Technical SEO
hreflang
hreflang is an annotation declaring that several URLs are alternate language or regional versions of the same content, so the right one is served to the right audience.
What is hreflang?
Hreflang is an annotation declaring that several URLs are alternate language or regional versions of the same content, so the right one is served to the right audience. It can be declared in the head, in HTTP headers or in a sitemap.
Why this is worth knowing
Without it, regional versions compete with each other and the wrong country’s page ranks in a market you target.
How it works in practice
Every page in a set must reference every other page including itself, with matching language and optional region codes, and the references must be reciprocal to be honoured.
The usual mistake
A one-way annotation is ignored, which is the most common reason a well-intentioned implementation does nothing. Canonicalising a translation to the source-language page defeats it entirely.
That is the whole of it. Anything more specific depends on the site in front of you.
Where this comes up in the work
It is part of AI Automation and Workflows, and more specifically of Data pipeline and warehousing. Across the rest of the work it shows up in:
- Paid Social and Meta Ads, where getting it wrong shows up in testing concept before format and format before detail
- Conversion Rate Optimization: it is the reason treating performance as a conversion problem on the pages that carry revenue is scoped the way it is
- Website Design and Development, where it is the difference between making speed a constraint of the build rather than an optimisation after it working and appearing to
- AI Automation and Workflows, where it quietly limits how far measuring the hours saved rather than assuming them can go
What to check
Two questions that establish whether this is actually in order on a given site:
- Whether the last audit of it predates the current site
- Whether a new page inherits it automatically or has to be remembered
More in Technical SEO
Common questions
Does hreflang affect rankings directly?
Without it, regional versions compete with each other and the wrong country’s page ranks in a market you target. The honest framing is that it removes a constraint rather than adding a boost.
How is hreflang audited?
Every page in a set must reference every other page including itself, with matching language and optional region codes, and the references must be reciprocal to be honoured. The check is cheap; the fix is where the work sits.
Who owns hreflang in a business?
It needs one named owner rather than a shared responsibility. The natural home is Digital PR and Link Building, since making a named person in the business worth quoting is where the consequence lands.
How much work is hreflang?
Less than people expect to check and sometimes more than they expect to fix. Every page in a set must reference every other page including itself, with matching language and optional region codes, and the references must be reciprocal to be honoured. Start at Ecommerce and retail if nothing has been built yet, Education and training if something has and it is not working.
Where does hreflang sit in the priority order?
Before anything that depends on it, which is the test rather than a general ranking. Without it, regional versions compete with each other and the wrong country’s page ranks in a market you target. The order most people need is Entity and Semantic SEO first, Generative Engine Optimization once the first one is running.
How do you prove hreflang is worth fixing?
The symptom is usually downstream: without it, regional versions compete with each other and the wrong country’s page ranks in a market you target, showing up as something else entirely in the reporting. Lead form or Landing page is where this gets expensive. Local SEO or National SEO is where it gets slow.
Begin with the diagnosis, not the pitch
If something simpler would fix it, we will say so. That is usually the most useful thing we can tell you.