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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.
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.
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.
Create a vendor portal account and request your tool under the closest eligible Gartner market category.
Publish a functional Eclipse plugin for your developer use case, then create a complete marketplace listing with official support and source links.
Build a production Webex integration or bot for deliberate sharing of your tool checklists or sanitized files, then submit its branded App Hub profile.
Submit your tool widgets plugin after /embed is live.
Build your redaction, accessibility, image, or privacy add-on and submit its public listing.
Build an OAuth Asana component that launches your audit or attaches a generated report, then submit complete company and support details.
Build a Canva app that sends chosen design assets to your accessibility, metadata, or privacy check and returns useful results inside Canva.
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.
Build an Intercom app for intentional conversation privacy scanning or sanitized export generation and include your clear install or learn-more URL.
Build and host a useful Jotform widget, register it with full documentation and send it for approval.
Build and test a Netlify extension, publish it publicly, then submit it for review and directory listing.
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.
Build a polished Unity editor utility or SDK for your relevant service and submit it with demos, documentation and support details.
Build your Vercel integration, distribute its page, gain adoption, then apply for Marketplace visibility.
Build a minimal-scope Zoom app that sends selected meeting content to your explicit privacy or redaction workflow and links its support, privacy, and documentation pages.
Build and document your Odoo module, register its repository, and upload a maintained free or paid listing.
Build and upload your useful IntelliJ-platform plugin with vendor, license, source, support and compatibility links.
Create a monday app that runs selected board exports through your privacy, accessibility, or reporting workflow and provides documented results.
Ship your real iOS or macOS app and add the product, support and privacy URLs in App Store Connect.
Publish your genuine Android app and use the website, support and privacy-policy fields for official links.
Create a Zendesk app or marketing-only integration for selected-ticket PII and scam checks with your tool support and pricing links.
Build a Zoho extension for document privacy, text cleanup, or data-export checks and submit its support, policy, guide, and website links.
Build your functional Joomla integration and submit a complete listing with an approved download route.
Submit a tested your app for compatible Amazon devices with complete descriptions, support links, privacy details and store assets.
Publish privacy/helper extension.
Publish your Android app through AppGallery Connect with official site, support and privacy URLs.
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.
Build and test your useful Visual Studio or Azure DevOps extension, then publish it with truthful homepage, repository and overview metadata.
Join the vendor program and package your tool as a legitimate one-click app or supported SaaS add-on with documentation and website links.
Create a scoped ServiceNow application that performs your real workflow for selected records or attachments and submit it through the Store.
Package your privacy, file-safety, or accessibility assistant for a supported Autodesk product.
Package your tool developer/security utilities as a compatible JetBrains plugin and upload it.
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.