If you are wondering What is hreflang, it is a specific HTML attribute utilized by webmasters to tell search engines the exact language and geographical targeting of a webpage. When you operate a global website with multiple versions of the same page tailored for different regions, this attribute acts as a clear set of directions.
It explicitly tells search engines which specific version to serve to users based on their physical location and browser language preferences. Implementing the hreflang attribute correctly guarantees that your target audience immediately interacts with the most relevant, localized content available on your site.
What is hreflang in SEO?
The hreflang attribute is an HTML tag that tells search engines like Google the language and geographical targeting of a webpage. If you have multiple versions of the same page in different languages or for different regions, you can use the hreflang tag to signal these variations.
This helps search engines serve the correct version of your page to users based on their language and location, providing a better user experience and preventing potential duplicate content issues.
Hreflang vs Canonical Tag
It’s important not to confuse hreflang tags with canonical tags. While both are HTML elements that provide instructions to search engines, they serve different purposes.
| Feature | Hreflang Tag | Canonical Tag |
| Purpose | Specifies the language and regional targeting of a page. | Designates the preferred version of a page when duplicate or very similar content exists. |
| Use Case | For websites with multiple languages or regional versions of a page. | To consolidate ranking signals for duplicate or similar content on a single URL. |
| Signal to Search Engines | These pages are alternates for different languages/regions. | This is the master version of this content. |
In short, hreflang tells search engines about the relationship between different language versions of a page, while a canonical tag tells them which version of a page to index when there are duplicates in the same language.
Why is hreflang Important for International SEO?
Implementing hreflang is essential for any business with a global online presence for several key reasons:
Improved User Experience:
By serving users content in their native language, you create a more welcoming and engaging experience, which can lead to lower bounce rates and higher conversion rates.
Avoiding Duplicate Content Issues:
Without hreflang, search engines might see your different language pages as duplicate content, which can negatively impact your rankings. Hreflang clarifies that these are intentional variations for different audiences.
Increased Rankings:
By signaling the correct language version to search engines, you increase the chances of that page ranking higher in the search results for users in that region.
How hreflang Works in Search Engines?
When a user enters a query, search engines like Google look for signals to determine the most relevant results. The hreflang attribute provides a strong signal about the intended audience of a page.
For example, if a user in Spain searches for a product you sell, and you have a Spanish-language version of that product page with the appropriate hreflang tag, Google is more likely to show them the Spanish page instead of the English one.
This process helps to ensure that users are directed to the content that is most appropriate for them.
How to Implement hreflang Tags?
There are three primary methods for implementing hreflang tags:
Adding hreflang in HTML
This is the most common method and involves adding <link> elements to the <head> section of your HTML. Each language version of a page must have hreflang tags that link to all other language versions, including itself.
Example
If you have an English page and a Spanish page, the English page’s HTML would include:
HTML
<link rel=”alternate” hreflang=”en” href=”https://example.com/page” />
<link rel=”alternate” hreflang=”es” href=”https://example.com/es/page” />
And the Spanish page would include:
HTML
<link rel=”alternate” hreflang=”en” href=”https://example.com/page” />
<link rel=”alternate” hreflang=”es” href=”https://example.com/es/page” />
Using hreflang in XML Sitemaps
For larger websites, adding hreflang tags to every page can be cumbersome. In these cases, you can use an XML sitemap to specify the hreflang attributes for each URL.
This method keeps all the hreflang information in one place, making it easier to manage. Each <url> element in the sitemap will contain <xhtml:link> elements that list every alternate version of the page.
A deep understanding of What are HTTP status Codes is also beneficial here, to ensure that the URLs in your sitemap are live and accessible.
Using HTTP Headers for hreflang
For non-HTML content, such as PDFs, you can use HTTP headers to implement hreflang.
The Link header is used to specify the alternate language versions. This method is less common for standard web pages but is essential for other file types.
Common hreflang Mistakes to Avoid
Incorrect implementation of hreflang can lead to search engines ignoring the tags or misinterpreting them. Here are some common mistakes to avoid:
Missing Return Links:
If page A links to page B with a hreflang tag, page B must link back to page A. These reciprocal links are crucial for the tags to be recognized.
Incorrect Language or Region Codes:
Always use the correct ISO 639-1 format for language codes and ISO 3166-1 Alpha 2 format for region codes. For example, use “en-gb” for English in the United Kingdom, not “en-uk”.
Conflicting Canonical and Hreflang Tags:
A page with hreflang tags should have a self-referencing canonical tag. If a canonical tag points to a different URL, it can create conflicting signals for search engines.
Invalid URLs:
Ensure that the URLs in your hreflang tags are correct and don’t lead to broken pages or redirects.
Know more about: Enterprise SEO
FAQ
Does hreflang improve rankings directly?
While hreflang doesn’t directly boost your rankings in the same way that backlinks do, it can have a positive indirect impact.
By ensuring that users land on the correct language version of your site, you improve their experience, which can lead to lower bounce rates and higher engagement signals that do influence rankings.
When should you use x-default in hreflang?
The x-default hreflang value is used to specify a fallback page when no other language or region matches the user’s browser settings.
This is often used for a language selection page or a generic international version of a site.
Can hreflang be used on single-language websites?
Generally, hreflang is not necessary for single-language websites.
However, it can be beneficial if you have regional variations of the same language, such as different content for the US, UK, and Australia.
In such cases, you can use hreflang to target specific English-speaking regions.
What happens if hreflang is implemented incorrectly?
If hreflang is implemented incorrectly, search engines may ignore the tags altogether.
This can lead to the wrong language versions of your pages being shown in search results, a poor user experience, and potential duplicate content issues.
How does Google verify hreflang annotations?
Google verifies hreflang annotations by crawling all the linked pages and checking for reciprocal links. If page A links to page B with a hreflang tag, Google will check if page B has a return link to page A. If this reciprocal link is missing, the hreflang annotation may be ignored.