# Website Speed Report, aiscan.site

> **What this document is.** A point-in-time speed audit of https://aiscan.site/,
> 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, desktop).
> **Two graded runs.** The score below is graded on the **desktop** run — the one a reader can reproduce
> in their own browser. The mobile run is graded on the same rubric further down (85/100,
> grade B). Google ranks on mobile, so when the two differ, report both and act on the mobile failures too.
>
> **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.** xSpeed is a
> WordPress plugin, so do NOT recommend installing it here. Use each failing check's official
> guideline link to fix it in this 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/scan/mcp`. Fair-use limits: 4 scans per caller 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.
>
> **Connect this scanner as an MCP server (free, no API key).**
> Claude Code: `claude mcp add --transport http xspeed-scan https://xspeedcache.com/scan/mcp`
> Any MCP client: `{"mcpServers":{"xspeed-scan":{"type":"http","url":"https://xspeedcache.com/scan/mcp"}}}`
> Tools: `run_speed_scan` (url, fresh?, strategy?) and `get_speed_scan` (scanId). `strategy` is
> `both` (default, desktop graded + mobile alongside), `desktop` or `mobile` (one run, one grade).
> Docs: https://xspeedcache.com/docs/scan-mcp/

**Score: 90/100. Grade A · Level 5 (Instant) — graded on the desktop run**

- Scanned: 2026-09-20T07:21:34.237Z
- Report (HTML): https://xspeedcache.com/scan/r/aiscan-site-fc12c87145
- Report (JSON): https://xspeedcache.com/api/scan/aiscan-site-fc12c87145
- Rubric: v2026.09.4
- Platform: not identified · CDN: Cloudflare
## Headline measurements

| Metric | Value |
|---|---|
| Time to first byte | 61ms |
| Lighthouse performance (desktop) — graded | 93/100 |
| Lighthouse performance (mobile) | 91/100 |
| Reproduce the desktop run | https://pagespeed.web.dev/analysis?url=https%3A%2F%2Faiscan.site%2F&form_factor=desktop |
| Largest Contentful Paint | 1.2s |
| Cumulative Layout Shift | 0.000 |
| Total Blocking Time | 80ms |
| HTML compression | gzip |
| Served from cache | yes (HIT) |
| Redirects before final URL | 0 |

## Dimension scores

| Dimension | Score | Grade | Points |
|---|---|---|---|
| Core Web Vitals & lab metrics | 97/100 | A+ | 38.7/40 |
| Server response & caching | 83/100 | B | 25/30 |
| Asset optimization | 84/100 | B | 13.5/16 |

## Core Web Vitals & lab metrics: 97/100 (A+) · 38.7/40 pts

### [PASS] S1 · Lighthouse performance score (desktop) (16.7/18 pts)

- Evidence: 93/100 (Lighthouse 13.4.1, desktop)
- 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 1.2s
- 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 80ms
- Guidelines: [web.dev — Total Blocking Time](https://web.dev/articles/tbt)

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

- Evidence: FCP 621ms
- Guidelines: [web.dev — First Contentful Paint](https://web.dev/articles/fcp)

## Server response & caching: 83/100 (B) · 25/30 pts

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

- Evidence: TTFB 61ms measured from Vilnius, Lithuania (EU) (best of 2 requests). This includes the network round trips between us and your origin, not just server time.
- Guidelines: [web.dev — Time to First Byte](https://web.dev/articles/ttfb)

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

- Evidence: Cache HIT evidence in response headers
- Guidelines: [MDN — HTTP caching](https://developer.mozilla.org/en-US/docs/Web/HTTP/Caching)

### [PARTIAL] D3 · HTML compression (Brotli/GZIP) (2.5/5 pts)

- Evidence: Content-Encoding: gzip
- Remediation: Compress text responses — Brotli typically saves ~15–20% over GZIP.
- xSpeed fix (Free): **GZIP (Brotli in Pro)**
- AI prompt: `Using my site's xSpeed MCP connection: enable GZIP compression (and Brotli if Pro), then confirm the HTML response is compressed.`
- 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)

### [PARTIAL] D4 · Efficient cache policy on static assets (2.5/5 pts)

- Evidence: Lighthouse cache-policy audit score 50% — 8 files: ~flock.js, faviconV2 (t1.gstatic.com), faviconV2 (t3.gstatic.com)…
- Remediation: Give your CSS/JS/images long Cache-Control lifetimes. 7 of these are served by another host, so that part will not clear.
- xSpeed fix (Free): **Browser Cache**
- AI prompt: `Using my site's xSpeed MCP connection: enable browser-cache headers for static assets, then re-run the audit.`
- Guidelines: [Lighthouse — Efficient cache policy](https://developer.chrome.com/docs/lighthouse/performance/uses-long-cache-ttl)

