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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.
Post only a self-contained initial announcement of a substantial open-source defensive tool, a major update, or a properly coordinated OSS vulnerability disclosure.
Contact PeerSpot with your tool enterprise use cases and real-customer evidence to request inclusion.
Submit your valid public podcast feed and keep website and episode-link metadata accurate.
Claim your genuine show, verify ownership, and complete its official website and creator details.
Publish your reproducible testing, privacy-analysis or accessibility-evaluation method and cite relevant project resources.
Publish your maintained open-source service template with safe variables, health checks, documentation and a demo.
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.
Publish your real OpenAPI definition publicly with an accurate description and external documentation URL.
Build your Vercel integration, distribute its page, gain adoption, then apply for Marketplace visibility.
Build your accounting/privacy integration, validate it with customers, certify and publish it in the Xero App Store.
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 your real webinar, demo or workshop with a contextual canonical link in its event details.
Apply using your India-registered company/startup and provide the required entity and revenue documents.
Build a tested Workato connector for legitimate your tool triggers and actions, add clear support and usage documentation, publish it to the community library, and provide simple successful community recipes.
Email your genuinely newsworthy podcast or audio-tool launch story with concise facts, human artwork, and release timing.
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.
Join as a small organization if your tool genuinely implements or contributes to OpenID, OAuth or related identity standards.
Offer a standalone, vendor-neutral security tool or documentation project with open governance and a committed leader, then submit the official new-project request.
Build your working automation Actor, publish it to the Store and include contextual project/documentation links.
If your property genuinely uses Astro, use the Submit site action to propose it for the public showcase.
Publish a genuine iOS or macOS your tool SDK and set homepage/source URLs in its podspec.
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.
Search for your tool; submit an accurate profile update or request research coverage with authoritative company data and website.
Build your tool actions as a Raycast extension and publish through the official GitHub PR workflow.
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.
Build and openly maintain a Backstage plugin that gives platform teams your real workflow, then announce it through the community-plugins process and meet directory metadata requirements.
If your tool documentation genuinely runs on Docusaurus, add the polished docs site through the official showcase discussion.
Submit a mature graphical Linux your app with verified metadata, screenshots, homepage and source links.
Create a useful Grav privacy or security plugin and request inclusion through the official repository issue process.
Create a substantive public tutorial or implementation note that uses your tool and includes a contextual source/product link.
Deposit your genuine benchmark, evaluation dataset or reproducibility bundle with project URL in the description/metadata.
After releasing your real CLI or native app, submit a tested formula or cask with its canonical homepage.
Publish your Android app through AppGallery Connect with official site, support and privacy URLs.
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.