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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.
Register your startup for a free profile if you operate in the Middle East, Africa, Pakistan or Turkey.
Create a founder profile with your deck and website to reach investors through their open database.
Submit only if EU-facing/company fit.
Create your truthful /founder profile or content page and add the website link where allowed.
If you are a Nordic startup, create a company profile and post roles to appear in their startup directory.
Submit a concise company profile only if your tool is a genuine UK startup or has a verifiable UK operating entity.
Submit company/startup profile.
Submit beta feature/tool for tester community.
Use the 'Submit your British startup' application only if your tool was genuinely founded in the UK.
Submit startup profile/story if form is active.
Submit startup story or profile if accepted.
Apply only if the operating company is genuinely incorporated in Latvia and fits the database's scalable-startup criteria.
Create startup profile if submissions open.
Use for directory list and submit if product directory exists.
Apply for a profile only if your tool is operated by a scalable high-tech startup incorporated and headquartered in Switzerland.
Submit curated early-stage company listing.
Submit your startup story with founding background, product and traction details.
Email funding or acquisition news with key facts and a press kit.
Submit your tool founder, website, stage, traction and product details for a permanent public profile.
Add startup if revenue/Stripe verification is appropriate.
Submit/pitch startup listing or story.
Submit your tool with homepage URL, privacy-first positioning, logo, screenshots and accurate pricing.
Create profile/comment or pitch startup article.
Submit startup for coverage/listing.
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.