How fast your hero appears: Crawl Audit check 115

Short answer: the hero is the first screen: headline, main image, main button. If it takes too long to appear, people leave before they read your offer. Check 115 grades it by Largest Contentful Paint (check 72), the time until the biggest thing in that first screen shows: within 2.5 seconds passes.

What Crawl Audit checks

• Full report: Lighthouse's LCP from PageSpeed Insights. Pass at 2.5 seconds or less; warning above that, with the time.
• Free check: no PageSpeed data, so it passes if the page has any image, video or element named "hero", and leaves the speed to check 72.
• Warning: no hero media and no speed data.

This check repeats the LCP measurement from the conversion side. The fixes are the same.

What makes a hero slow

• A large hero image or slider, especially if it's lazy-loaded (check 100) or not in a modern format (check 79).
• A slow server response (check 71).
• Stylesheets, scripts or fonts the headline waits for (checks 86, 87 and 98).
• A headline that only appears after JavaScript runs.

On devmarde.com

PageSpeed measured our homepage LCP at 1.5 seconds on mobile on 3 October.

Sources

• web.dev, Largest Contentful Paint (updated 4 September 2025), checked 6 October 2026.