JavaScript SEO Report 2025 Statistics & Headlines

https://sitebulb.com/javascript-seo/report/

Some headlines:
🙂 There has been an improvement in understanding about how Google renders JavaScript since the 2024 Report
🤔 The vast majority of SEOs aren't sure which LLM crawlers render JavaScript
😩 Nearly a third (28.5%) of respondents said they aren’t comfortable investigating SEO/AI Search issues caused by JavaScript
😭 There has been an increase in SEOs saying they were not comfortable explaining SEO/AI Search issues caused by JavaScript to clients and stakeholders
👍 However, of those who are "very comfortable", two-thirds (64.3%) said they secure engineering resource for fixes some or all of the time
🎉 A whopping 81% said they use tools to analyze the difference between the response HTML and the rendered HTML
🕷️ JavaScript crawling has taken over as the dominant choice (vs HTML) & is now selected twice as often as non-JavaScript crawling

Thank you to everyone who took part, and also to Aleyda Solís, Samantha Torres, Dan Taylor ♒ and Emina Demiri for their commentary on the data.

As last year, Sitebulb Co-Founder & CEO Patrick Hathaway has given his thoughts on the data, saying:

"While survey data can give us an idea of perception and attitudes, usage data tells us about the choices real SEOs are making through their actions. Crawling with the JavaScript crawler is fast becoming the only way to crawl, and nearly half the time SEOs are actively looking into differences caused by rendering. Very encouraging all round!”