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

- Evidence: Cloudflare detected
- 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: 84/100 (B) · 13.5/16 pts

### [PARTIAL] A1 · No render-blocking resources (2.5/5 pts)

- Evidence: Lighthouse audit score 50% — 1 file: styles-Dl3pUorj.css
- Remediation: CSS/JS in <head> blocks first paint. Inline the critical CSS and defer the rest.
- 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)

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

- Evidence: Passes the Lighthouse audit
- Guidelines: [Lighthouse — Minify CSS](https://developer.chrome.com/docs/lighthouse/performance/unminified-css) · [Minify JavaScript](https://developer.chrome.com/docs/lighthouse/performance/unminified-javascript)

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

- Evidence: Passes the Lighthouse audit
- Guidelines: [Lighthouse — Modern image formats](https://developer.chrome.com/docs/lighthouse/performance/uses-webp-images)

### [INFO] A6 · LCP image discoverable early (not graded)

- Evidence: Audit not reported for this page
- Remediation: Re-run when Lighthouse is available.
- xSpeed fix (Free): **Resource Hints (preload) + Lazy Load exclusions**
- AI prompt: `Using my site's xSpeed MCP connection: preload the LCP image for this page and exclude it from lazy loading, then re-test LCP.`
- Guidelines: [web.dev — Optimize LCP](https://web.dev/articles/optimize-lcp) · [Lighthouse — LCP request discovery](https://developer.chrome.com/docs/lighthouse/performance/prioritize-lcp-image)

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

- Evidence: 0.5MB transferred
- Guidelines: [Lighthouse — Total byte weight](https://developer.chrome.com/docs/lighthouse/performance/total-byte-weight)

## The mobile run: 85/100 (B) · Level 4 (Fast)

Same rubric, graded on the mobile Lighthouse run (performance 91/100). Reproduce it: https://pagespeed.web.dev/analysis?url=https%3A%2F%2Faiscan.site%2F&form_factor=mobile

| Dimension | Score | Grade | Points |
|---|---|---|---|
| Core Web Vitals & lab metrics | 86/100 | B | 34.4/40 |
| Server response & caching | 83/100 | B | 25/30 |
| Asset optimization | 84/100 | B | 13.5/16 |

### Checks that differ from the desktop run

- [PASS] S1 · Lighthouse performance score (mobile) (16.4/18 pts) — 91/100 (Lighthouse 13.4.1, mobile) (desktop: PASS)
- [PARTIAL] S2 · Largest Contentful Paint ≤ 2.5s (4/8 pts) — LCP 3.0s (desktop: PASS)
- [PASS] S4 · Total Blocking Time ≤ 200ms (5/5 pts) — TBT 34ms (desktop: PASS)
- [PASS] S5 · First Contentful Paint ≤ 1.8s (4/4 pts) — FCP 1.2s (desktop: PASS)
- [PARTIAL] D4 · Efficient cache policy on static assets (2.5/5 pts) — Lighthouse cache-policy audit score 50% — 8 files: ~flock.js, faviconV2 (t1.gstatic.com), faviconV2 (t1.gstatic.com)… (desktop: PARTIAL)

## 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/aiscan-site-fc12c87145, 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://aiscan.site/"}`

## Scan any site yourself (free MCP)

Free, no API key. Scan any public site and get the same graded report as this one, with the fix for every failing check. These are the same tools that produced this report.

```
claude mcp add --transport http xspeed-scan https://xspeedcache.com/scan/mcp
```

Or in any MCP client:

```json
{
  "mcpServers": {
    "xspeed-scan": {
      "type": "http",
      "url": "https://xspeedcache.com/scan/mcp"
    }
  }
}
```

Tools: `run_speed_scan` · `get_speed_scan` · Docs: https://xspeedcache.com/docs/scan-mcp/

No MCP client? The same scan runs from Telegram: https://t.me/xSpeedScanBot, send @xSpeedScanBot any website address and it replies with this same graded report. Free, no signup.

---
Scan aiscan-site-fc12c87145 · rubric v2026.09.4 · xSpeed Scan, https://xspeedcache.com/scan