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.
The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.
| # | Impact (sorted) | Site — sort by this | Est. DA — sort by this | Link | Domain | Type | Cost | Effort — sort by this | Priority | Status | What to prepare | Rules / caveat | Checked | Actions |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 74 | CSS Weekly | 45 | Sometimes dofollow | css-weekly.com | Design galleries | Paid | Moderate | High | Verified live | Sponsor an your tool frontend, accessibility, CSS, or developer utility with a useful demo and audience-specific copy. | Official page advertises a permanent dofollow link, but paid links should be marked rel=sponsored for search-policy compliance; prioritize audience value. | https://css-weekly.com/advertise | Open CSS Weekly submit page (new tab)CSS Weekly details |
| 2 | 71 | Codrops | 75 | Sometimes dofollow | tympanus.net | Design galleries | Paid | Involved | High | Verified live | 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. | Codrops seeks fresh ideas and high-quality work for web professionals; the editorial and visual craft bar is high. Use a real author identity and pitch original teaching value, not a promotional guest post. | 2026-08-03 | Open Codrops submit page (new tab)Codrops details |
| 3 | 56 | Changelog Media | 70 | Sometimes dofollow | changelog.com | Publishing platforms | Paid | Moderate | Medium | Verified live | Run a clearly disclosed campaign for your tool’s developer and security tools across relevant Changelog podcasts or newsletters. | Free news submissions explicitly reject commercial products and services, so use sponsorship; treat links as ads, not PageRank. | https://changelog.com/news/submit | Open Changelog Media submit page (new tab)Changelog Media details |
| 4 | 56 | Format | 75 | Sometimes dofollow | format.com | Other opportunities | Paid | Moderate | Medium | Not submitted | Create a founder or product-design portfolio with an original your tool case study and add the canonical site as an external menu link. | This is a paid portfolio platform; the case study should demonstrate real work and should not exist only to manufacture a link. | 2026-08-03 | Open Format submit page (new tab)Format details |
| 5 | 56 | Toolify | 55 | Sometimes dofollow | toolify.ai | AI tool directories | Paid | Moderate | Medium | Not submitted | Submit AI tools/features with multilingual description. | Claims dofollow/backlink; check cost before paying. | 2026-07-30 | Open Toolify submit page (new tab)Toolify details |
| 6 | 53 | SitePoint | 85 | Sometimes dofollow | sitepoint.com | Guest posting sites | Paid | Involved | Medium | Verified live | Submit a deep technical tutorial showing a generalizable web, security, or privacy technique used while building your tool. | Must be original and educational, not promotional; current rules require human-authored work with less than 50% AI involvement. | https://www.sitepoint.com/write-for-us/ | Open SitePoint submit page (new tab)SitePoint details |
| 7 | 38 | Cloud Security Alliance | 80 | Sometimes dofollow | cloudsecurityalliance.org | Startup directories | Paid | Quick | Later | Live, conditional | Consider only after your tool becomes a substantive cloud or AI security vendor and can participate in CSA programs. | Commercial membership, not a backlink purchase; directory placement does not equal certification or product endorsement. | 2026-08-05 official Startup Membership Agreement | Open Cloud Security Alliance submit page (new tab)Cloud Security Alliance details |
| 8 | 38 | Microns | 40 | Sometimes dofollow | microns.io | Marketplaces and app stores | Paid | Quick | Later | Needs checking | List a small online business or side project for sale. | Paid listing fee; small projects fit best. | Added 2026-11-01 | Open Microns submit page (new tab)Microns details |
| 9 | 38 | There's An AI For That | 60 | Sometimes dofollow | theresanaiforthat.com | AI tool directories | Paid | Quick | Later | Not submitted | Submit only AI-specific your tool modules. | Paid only; conflicts if platform not AI-first. | 2026-07-30 | Open There's An AI For That submit page (new tab)There's An AI For That details |
