open eReleases submit page (new tab)eReleases details |
| 26 | 53 | GlobeNewswire | 90 | Nofollow | globenewswire.com | PR and source platforms | Paid | Involved | Medium | Verified live | Use for a major release or original your tool trend report that merits broad international distribution. | Submit only verifiable corporate news; publisher pickups and link attributes vary by outlet. | https://www.globenewswire.com/en/press-release-distribution-services | Open GlobeNewswire submit page (new tab)GlobeNewswire details |
| 27 | 53 | Muck Rack | 85 | Nofollow | muckrack.com | PR and source platforms | Paid | Involved | Medium | Verified live | Identify reporters actively covering privacy, security, developer tools, and consumer utilities; send individualized evidence-led pitches. | No direct listing backlink is promised; respect journalist preferences and avoid unsolicited bulk outreach. | https://muckrack.com/pricing | Open Muck Rack submit page (new tab)Muck Rack details |
| 28 | 53 | Newswire | 80 | Nofollow | newswire.com | PR and source platforms | Paid | Involved | Medium | Verified live | Use a focused product or research announcement and target the most relevant technology or cybersecurity distribution. | Release must be factual and newsworthy; syndication does not guarantee journalist coverage, ranking, or a followed link. | https://www.newswire.com/our_prices | Open Newswire submit page (new tab)Newswire details |
| 29 | 53 | PR Fire | 45 | Nofollow | prfire.co.uk | PR and source platforms | Paid | Involved | Medium | Verified live | Use its distribution-only option for ready copy or writing package for a strong UK-facing your tool announcement. | Content must pass review; distribution and syndication are paid exposure, not guaranteed independent editorial links. | https://dashboard.prfire.co.uk/press_releases/build/plan | Open PR Fire submit page (new tab)PR Fire details |
| 30 | 53 | PR Leap | 55 | Nofollow | prleap.com | PR and source platforms | Paid | Involved | Medium | Verified live | Submit a newsworthy your tool release and target its newspaper, radio, television, and online media network. | Distribution to outlets is not the same as earned coverage; verify current package scope before purchase. | https://www.prleap.com/features | Open PR Leap submit page (new tab)PR Leap details |
| 31 | 53 | PR Newswire | 95 | Nofollow | prnewswire.com | PR and source platforms | Paid | Involved | Medium | Verified live | Pitch a high-signal announcement to relevant technology, AI, privacy, or India media lists through its distribution network. | Membership and distribution charges may apply; placement, pickup, and backlinks are never guaranteed. | https://www.prnewswire.com/pr-distribution-and-placement/ | Open PR Newswire submit page (new tab)PR Newswire details |
| 32 | 53 | TMX Newsfile | 65 | Nofollow | newsfilecorp.com | PR and source platforms | Paid | Involved | Medium | Verified live | Submit a polished technology or company announcement and select only the relevant distribution circuit. | Editorial rules apply; a wire release is owned media distribution, not guaranteed independent coverage. | https://www2.newsfilecorp.com/ | Open TMX Newsfile submit page (new tab)TMX Newsfile details |
| 33 | 38 | Pinboard | 75 | Nofollow | pinboard.in | Social channels | Paid | Quick | Later | Needs checking | Save useful pages publicly, including your own, with honest tags. | Small one-time or yearly fee; bulk self-promotion stands out and is pointless. | Added 2026-11-01 | Open Pinboard submit page (new tab)Pinboard details |
| 34 | 36 | DealMirror | 50 | Nofollow | dealmirror.com | Marketplaces and app stores | Paid | Moderate | Later | Needs checking | Apply to run a lifetime or discount deal for your SaaS. | Revenue share on sales; product must be ready for support load. | Added 2026-11-01 | Open DealMirror submit page (new tab)DealMirror details |
| 35 | 36 | Flippa | 80 | Nofollow | flippa.com | Marketplaces and app stores | Paid | Moderate | Later | Needs checking | List a website, app or online business for sale with verified data. | Listing fees apply and claims are checked. | Added 2026-11-01 | Open Flippa submit page (new tab)Flippa details |
| 36 | 36 | StackSocial | 75 | Nofollow | stacksocial.com | Marketplaces and app stores | Paid | Moderate | Later | Needs checking | Apply as a vendor to offer a discounted deal on your software. | Selective partner program; revenue split applies. | Added 2026-11-01 | Open StackSocial submit page (new tab)StackSocial details |
| 37 | 36 | Stan Store | 70 | Nofollow | stan.store | Other opportunities | Paid | Moderate | Later | Live, conditional | Use 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. | 2026-08-04 | Open Stan Store submit page (new tab)Stan Store details |
| 38 | 33 | Alibaba | 95 | Nofollow | alibaba.com | Business directories | Paid | Involved | Later | Needs checking | Only worth it if you sell physical goods wholesale; apply for a supplier membership. | Supplier accounts require business verification and a paid plan in most regions. | Added 2026-11-01 | Open Alibaba submit page (new tab)Alibaba details |
| 39 | 33 | Crowd Supply | 70 | Nofollow | crowdsupply.com | Marketplaces and app stores | Paid | Involved | Later | Needs checking | Pitch your open hardware product for a campaign and ongoing store listing. | Curated; they accept a small number of projects. | Added 2026-11-01 | Open Crowd Supply submit page (new tab)Crowd Supply details |
| 40 | 33 | Indiegogo | 90 | Nofollow | indiegogo.com | Launch platforms | Paid | Involved | Later | Needs checking | Run a crowdfunding or pre-order campaign and link your site from the campaign page. | Platform fees apply; campaigns are reviewed for compliance. | Added 2026-11-01 | Open Indiegogo submit page (new tab)Indiegogo details |
| 41 | 33 | Kickstarter | 95 | Nofollow | kickstarter.com | Launch platforms | Paid | Involved | Later | Needs checking | Launch a campaign for a hardware, creative or game project and link your site from the creator profile. | Projects must create something tangible to share; fees apply on funded campaigns. | Added 2026-11-01 | Open Kickstarter submit page (new tab)Kickstarter details |
Four steps that work for a new site, a SaaS or a side project. No paid link packages, nothing that risks a penalty.
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.
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.
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.
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
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.
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.