AltF Backlinks

Free backlink sites list: 1,964 places to get a link

A maintained list of 1,964 legitimate backlink sites: directories, profile creation sites, guest posting sites, launch platforms, registries and marketplaces. 1,628 are free or have a free tier, 44 usually give a dofollow link, and 781 have an estimated DA of 70 or more. Every row shows authority, link type, cost and effort, and links straight to the submit page.

1,964
Opportunities
1,628
Free or freemium
781
Est. DA 70+
208
Quick wins
All filters2
Filtered byCommunities and forums— remove this filterVerified live— remove this filterClear all

1–11 of 11 opportunities

The table is wider than the screen — swipe it sideways for cost, effort and the preparation notes.

Submission opportunities with impact score, cost, effort, priority, status and preparation notes. Scroll horizontally for all columns.
#Impact (sorted)Site — sort by thisEst. DA — sort by thisLinkDomainTypeCostEffort — sort by thisPriorityStatusWhat to prepareRules / caveatCheckedActions
1100ACT Rules Community45Dofollowact-rules.github.ioCommunities and forumsFreeQuickDo firstVerified liveImplement applicable ACT Rules, execute official test cases, publish the implementation report, join ACT-R CG, and propose your tool as an implementation.Requires genuine rule implementation and reproducible results; inaccurate or partial claims will not qualify.Official implementation instructions checked 2026-08-05Open ACT Rules Community submit page (new tab)ACT Rules Community details
284Cloudron Community Apps60Link type unknowncloudron.ioCommunities and forumsFreeModerateHighVerified livePackage a secure self-hosted your app for Cloudron, publish its version catalog and documentation, then request inclusion in Community Apps.Must support Cloudron's read-only filesystem, backups, updates, health checks, manifest fields, and publicly hosted version catalog; community apps are not reviewed by Cloudron.Official Cloudron packaging and publishing documentation checked 2026-08-05Open Cloudron Community Apps submit page (new tab)Cloudron Community Apps details
384ethical.net45Link type unknownethical.netCommunities and forumsFreeModerateHighVerified liveSubmit your tool only with concrete evidence of privacy-first operation, local processing, transparent data practices, accessibility, and useful free resources.Disclose the relationship, provide evidence, avoid unsupported ethical claims or promotional link drops, and let the community evaluate it.Official Ethical.net directory suggestion thread checked 2026-08-07Open ethical.net submit page (new tab)ethical.net details
484Hackaday.io85Nofollowhackaday.ioCommunities and forumsFreeModerateHighVerified liveDocument a real hardware, privacy or security build that uses your tool, including schematics, progress logs and a natural official-project link.Projects should document genuine work and follow community conduct; advertising-only pages and repetitive link posts are inappropriate.2026-08-03Open Hackaday.io submit page (new tab)Hackaday.io details
584Streamlit Community Cloud75Link type unknownstreamlit.ioCommunities and forumsFreeModerateHighVerified liveDeploy an educational your tool data or AI demo from a public GitHub repository and include a useful link to the full tool or documentation.The app must work independently, protect secrets and comply with resource limits; do not create a doorway page solely for a backlink.2026-08-03Open Streamlit Community Cloud submit page (new tab)Streamlit Community Cloud details
684Windmill Hub55Link type unknownwindmill.devCommunities and forumsFreeModerateHighVerified livePublish a reusable your tool-backed privacy or security script, flow, app, or resource type for the public Windmill Hub.Submission must be reusable and documented; Windmill team reviews and approves community Hub entries.2026-08-05Open Windmill Hub submit page (new tab)Windmill Hub details
781Instructables90Nofollowinstructables.comCommunities and forumsFreeInvolvedHighVerified livePublish a detailed build or usage tutorial around an original your tool workflow, with the relevant tool link only where it helps readers.Commercial projects are acceptable only when the article is genuinely instructional; include original steps, images, and results.https://www.instructables.com/create/Open Instructables submit page (new tab)Instructables details
874data.world75Nofollowdata.worldCommunities and forumsPaidModerateHighVerified livePublish a documented synthetic privacy, redaction, accessibility, or scam-detection benchmark dataset.Use an appropriate licence and rich metadata; never publish proprietary, copyrighted, sensitive, or personal data.Official data.world dataset creation documentation checked 2026-08-07Open data.world submit page (new tab)data.world details
966TrueNAS Apps Market60Link type unknownapps.truenas.comCommunities and forumsFreeModerateMediumVerified liveCreate a secure Docker Compose-based your tool self-hosted deployment, test it against TrueNAS app tooling and submit it to the official community catalog with useful documentation/resources.Requires a real containerized app, local validation, maintained versions and clear storage/network/security settings; community apps are independently supported and contributions go through repository review.2026-08-05Open TrueNAS Apps Market submit page (new tab)TrueNAS Apps Market details
1063Hackster.io80Nofollowhackster.ioCommunities and forumsFreeInvolvedMediumVerified livePublish a detailed hardware or IoT project that genuinely uses your tool, with code, parts, instructions and an external tutorial link where useful.Hardware-specific; sales pitches and non-project blog posts are prohibited, and discoverable projects must be complete.Official Hackster project docs checked 2026-07-30Open Hackster.io submit page (new tab)Hackster.io details
1146BioImage.IO40Link type unknownbioimage.ioCommunities and forumsFreeModerateLaterVerified liveContribute a documented bioimaging privacy or de-identification model, application integration, or other qualifying resource linked to your tool.Must genuinely serve bioimaging, follow the BioImage.IO resource specification and model card requirements, and pass community validation.2026-08-05 — https://bioimage.io/docs/Open BioImage.IO submit page (new tab)BioImage.IO details

