how-to guide
How to Improve Your Page Speed Score
A practical sequence for finding and fixing what's actually slowing a page down.
Page speed problems usually come down to a small number of common culprits, but it's easy to guess wrong about which one is hurting you. Claude can run the audit and point at the specific issue instead of you tweaking things at random.
Steps
- Ask "how fast is my homepage (or a specific page)?" to get a baseline Lighthouse audit.
- Claude reports your LCP, CLS, and INP scores along with the biggest issues it found.
- Ask which single fix would help the most — often an unoptimized image, a render-blocking script, or missing size attributes causing layout shift.
- Make that one change and ask Claude to re-check the same page.
- Repeat for your next most important page rather than trying to fix everything site-wide at once.
ask datanephew
Where should I start if I don't know anything about web performance?
Ask datanephew to run the audit and tell you the single biggest issue — no need to understand every metric before acting on one clear recommendation.
How do I know if a fix actually worked?
Ask datanephew to re-run the same audit on the same page after your change and compare the before-and-after scores directly.