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.
List your stable API with OpenAPI definitions, clear endpoints, health checks and its official website in the permitted listing field.
Build your Forge-based integration for Jira or Confluence, create a Marketplace Partner profile, and submit a compliant public listing.
Publish a real, documented your tool API, complete its Hub listing with accurate website and terms URLs, and optionally offer a free usage tier.
Build a pipeline plugin that runs your tool checks on selected artifacts and posts configurable pass, warn, or fail annotations.
Build a DokuWiki privacy, redaction, accessibility, or secure-export plugin, publish its code and create the canonical plugin page used by the extension directory.
Publish a functional Eclipse plugin for your developer use case, then create a complete marketplace listing with official support and source links.
Create a functional Framer plugin for accessibility, metadata, responsive-content, or privacy checks and publish it with your tool documentation.
Register an authorized Indian business seller and list only real eligible your tool services with accurate catalogue details.
Create a functional Hexo plugin for your relevant capability, publish the package, then add its record to Hexo's official plugin data repository.
Build a unique and useful Obsidian plugin, create valid releases and submit it to the community plugin directory.
Add native OpenTelemetry support or build your useful instrumentation or utility, then submit its registry metadata and documentation links.
Build your tool triggers/actions, submit them to the public registry by GitHub PR, and address review feedback.
Build a Pipedrive OAuth integration for safe note export, duplicate cleanup, or PII auditing and submit your unique listing.
Build a public RingCentral integration around call-note privacy or safe file sharing and complete the profile with your tool documentation, privacy, and support links.
Build a TYPO3 backend extension for selected content or media PII, metadata, and accessibility checks.
Create your Umbraco integration package and point its NuGet project URL plus documentation to your tool.
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 a useful Coda Pack that connects to your tool functionality and publish it to the Gallery with documentation and support links.
Build and document your Odoo module, register its repository, and upload a maintained free or paid listing.
Build a Sketch plugin for accessibility, metadata cleanup, or sensitive-placeholder detection.
Build a destination or function that sends only explicitly selected and sanitized events to your tool for PII or schema checks.
Build your working automation Actor, publish it to the Store and include contextual project/documentation links.
Build a functional Jellyfin privacy, metadata-cleanup, or local-safety plugin with a maintained manifest repository, then propose its repository and documentation entry.
Build your functional Joomla integration and submit a complete listing with an approved download route.
Build a stable open-source RabbitMQ plugin for your legitimate security/privacy workflow and ask the RabbitMQ team to list it.
Build your tool actions as a Raycast extension and publish through the official GitHub PR workflow.
Build and upload a genuinely useful Vim privacy or secret-checking plugin with your tool documentation and a relevant project link.
Join the vendor program and package your tool as a legitimate one-click app or supported SaaS add-on with documentation and website links.
Build a production-ready PrestaShop module or theme and submit its technical package, product page and support links.
Create a scoped ServiceNow application that performs your real workflow for selected records or attachments and submit it through the Store.
Publish useful browser extension linking your tool.
Package your commercetools Connector and request certification and public Marketplace listing.
Build a working Miro app for board accessibility, privacy, or export auditing; establish real users and demand before applying through the partner route.
Upload your Android app through their developer console.
If your game is built with Construct, publish it to the Construct Arcade from your account so it gets a public game page.
Build table functions that import, normalize and query your tool report JSON or NDJSON with typed findings, then submit the extension descriptor for central build and distribution.
Publish design asset or privacy checklist template.
Sign in with a Y8 account and upload your HTML5 or WebGL game; the game page shows your developer profile.
Build Make app/integration for workflows.
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.