18 high-authority backlink sites for startups, and how to use them safely

A shared backlink list can be useful for startup SEO, but only if you treat it as a quality-control workflow, not a copy-paste link drop.

The backlink list is useful, but the claim needs a filter

A founder-style backlink list is a good starting point, not a finished SEO strategy.

The shared list says "17 websites," but it includes 18 domains: Viralmarketinglab, Crunchbase, Patreon, Scribd, Medium, SlideShare, Craigslist, Tumblr, Reddit, Pinterest, Quora, Business2Community, Yelp, Blogger, Manta, About.me, Framer, and Substack.

The real lesson is simple: startups should build a visible footprint on trusted third-party platforms. Some of those pages may send referral traffic. Some may help search engines and AI systems understand your brand entity. A smaller number may give you a clean, followed backlink.

Do not assume every link is "do follow." Many large platforms add nofollow, ugc, or redirect handling to user-generated links. That does not make them useless, but it changes the goal. Treat each platform as a visibility asset first and a backlink source second.

Google's guidance on qualifying outbound links explains how site owners can use rel="nofollow", rel="sponsored", and rel="ugc". Google's spam policies also warn against manipulative link schemes, low-quality directories, and spammy user-generated links. So the safe version of this tactic is not "drop your URL everywhere." It is "build complete, useful profiles and content on platforms where your startup genuinely belongs."

Backlink value spectrum showing followed links, business profile citations, nofollow community links, content-platform links, and brand mentions

Caption: Not every useful link works the same way. Some links help authority, some help referral traffic, and some help brand/entity clarity.

The better way to think about "do follow" backlinks

There is no magic rel="dofollow" tag. In everyday SEO language, a "do follow" link usually means a normal crawlable link that is not marked with nofollow, ugc, or sponsored.

But startup link building should not be judged by one attribute alone.

A link can help in four different ways:

Link type

What it can do

What to watch

Followed editorial link

May pass ranking signals and discovery value

Harder to earn; usually requires real editorial value

Business profile citation

Helps brand/entity consistency

Often nofollow or redirected

Community link

Can send qualified referral traffic

Usually marked UGC or moderated heavily

Content-platform link

Builds topical footprint and thought leadership

Duplicate, thin, or self-promotional content can backfire

Local/directory listing

Helps local trust and NAP consistency

Low-quality directories can look spammy

The practical takeaway: measure more than link count. Track referral visits, branded searches, indexed profile pages, AI search mentions, and conversions from these platforms.

How to use the 18 sites

Here is a safer interpretation of the shared list.

Site

Best use for startups

SEO value to expect

Risk level

Viralmarketinglab.com

Startup listing or marketing directory, if the site is active and editorially maintained

Possible citation or listing link

Medium, verify quality first

Crunchbase.com

Company profile, funding history, founders, product category, official website

Strong entity citation and brand trust

Low

Patreon.com

Creator, community, or paid content page if your startup has a creator angle

Brand and referral value

Medium, only use if relevant

Scribd.com

Upload public guides, research summaries, templates, or documentation

Content discovery and document visibility

Medium

Medium.com

Publish original essays, founder notes, tutorials, and thought leadership

Referral traffic and topical footprint

Medium

SlideShare.net

Repurpose decks, webinars, reports, and pitch-style explainers

Discovery from presentation content

Medium

Craigslist.org

Local service or hiring visibility where appropriate

Mostly local/referral value

High if irrelevant

Tumblr.com

Lightweight brand blog or visual content archive

Weak SEO alone, useful for brand footprint

Medium

Reddit.com

Helpful participation in relevant communities

Referral traffic, feedback, product discovery

High if promotional

Pinterest.com

Visual search, product imagery, templates, checklists, infographics

Strong for visual niches

Medium

Quora.com

Answer high-intent questions with useful explanations

Referral traffic and answer visibility

High if spammy

Business2Community.com

Contributed articles or syndicated business content, if accepted

Editorial visibility

Medium

Yelp.com

Local business profile, reviews, service-area trust

Local SEO and brand trust

Low for local businesses

Blogger.com

Owned support blog, changelog, or resource archive

Only useful if maintained well

Medium to high if used as a link farm

Manta.com

Business directory profile

Citation consistency

Low to medium

About.me

Founder or company identity page

Brand/entity citation

Low

Framer.com

Website, landing page, template, or showcase page if you actually use Framer

Product-led visibility

Medium

Substack.com

Newsletter archive, founder essays, category commentary

Audience building and branded search

Low to medium

The pattern is clear. Crunchbase, About.me, Manta, and Yelp are mostly entity/citation plays. Medium, Substack, Scribd, SlideShare, Blogger, Tumblr, and Framer are content or owned-presence plays. Reddit and Quora are community plays. Pinterest is a visual discovery play. Craigslist is only useful for certain local or service-based startups.

What most teams get wrong

Most bad backlink campaigns fail for boring reasons.

They use the same anchor text everywhere. They publish empty profiles. They add links before earning any reason for the reader to click. They treat Reddit and Quora like free ad space. They build ten thin pages in a day, then wonder why nothing moves.

A safer campaign looks slower on the surface, but it compounds better.

Instead of creating a blank Medium post that says "visit our AI tool," publish a short teardown of a real customer problem. Instead of dropping a link into Reddit, answer the question first and only link when the resource genuinely saves the reader time. Instead of making a Blogger site just to point links at your homepage, use it only if you can maintain a real support or update archive.

The question is not "Can I place my URL here?"

The better question is: "Would this page still deserve to exist if the backlink did nothing?"

If the answer is no, skip it.

The 7-day startup backlink sprint

Use this as a small, controlled campaign. Do not try to finish every platform in one sitting.

