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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.
Submit a 600–1,000 word practitioner article on secure CI/CD, dependency privacy, or local-first developer tooling based on real engineering experience.
Have a named senior practitioner apply with evidence-backed lessons from building local-first privacy tooling, secure developer utilities, or responsible AI-adjacent systems.
Pitch a timely, deeply researched Linux or open-source security story with primary sources and explain the author's direct expertise before drafting.
Pitch a vendor-neutral tutorial on building privacy-preserving local web tools or reviewing your genuinely open-source component, then wait for topic and outline approval.
Pitch a reproducible tutorial about CI checks for client-side privacy, dependency security, or accessible web tools, with your tool only as a genuine example.
Apply with a named security practitioner, writing sample, biography, and a concrete proposal based on defensible privacy or scam-protection research.
Pitch a crafted, original interactive tutorial or demo about client-side privacy visualization, inclusive motion, or accessible creative tooling, with source and a working demo.
Suggest your JavaScript or TypeScript project through their GitHub issue process.
Submit your site if it has a polished dark design.
List your registered business as an eligible IT supplier and complete its public company profile and website field.
Build your functional Joomla integration and submit a complete listing with an approved download route.
Join the writer community and publish data science or ML articles, which go through a light editorial review.
If you blog about PostgreSQL, register your feed so your Postgres posts are syndicated on the planet.
Ask to have your Python-tagged blog feed added so your Python posts appear on the aggregator.
Submit your AI-powered app with screenshots and a link to a working demo.
Upload a guide, report or catalog as a public publication and add your website to the profile and description.
Create your truthful /founder profile or content page and add the website link where allowed.
Claim your company page and invite real customers to leave reviews.
List software in relevant category.
Add your startup and post a real opening so your company page with website link goes live.
Submit your AI tool to the directory run alongside a large AI newsletter.
Create your truthful /founder profile or content page and add the website link where allowed.
Create your truthful /founder profile or content page and add the website link where allowed.
Apply to write for the site, then pick topics from their list and write focused Java, Spring or Kotlin tutorials.
Submit product for startup discovery listing.
Apply to the contributor program from the site and pitch practical advice for small and midsize business owners.
Launch your real educational podcast, complete its public site, and cite relevant tools and sources in useful show notes.
Build a substantive product-design case study covering your tool system, flows, and outcomes, then add the canonical site through supported navigation or project links.
Create an authentic your tool or founder design portfolio with substantive case studies and contextual links to shipped tools.
Apply to the publication's expert contributor network if you are a senior IT practitioner and propose a regular column topic.
Propose a vendor-neutral, reproducible cloud-native security tutorial or case study, then write it in Markdown and submit the draft by pull request after community discussion.
Find the blog contribution guidelines on the site and pitch an actionable content strategy article backed by your experience.
Create your complete product case study and add the canonical URL naturally within project text or a linked image.
Pitch a founder interview about how you built and grew your product, with honest numbers and lessons.
Publish your original privacy or accessibility guide and add contextual clickable links within the document.
Create company/software listing.
Sign up as a source and answer reporter queries in your area with short, quotable expert responses.
Post technical/product story with canonical link.
Create a founder portfolio with original your tool launch notes or product case studies and use an external-link page for the canonical website.
Follow the submission page instructions and send an original data science, machine learning or AI tutorial.
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.