Link Building by Industry

The fundamentals of link building are the same everywhere: relevant sites, real editorial standards and a natural mix of anchor text. What changes from one industry to the next is where those links come from, which publishers will say yes, and which rules you have to work within.

A dentist and a crypto exchange both need backlinks, but they have almost nothing else in common. One lives on local relevance and professional bodies, the other spends half its time finding publishers willing to touch the topic at all. Regulated sectors (law, healthcare, gambling, finance) add a second layer, because the advertising rules that apply to a firm don't stop at its own website.

Each guide below covers the link sources that genuinely work in that sector, the constraints that are specific to it, and the mistakes that tend to cost the most. If you're new to the subject, start with the complete link building guide and the overview of link building strategies, then come back to your industry.

What changes from industry to industry

Industry	What makes it different	Best link types	Main risk
Local businesses	Relevance is geographic, not just topical	Local press, sponsorships, chambers, suppliers	Chasing national links that do nothing for the map pack
Local citations	Consistency of business details matters as much as the link	Data aggregators, Google Business Profile, niche directories	Mismatched NAP details across listings
SaaS	Links need to reach product, comparison and integration pages	Integration partners, review platforms, data studies, guest posts	Every link going to the blog, none to pages that sell
Lawyers and law firms	High value per client and bar or SRA rules on advertising	Legal directories, bar associations, expert commentary	Paid placements that breach professional conduct rules
Ecommerce	Category and product pages rarely attract links on their own	Digital PR, gift guides, supplier and brand pages	Pointing exact-match anchors straight at category pages
Dentists	Mostly local, with a clinical trust layer on top	Local links, professional bodies, dental schools, health content	Generic dental directories that add nothing
iGaming and casino	Many publishers refuse gambling content outright	Gambling-friendly niche sites, sports media, affiliates	Low-quality "casino-friendly" link farms and site reputation abuse
B2B	Small audiences and long sales cycles	Trade press, associations, partner pages, original research	Building links that impress SEOs but never reach buyers
Healthcare	YMYL topic where trust signals carry extra weight	Professional bodies, institutions, expert-reviewed content	Links on low-trust sites next to unverified health claims
Startups	No brand, no budget, no history to work from	Launch platforms, founder stories, investor and accelerator pages	Buying volume before the site has a foundation
Crypto	Publisher acceptance is low and financial promotion rules apply	Crypto media, developer and data resources, sponsored news	Paid crypto news networks with little real readership
Home services	Service-area businesses with no shopfront	Trade bodies, supplier pages, local press, community sponsorships	Fake addresses or doorway location pages

The table is a starting point rather than a rulebook. Within any industry the right mix depends on how competitive your keywords are, what your competitors' referring domains look like, and how much you can spend, which the link building cost guide breaks down.