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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.
Create your public workspace with sanitized API collections, examples, documentation, and a canonical homepage link on the publisher profile.
Build your add-on for Drive, Docs, Sheets, Gmail, or another Workspace product and publish it.
Register in Partner Center and publish your SaaS or Microsoft-integrated offer.
Publish your real Python SDK, CLI, or integration package and set Homepage, Documentation, Source, and Issues URLs in package metadata.
Build your production-ready Slack app for safe file/text utilities, then submit it from the app configuration page for Marketplace review.
Build your Forge-based integration for Jira or Confluence, create a Marketplace Partner profile, and submit a compliant public listing.
Build your real Shopify-facing utility, complete its public listing, test it on a development store, and submit it for App Store review.
Build your redaction, accessibility, image, or privacy add-on and submit its public listing.
Submit and verify one genuine your tool podcast feed for distribution on Amazon Music and Audible.
Build and verify your Discord app, then enable Discovery in the Developer Portal.
Publish your maintained CLI or server image with source, documentation, descriptions and canonical homepage links.
Build your useful privacy-preserving extension, submit a signed build, and provide honest homepage, permissions and privacy disclosures.
Join the partner platform and create your secure service with genuinely useful triggers, queries, and actions, pass endpoint tests and review, then publish helpful Applets for real user workflows.
Publish your clean benchmark or open dataset plus a reproducible notebook, with proper licensing and the canonical project URL in the data card.
Upload your original audio explainer and place relevant resource links naturally in the show description.
Create a useful quickstart for monitoring your real deployment, with instrumentation instructions, a working data source, dashboards, alerts, documentation, and a GitHub contribution.
Build a useful Splunk app or add-on for legitimate your tool security, audit, or operational data; package it with clear documentation, icons, screenshots, release metadata, and support details.
Host or claim your genuine show, verify the RSS email, and publish accurate episode notes with relevant HTTPS resources.
Build your Vercel integration, distribute its page, gain adoption, then apply for Marketplace visibility.
Submit your genuine podcast RSS feed in Podcasts Connect and include the official show website in valid metadata.
Build and upload your useful IntelliJ-platform plugin with vendor, license, source, support and compatibility links.
Publish a genuine browser or desktop your tool utility with screenshots, documentation and an official-site link.
Build your functional Joomla integration and submit a complete listing with an approved download route.
An eligible active researcher can publish genuine your tool studies, code or datasets and add the official website where appropriate.
If your tool maker genuinely offers related services, add the project as a detailed portfolio item with role, outcomes, visuals, and permitted project links.
Submit a tested your app for compatible Amazon devices with complete descriptions, support links, privacy details and store assets.
Submit your original -related technical paper and cite your tool only where it is genuinely the software or study subject.
Deposit your genuine benchmark, evaluation dataset or reproducibility bundle with project URL in the description/metadata.
Publish your Android app through AppGallery Connect with official site, support and privacy URLs.
Archive your authentic release, manual or research artifact with accurate metadata and official source URL.
Package your useful browser feature as an Opera extension and submit it for moderation.
Distribute your Android or Galaxy app and add its official website and support information.
Create a truthful author account and submit your substantive privacy, security or accessibility working paper with legitimate citations.
Build your Trello Power-Up, register it, sign the developer agreement, and submit it.
Build and test your useful Visual Studio or Azure DevOps extension, then publish it with truthful homepage, repository and overview metadata.
Publish genuine authored your tool research and add matching project or supporting-material URLs in the paper metadata.
Use an authentic maker profile to publish your portfolio piece containing original images, article, code, video, or audio samples.
Package your tool developer/security utilities as a compatible JetBrains plugin and upload it.
Run a genuine privacy, online-tools or accessibility community and reference your tool only where it supports the group or event.
Build a legitimate Ring-device privacy/security integration, register, test, certify and publish it.
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.