Hreflang
The "rel alternate" hreflang attribute is essential in an international SEO strategy: find all our resources on how to use hreflang tags on a multilingual site.
Read [Tech & Tricks] Implementing and checking cross-domain hreflang strategies 
[Tech & Tricks] Implementing and checking cross-domain hreflang strategies
How do you manage hreflang declarations for international content spanning a large number of...
Read Introducing new hreflang metrics and language clusters 
Introducing new hreflang metrics and language clusters
We’re excited to present Oncrawl’s extended hreflang metrics. Using hreflang tags allows Google to...
Read 5 technical SEO tricks to improve organic traffic 
5 technical SEO tricks to improve organic traffic
Getting more search engine organic traffic is still and will always be one of...