Seven-day startup backlink sprint checklist with profile audit, entity pages, content asset, repurposing, communities, QA check, and measurement steps

Caption: A one-week backlink sprint should include profile cleanup, entity pages, real content assets, careful community participation, QA, and measurement.

Day

Task

Output

Day 1

Audit your current brand facts

One consistent company description, category, URL, founder names, social links

Day 2

Build core entity profiles

Crunchbase, About.me, Manta, Yelp if local

Day 3

Create one real content asset

A guide, checklist, comparison, deck, or founder essay

Day 4

Repurpose the asset

Medium, Substack, Scribd, SlideShare, Pinterest where relevant

Day 5

Join two communities carefully

Reddit and Quora, with answers first and links second

Day 6

Inspect link attributes and page quality

Record URL, anchor, rel attribute, indexability, and notes

Day 7

Measure early signals

Referral traffic, indexed pages, branded searches, assisted conversions

For a SaaS startup, one good workflow might be:

  1. Complete a Crunchbase profile.
  2. Publish a founder essay on Substack about the problem your product solves.
  3. Turn the essay into a checklist on Medium.
  4. Turn the checklist into a SlideShare deck.
  5. Create a Pinterest pin for the checklist if the topic has visual search demand.
  6. Answer two Quora questions without forcing exact-match anchor text.
  7. Mention the resource in one Reddit thread only if the community rules allow it.

That is already enough for a first sprint.

Backlink QA checklist

Before you count a link as useful, check the page.

Check

How to inspect it

Good sign

Link attribute

Inspect the anchor tag in browser dev tools

No spammy redirect chain; attribute matches context

Page quality

Read the page like a human

Complete profile, real content, no scraped junk

Anchor text

Look at the visible linked text

Brand name, URL, product name, or natural phrase

Indexability

Search the exact profile URL or use indexing tools

Page can be discovered

Relevance

Ask if your ideal buyer would understand why you are there

Platform matches your category or audience

Traffic

Check analytics referral reports

Some visits, even if small

Brand consistency

Compare description, category, name, and URL

Same facts across profiles

If you use Auspia, this is also a good moment to run a basic site health check with the Website SEO Score Checker before you send more authority signals to a weak homepage. Backlinks help more when the destination page is clear, crawlable, and worth citing.

Anchor text rules for this kind of campaign

Keep anchor text boring.

Use:

  • Your brand name
  • Your homepage URL
  • Your product name
  • A natural phrase like "read the full checklist"
  • A page title if it matches the context

Avoid:

  • Repeating one exact keyword across every platform
  • Stuffing commercial anchors into profiles
  • Linking every profile to the homepage only
  • Adding links to pages with no content depth
  • Using communities only for self-promotion

For a startup, branded links are usually safer than aggressive keyword anchors. They also help with entity recognition, which matters for search engines and AI answer systems.

Which sites should you prioritize first?

If you only have one afternoon, do not start with all 18.

Start here:

Startup type

Prioritize first

B2B SaaS

Crunchbase, Medium, Substack, Quora, SlideShare

Local service business

Yelp, Manta, Craigslist, About.me, Pinterest

Creator-led startup

Substack, Patreon, Medium, Pinterest, Reddit

Design or no-code product

Framer, Pinterest, Medium, product-related communities

Research-heavy startup

Scribd, SlideShare, Medium, Substack, Crunchbase

Consumer product

Pinterest, Reddit, Yelp if local, Substack, Medium

The mistake is treating every high-authority domain as equally useful. A backlink from a platform your buyers never use is not the same as a profile that sends qualified visitors every month.

Auspia take

This shared backlink list is useful because it reminds startups to build a public footprint outside their own website. That part is right.

The risky part is the "do follow" framing. Link attributes change by platform, page type, and policy. Large user-generated platforms often qualify outbound links. Some links will help with referral traffic rather than PageRank. Some profiles are useful for brand/entity consistency even when they do not act like classic backlinks.

So use the list, but do not worship the list.

A better startup SEO system has three layers:

  1. A technically clean website with clear landing pages.
  2. A consistent brand/entity footprint across trusted third-party platforms.
  3. A small number of genuinely earned editorial links from partners, customers, tools, reports, and industry publishers.

The 18 sites can help with layer two. They may occasionally help with layer three. They cannot replace a real reason for people to cite you.

FAQ

Are these sites guaranteed to give dofollow backlinks?

No. Link attributes can vary by platform, page type, account status, moderation rules, and time. Always inspect the actual link on the published page before counting it as followed.

Are nofollow links useless for SEO?

No. A nofollow or UGC link may still send referral traffic, help people discover your brand, and contribute to a broader entity footprint. It should not be valued the same way as an earned editorial link from a relevant article.

Should startups create profiles on all 18 sites?

Only if the profile or content makes sense. Crunchbase and About.me are broadly useful. Yelp is mainly useful for local businesses. Patreon only makes sense if you have a creator or membership angle. Reddit and Quora require real participation.

Is it safe to use Blogger or Tumblr for backlinks?

It depends on intent and quality. A maintained brand blog, update archive, or resource hub can be fine. A thin blog created only to push links at your main site is a bad idea.

How many backlinks should a new startup build in the first month?

Think in terms of quality assets, not raw count. A good first month might include five complete profiles, two repurposed content assets, and a few helpful community answers. That is better than 50 weak links from irrelevant pages.

What should I measure after publishing these links?

Track referral traffic, branded search growth, profile indexation, assisted conversions, and whether AI search tools can identify your company more accurately. Do not rely only on third-party backlink counts.

Source notes

Author: Hannah Pierce, 12-Year B2B SEO Growth Practitioner at Auspia. Hannah writes about startup SEO, buyer-focused content, and practical search workflows for small growth teams.

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