Opportunity Performance
Large HTML (over 500 KB)
- Severity
- Opportunity
- Impact
- Medium
- Effort to fix
- Medium
- Issue code
large_html
Why it matters
Heavy HTML takes longer to download and parse, especially on mobile connections.
How to fix it
Remove inline bloat such as embedded data, repeated markup and large inline scripts or styles.
How it affects your score
Finding this issue on any page costs the Performance score 0.5 points, plus up to 4 more depending on the share of crawled pages affected. A smaller improvement with a modest effect on its own.
Find the affected URLs
Open Crawl > Issues and pick Large HTML (over 500 KB). Each affected URL is listed with its evidence, and Copy URLs or Export URLs hands the list to a developer. The issue also appears in the Action Plan, ranked by impact (medium) and effort (medium), and in the issues CSV under the code large_html. After fixing, run a new audit and use Compare to confirm the URLs moved to fixed.