| 10 | 36 | Awwwards | 85 | Sometimes dofollow | awwwards.com | Design galleries | Paid | Moderate | Later | Needs checking | Submit your tool web design if premium/polished. | High authority; paid and design quality gate. | 2026-07-30 | Open Awwwards submit page (new tab)Awwwards details |
| 11 | 36 | Captivate | 60 | Sometimes dofollow | captivate.fm | Publishing platforms | Paid | Moderate | Later | Needs checking | Host a podcast with its included website and add links to your site in episode notes. | It is a paid service with a free trial. | Added 2026-11-01 | Open Captivate submit page (new tab)Captivate details |
| 12 | 36 | CSS Design Awards | 70 | Sometimes dofollow | cssdesignawards.com | Design galleries | Paid | Moderate | Later | Needs checking | Submit site for CSS/design award. | Only after homepage/tool UX polished. | 2026-07-30 | Open CSS Design Awards submit page (new tab)CSS Design Awards details |
| 13 | 36 | Fabrik | 55 | Sometimes dofollow | fabrik.io | Other opportunities | Paid | Moderate | Later | Live, conditional | Publish real your tool film, design, illustration or product case studies and connect them to the appropriate project pages. | Strong creative-work fit only; no credit card for trial, but a lasting public portfolio requires a paid plan. | 2026-08-04 | Open Fabrik submit page (new tab)Fabrik details |
| 14 | 36 | Krop | 55 | Sometimes dofollow | krop.com | Other opportunities | Paid | Moderate | Later | Live, conditional | Build a real founder or your tool creative portfolio and link relevant case studies to the corresponding live tools. | Designed for creative professionals; paid ongoing hosting and authentic portfolio work are required. | 2026-08-04 | Open Krop submit page (new tab)Krop details |
| 15 | 36 | Libsyn | 80 | Sometimes dofollow | libsyn.com | Publishing platforms | Paid | Moderate | Later | Needs checking | Host your podcast and use the included show site and notes to link to your website. | It is a paid hosting service. | Added 2026-11-01 | Open Libsyn submit page (new tab)Libsyn details |
| 16 | 36 | Mynewsdesk | 75 | Sometimes dofollow | mynewsdesk.com | PR and source platforms | Paid | Moderate | Later | Needs checking | Publish press releases, images and news in a hosted newsroom that links to your site. | It is a paid service and releases must be genuine news. | Added 2026-11-01 | Open Mynewsdesk submit page (new tab)Mynewsdesk details |
| 17 | 36 | pr.co | 60 | Sometimes dofollow | pr.co | PR and source platforms | Paid | Moderate | Later | Needs checking | Host a branded newsroom with your press releases and media kit, linking back to your site. | It is paid; releases should be real announcements. | Added 2026-11-01 | Open pr.co submit page (new tab)pr.co details |
| 18 | 36 | Prowly | 65 | Sometimes dofollow | prowly.com | PR and source platforms | Paid | Moderate | Later | Needs checking | Use the paid PR tool to host a public newsroom and send releases to relevant journalists. | Mass irrelevant pitching harms deliverability and breaks the terms. | Added 2026-11-01 | Open Prowly submit page (new tab)Prowly details |
| 19 | 36 | ReleaseWire | 65 | Sometimes dofollow | releasewire.com | PR and source platforms | Paid | Moderate | Later | Needs checking | Publish a newsworthy announcement through the paid distribution service with a link to your site. | Releases are reviewed for news value and links may be nofollow on syndication partners. | Added 2026-11-01 | Open ReleaseWire submit page (new tab)ReleaseWire details |
| 20 | 36 | Transistor | 65 | Sometimes dofollow | transistor.fm | Publishing platforms | Paid | Moderate | Later | Needs checking | Host a podcast and use the built-in website and show notes to link to your product. | It is a paid service with a free trial. | Added 2026-11-01 | Open Transistor submit page (new tab)Transistor details |
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.