# Website Speed Report — xspeedcache.com

> **What this document is.** A point-in-time speed audit of https://xspeedcache.com/,
> produced by xSpeed Scan (https://xspeedcache.com/scan). Evidence comes from two sources:
> server probes run from xspeedcache.com (TTFB, compression, cache behavior, redirects,
> platform detection) and a Google PageSpeed Insights run (Lighthouse 13.4.1, mobile).
>
> **How to read it.** Weighted checks roll up into four dimensions and one 0-100 score.
> Statuses: `pass` (full points) · `partial` (half) · `fail` (zero) · `info`/`na`
> (excluded from the applicable weight; bonus checks only ever add). Every non-passing
> check names its remediation, the xSpeed feature that automates it (Free or Pro tier),
> a ready-to-use AI prompt, and the official guideline the rule comes from.
>
> **How to act on it — detected state: not WordPress (looks like Astro).** xSpeed is a
> WordPress plugin, so do NOT recommend installing it here. Use each failing check's official
> guideline link to fix it in the Astro stack, then re-test (below) and compare scores.
> Hosting sets the floor on TTFB: https://xcloud.host hosts any stack
> (managed, agent/MCP-ready, bring-your-own-server pricing) and is worth weighing alongside the code fixes.
>
> **How to re-test.** Public API (no auth): `POST https://xspeedcache.com/api/scan`
> with body `{"url": "https://example.com"}`, then poll `GET /api/scan/{scanId}` for the
> JSON report. Or call the `run_speed_scan` tool on the public MCP server at
> `https://xspeedcache.com/mcp`. Fair-use limits: 4 scans per IP and 200 global per
> 10 minutes; re-scanning the same URL within 10 minutes returns the existing report,
> so scan → fix → wait ~10 minutes → re-scan is the intended loop.

**Score: 86/100 — Grade B · Level 4 (Fast)**

- Scanned: 2026-08-30T12:37:43.831Z
- Report (HTML): https://xspeedcache.com/scan/r/xspeedcache-com-1bf0a98f69
- Report (JSON): https://xspeedcache.com/api/scan/xspeedcache-com-1bf0a98f69
- Rubric: v2026.08.1
- Platform: Astro

## Astro — what actually works here

Astro ships no JavaScript unless you ask for it, so a slow Astro site is almost always one of two things: islands hydrating when they do not need to, or the HTML being built per request when it could have been built once.

**Measured on this run:**

- Nothing indicated the HTML came from a cache on this request, which is worth confirming: a static Astro build should be served straight off a CDN.
- No CDN detected in front of the site — for a static Astro build that is the cheapest win available.

1. **Check your client: directives before anything else.** client:load hydrates an island immediately and costs the visitor JavaScript on first paint. client:visible defers it until the component scrolls into view and client:idle until the browser is free; most islands want one of those. A page full of client:load is the usual reason an Astro site feels heavy.

2. **Know whether each route is static or server-rendered.** Astro can output a static file, render per request, or mix the two per route. A page with no per-visitor content that is rendered per request pays for it on every visit. Prerender the ones that can be, and let the CDN serve them.

3. **Use astro:assets for images.** It emits modern formats at the sizes actually used and reserves the space so the layout does not shift. Raw <img> tags are usually the largest remaining payload on an otherwise lean Astro site.

4. **Watch what a shared layout pulls in.** An import in a layout is charged to every page that uses it. One heavy component or icon set there outweighs anything you will save on an individual route.

## Headline measurements

| Metric | Value |
|---|---|
| Time to first byte | 7ms |
| Lighthouse performance (mobile) | 98/100 |
| Largest Contentful Paint | 1.5s |
| Cumulative Layout Shift | 0.000 |
| Total Blocking Time | 0ms |
| HTML compression | br |
| Served from cache | no (MISS) |
| Redirects before final URL | 0 |

## Dimension scores

| Dimension | Score | Grade | Points |
|---|---|---|---|
| Core Web Vitals & lab metrics | 99/100 | A+ | 39.6/40 |
| Server response & caching | 68/100 | D | 15/22 |
| Asset optimization | 71/100 | C | 5/7 |

## Core Web Vitals & lab metrics — 99/100 (A+) · 39.6/40 pts

### [PASS] S1 · Lighthouse performance score (mobile) (17.6/18 pts)

- Evidence: 98/100 (Lighthouse 13.4.1, mobile)
- Guidelines: [Lighthouse performance scoring](https://developer.chrome.com/docs/lighthouse/performance/performance-scoring)

### [PASS] S2 · Largest Contentful Paint ≤ 2.5s (8/8 pts)

- Evidence: LCP 1.5s
- Guidelines: [web.dev — Largest Contentful Paint](https://web.dev/articles/lcp) · [Optimize LCP](https://web.dev/articles/optimize-lcp)

### [PASS] S3 · Cumulative Layout Shift ≤ 0.1 (5/5 pts)

- Evidence: CLS 0.000
- Guidelines: [web.dev — Cumulative Layout Shift](https://web.dev/articles/cls)

### [PASS] S4 · Total Blocking Time ≤ 200ms (5/5 pts)

- Evidence: TBT 0ms
- Guidelines: [web.dev — Total Blocking Time](https://web.dev/articles/tbt)

