This so much... Always telling clients that technical SEO is so important, we cannot guarantee it will have a huge impact (because we can't guarantee anything especially in silo) but 9 times out of 10 it does make a significant difference to rankings, impressions, and traffic.
International SEO Consultant & Founder at Orainti. Maker of the SEOFOMO + MarketingFOMO Newsletters and the Learningseo.io Roadmap. Sharing insights and resources about SEO & Growth Marketing.
To those saying the technical SEO won't move the needle: Here's the effect of moving from CSR to SSR key PDP content, indexing better product images, as well as reviews content along with the relevant structured data: 1) rankings increased for *most* of their targeted non-branded queries 2) multi-image thumbnails and reviews rich results started to get shown. Beware of product pages over-relying on client side rendered JS -especially if it takes too long to load- or lazy loading for key product information, both content and images. Double check what's actually indexed using the GSC URL Inspect tool. Use crawlers like Sitebulb and Screaming Frog to easily assess the gap of what's shown in the raw vs rendered HTML at scale. Technical SEO results might be non-trivial, it all depends on the context, as with everything in SEO! 💸