Khukuri Speed X-Ray

Khukuri Speed X-Ray is a diagnostic tool, not an optimizer. It never modifies your site, never minifies, never converts images, never caches. It scans, explains in plain English, and tells you exactly what to do — including recommending other well-known free plugins by name when they are the right fix.

What it does

• Measures your server — response time (TTFB, 3-sample median), PHP version, gzip/Brotli compression, page-cache and CDN detection, database health (autoloaded options size, expired transients).
• X-rays your homepage — every script, stylesheet, image and iframe is inventoried and weighed. Each asset is traced back to the plugin or theme that loaded it, so you get a per-plugin cost table : this plugin costs you 412 KB and 9 requests on every page view.
• Audits your images — the 10 heaviest images with size, format, missing lazy-loading, missing dimensions (CLS risk), and a specific fix for each one.
• Identifies third-party weight — YouTube embeds, chat widgets, tracking pixels, remote fonts — with an honest explanation of what each one costs.
• Asks Google — pulls your PageSpeed Insights scores (mobile + desktop) and real-visitor Core Web Vitals (LCP, INP, CLS) from the CrUX field data when available.
• Turns it all into a prioritized fix list — ~30 rules produce plain-English cards sorted critical → warning, each with an explanation a non-technical site owner can follow, a specific recommendation, a difficulty badge, and a conservative impact estimate (always labeled as an estimate).

What it deliberately does NOT do

• It does not optimize anything. Diagnosis only. Your site is never modified.
• It does not compete with your optimization plugins — it detects WP Rocket, LiteSpeed Cache, Autoptimize, Smush and others, and tells you what they already have covered.
• It does not fake precision. Where a measurement is approximate (TTFB measured server-to-self, transfer sizes capped at the 30 largest assets), the report says so.
• It does not name paid hosts, sell anything, or show ads. There is no Pro version.