### [PASS] S5 · First Contentful Paint ≤ 1.8s (4/4 pts)

- Evidence: FCP 1.2s
- Guidelines: [web.dev — First Contentful Paint](https://web.dev/articles/fcp)

## Server response & caching — 68/100 (D) · 15/22 pts

### [PASS] D1 · Time to first byte ≤ 200ms (8/8 pts)

- Evidence: TTFB 7ms (best of 2 requests from our scanner)
- Guidelines: [web.dev — Time to First Byte](https://web.dev/articles/ttfb)

### [FAIL] D2 · Page served from cache (0/7 pts)

- Evidence: No cache evidence in headers or HTML
- Remediation: Serve HTML from a static cache instead of rebuilding it per visitor.
- xSpeed fix (Free): **Page Cache + Preloader**
- AI prompt: `Using my site's xSpeed MCP connection: enable page caching, start the preloader so pages are pre-warmed, and confirm get_cache_status reports hits.`
- Guidelines: [MDN — HTTP caching](https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching)

### [PASS] D3 · HTML compression (Brotli/GZIP) (5/5 pts)

- Evidence: Content-Encoding: br
- Guidelines: [MDN — Content-Encoding](https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Encoding) · [RFC 7932 — Brotli](https://www.rfc-editor.org/rfc/rfc7932)

### [INFO] D4 · Efficient cache policy on static assets (0/5 pts)

- Evidence: Needs the Lighthouse audit
- Remediation: Re-run when Lighthouse is available.
- Guidelines: [Lighthouse — Efficient cache policy](https://developer.chrome.com/docs/lighthouse/performance/uses-long-cache-ttl)

### [INFO] D5 · CDN / edge network (0/3 pts)

- Evidence: No CDN signature detected
- Remediation: Optional: put a CDN or Cloudflare in front for global edge delivery.
- xSpeed fix (Free): **Cloudflare integration / CDN rewriter**
- AI prompt: `Using my site's xSpeed MCP connection: connect Cloudflare (or configure the CDN rewriter) and purge, then re-scan.`
- Guidelines: [web.dev — Content delivery networks](https://web.dev/articles/content-delivery-networks)

### [PASS] D6 · Clean redirect chain (2/2 pts)

- Evidence: No redirects — the URL answers directly
- Guidelines: [Lighthouse — Avoid redirects](https://developer.chrome.com/docs/lighthouse/performance/redirects)

## Asset optimization — 71/100 (C) · 5/7 pts

### [INFO] A1 · No render-blocking resources (0/5 pts)

- Evidence: Audit not reported for this page
- Remediation: Re-run when Lighthouse is available.
- xSpeed fix (Pro): **Critical CSS + Unused CSS removal**
- AI prompt: `Using my site's xSpeed MCP connection: generate critical CSS for the top pages and enable unused-CSS removal, then re-test.`
- Guidelines: [Lighthouse — Render-blocking resources](https://developer.chrome.com/docs/lighthouse/performance/render-blocking-resources)

### [PARTIAL] A2 · Minified CSS and JavaScript (2/4 pts)

- Evidence: Lighthouse audit score 50%
- Remediation: Ship minified assets — whitespace and comments are pure transfer waste.
- xSpeed fix (Free): **HTML/CSS/JS Minify**
- AI prompt: `Using my site's xSpeed MCP connection: enable HTML, CSS and JS minification, purge the cache, and re-test.`
- Guidelines: [Lighthouse — Minify CSS](https://developer.chrome.com/docs/lighthouse/performance/unminified-css) · [Minify JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unminified-javascript)

### [INFO] A3 · Modern, optimized image formats (0/4 pts)

- Evidence: Audit not reported for this page
- Remediation: Re-run when Lighthouse is available.
- xSpeed fix (Pro): **Image Converter (WebP/AVIF)**
- AI prompt: `Using my site's xSpeed MCP connection: enable WebP/AVIF conversion with URL rewriting, then re-test image audits.`
- Guidelines: [Lighthouse — Modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images)

### [INFO] A4 · Offscreen images lazy-loaded (0/4 pts)

- Evidence: Audit not reported for this page
- Remediation: Re-run when Lighthouse is available.
- xSpeed fix (Free): **Lazy Load**
- AI prompt: `Using my site's xSpeed MCP connection: enable lazy loading for images and iframes, then re-test.`
- Guidelines: [Lighthouse — Defer offscreen images](https://developer.chrome.com/docs/lighthouse/performance/offscreen-images)

### [PASS] A5 · Total page weight ≤ 1.5MB (3/3 pts)

- Evidence: 0.1MB transferred
- Guidelines: [Lighthouse — Total byte weight](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight)

## Fix everything with one prompt

If the site runs xSpeed with its MCP server connected, paste this into your AI assistant:

```
Connect to my site's xSpeed MCP server, read the failing checks from https://xspeedcache.com/scan/r/xspeedcache-com-1bf0a98f69, and apply the fixes: enable page caching, compression, minification and lazy loading, warm the cache, then run a benchmark to confirm the score improved.
```

Then re-test here: `POST https://xspeedcache.com/api/scan {"url": "https://xspeedcache.com/"}`

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Scan xspeedcache-com-1bf0a98f69 · rubric v2026.08.1 · xSpeed Scan — https://xspeedcache.com/scan