How to build backlinks with this list

Four steps that work for a new site, a SaaS or a side project. No paid link packages, nothing that risks a penalty.

  1. Get the basics right first

    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.

  2. Claim profiles and free listings

    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.

  3. Go after a few strong links

    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.

  4. Track and keep it clean

    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

A link opportunity is not a link.

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 view

An 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.

Backlink sites by category

Product launch sites87

One-shot launches where timing and preparation decide the outcome.

Guest posting sites55

Publications that accept contributed articles. Slow and editorial, but the links are earned.

AI tool directories200

Fast-growing listings specifically for AI-powered tools.

App stores and marketplaces273

Extension, plugin and integration stores. Real review processes, real distribution.

Startup directory submission sites120

Startup listings, beta lists and founder media.

Software directory submission sites215

General tool and software catalogues with real search traffic.

Software review sites29

B2B review sites. Slow to approve, strong once live.

Developer platforms for backlinks139

Package, image and docs hosting that carries real authority.

Web design galleries for backlinks87

Showcases judged on craft. A good screenshot matters more than copy.

Web 2.0 and publishing sites214

Write once, link back. Editorial standards vary widely.

PR and press release sites41

Get quoted or distribute a release. Slower, higher ceiling.

Business directory submission sites109

Company and local listings. Unglamorous, consistently indexed.

Profile creation sites163

Owned pages you control: company, founder, knowledge-panel entities.

Forum and community backlink sites61

Answer real questions. Never drop a bare link.

Social bookmarking sites18

Brand surface and referral traffic more than link equity.

More backlink opportunities153

Everything that does not fit the buckets above.

Common questions

Do backlinks still matter for ranking in 2026?
Links remain one signal among many, and low-quality bulk links do more harm than good. What still works is being listed where your buyers actually look — directories with real traffic, registries your peers use, and launch platforms with engaged audiences. Every entry in this list is a place a human might plausibly find you, which is why they are worth submitting to regardless of link equity.
Which submissions should I do first?
Start with the quick wins filter: free, low effort, and not in the lowest priority band. 208 of the 1,964 entries qualify, and those are the ones where a single form submission gets you a live listing the same week. Launch platforms are worth saving until your product is genuinely ready, because you only get one good attempt at each.
How is the impact score calculated?
It starts from a hand-assigned priority band (do first, high, medium, later), then adjusts for cost and effort. A free, quick opportunity scores above a paid, involved one in the same band, because it is the one you can realistically finish today. The score is a queueing aid, not a measure of domain authority.
Are these links free?
1,628 of the 1,964 entries are free to submit to or offer a free tier that includes a listing. Cost is shown on every row, and the "nothing to pay" filter narrows the list to exactly those.
Which backlink sites are dofollow?
44 entries are known to give a followed link on a normal listing, and more give one only in some placements. The link type is shown on every row and can be filtered. Sites change their link policy without notice, so treat the label as a starting point and check the live page after you are listed. A nofollow link from a busy site still sends visitors and helps search engines discover you.
What does the DA number mean?
It is our estimate of the site's domain authority, a third-party style 0-100 score of how strong a domain's link profile is, rounded to the nearest 5. 1,580 of the 1,964 sites have one. It is useful for comparing sites, not a Google metric, so relevance to your niche still matters more.
How do I get backlinks for a new website?
1. Get the basics right first: 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. 2. Claim profiles and free listings: 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. 3. Go after a few strong links: 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. 4. Track and keep it clean: 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.
Will submitting everywhere hurt my site?
Submitting to spam directories can. That is why this list is curated rather than scraped, and why entries carry a status showing whether they have been verified as live. Skip anything that promises hundreds of links for a fee, and prefer places where a real person reviews submissions.