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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.
Apply only if the founder or team member has real design/engineering leadership experience and intends to provide genuine mentoring, then add an accurate personal website/profile reference.
Submit your tool (or its blog/feed where required) under productivity, privacy or developer tools.
Submit a tested your app for compatible Amazon devices with complete descriptions, support links, privacy details and store assets.
Answer Android questions properly and add your site to your profile.
Publish an original UI/UX visual case study showing your tool interaction design, accessibility states, and design process, with a contextual project URL.
Submit your original -related technical paper and cite your tool only where it is genuinely the software or study subject.
Answer Mac and iPhone questions in full, linking your own page only when it adds detail the answer cannot hold.
Answer real end-user software or privacy questions in depth and reference your specific page only when it materially completes the answer.
Apply as a designer and publish an original template, icon pack or printable that genuinely complements your workflow.
Apply with a strong portfolio and sell your original -compatible template or design kit, using permitted shop branding and product documentation.
Participate as a real developer with original lessons and honest build stories; reference your tool only if a specific discussion genuinely calls for the working example.
Use a real developer profile and contribute tested solutions on Discourse integrations, accessibility, or privacy only when the team has genuine implementation experience.
Build your Ecwid app, propose it, sign the partner agreement, and submit it for review with website and support links.
Contact them to have your Windows or Mac software added to the catalogue.
Publish privacy/helper extension.
Submit a mature graphical Linux your app with verified metadata, screenshots, homepage and source links.
Publish a substantive Glide template for privacy-safe records, evidence organization, or accessibility audits and link its your tool documentation where permitted.
Create a substantive public tutorial or implementation note that uses your tool and includes a contextual source/product link.
Publish your Android app through AppGallery Connect with official site, support and privacy URLs.
Apply as the actual designer and publish a manually designed, consistent privacy or accessibility icon pack with an accurate public author profile.
Archive your authentic release, manual or research artifact with accurate metadata and official source URL.
Request writer access for the publication and submit engineering, cloud or DevOps articles via Medium.
Apply to become a writer for the In Plain English publications and submit clear programming tutorials.
Create a focused educational demo for one your tool technique and share the public bin from an authentic profile.
Create your truthful /founder profile or content page and add the website link where allowed.
Add your Mac app and keep version updates current so users get notified.
Create your genuine study, reproducibility project or benchmark workspace with project links and public materials.
Package your useful browser feature as an Opera extension and submit it for moderation.
Create a public reproducibility project for your tool research, datasets, test methods, or privacy benchmarks and link the genuine project/site.
Create a public searchable board that teaches a privacy workflow and links to supporting standards, guides, and relevant your tool utilities.
Create a structured collection about privacy-preserving web utilities and mix selected your tool pages with respected references.
Build a working mini-project showing your browser-side feature and publish its indexed share page with useful documentation.
Join the community and submit product management articles to the publication on Medium.
Apply as an author and publish original privacy, security or accessibility articles with contextual your tool references.
Post to relevant subs with context: SideProject, SaaS, webdev.
Distribute your Android or Galaxy app and add its official website and support information.
Upload your original research-backed guide and reference relevant tools naturally in the document.
Create your truthful /founder profile or content page and add the website link where allowed.
Join with a transparent identity and answer relevant IT/privacy questions from direct experience; mention your resource only when it materially completes a specific answer.
A good fit for IT and admin tools: answer IT pro questions and fill in your vendor or personal profile.
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.