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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 to the Built In expert contributor network and pitch a technical or tech-career article grounded in your own experience.
Apply as a guest author with code samples, then write frontend or mobile tutorials the editors assign or approve.
Read the blog's submission guidelines, then send a detailed pitch for an in-depth SEO tutorial or case study with original data.
Apply to become a contributor with writing samples, then pitch practical, data-backed SEO or PPC pieces to the editors.
Use the contributor link in the site footer to apply, then pitch original search marketing analysis or tactics from your own work.
Find the contributor guidelines on the site and pitch a vendor-neutral piece on cloud-native, DevOps or developer tooling.
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.
Join the community and submit product management articles to the publication on Medium.
Apply to write for the site, then pick topics from their list and write focused Java, Spring or Kotlin tutorials.
Apply to the contributor program from the site and pitch practical advice for small and midsize business owners.
Apply to the publication's expert contributor network if you are a senior IT practitioner and propose a regular column topic.
Find the blog contribution guidelines on the site and pitch an actionable content strategy article backed by your experience.
Follow the submission page instructions and send an original data science, machine learning or AI tutorial.
Look for the article submission guidelines and send a finished draft on a practical B2B or digital marketing topic.
Apply through the contributor program (shared with Search Engine Land) and pitch an article on marketing operations, data or tooling.
Pitch an article on API design, security or strategy; the team also works with paid freelance writers.
Contact the editors with a pitch for a guest view on software development practices or industry trends.
Look for the guest posting guidelines on the blog and pitch an SEO or PPC topic with real examples.
Read the contributor guidelines linked from the site and pitch an original how-to for small business owners.
Review the writer guidelines and pitch a detailed, step-by-step social media tactic you have actually used.
Read the writer guidelines on the site and submit a well-researched data science or ML article with code or results.
Publish your design article on Medium, then submit it to the publication following their submission instructions.
Ask to join as a writer and submit frontend architecture, JavaScript or component-design articles.
Register and apply to become an author, then publish articles on customer experience, CRM or service.
Create an account and submit an article on big data, AI or emerging technology for editorial review.
Request writer access and submit coding tutorials or engineering write-ups through Medium.
Apply to write for the publication and submit startup or founder lessons through Medium.
Join the partner program to syndicate your existing Java or software development posts, or submit original articles.
Create a community account and submit an article or short insight on software testing for review.
Ask to become a writer and submit Android or Kotlin articles through Medium.
Apply to write for the publication and submit programming tutorials or developer stories through Medium.
Request to become a writer for the publication, then submit your UX or UI design articles through Medium.
If you have real security leadership experience, apply to the expert contributor network and propose recurring topics.
Find the contributor guidelines and pitch an educational article on data management, governance or analytics.
Pitch a first-person essay for the Voices section if you work in or build tools for education.
Pitch a guest commentary on technology, startups or the Pacific Northwest tech scene to the editors.
Contact the editors with a proposal for a technical security article or tutorial for the magazine or blog.
Read the guidelines for authors and submit a short pitch with a clear, evidence-backed management idea.
Use the contribute page to pitch an educational article on IoT technology, deployment or business use.
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.