https://appsgolem.com
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
89
GRADE
B
FIX
1
REVIEW
6
PASS
12
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
98
95
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
464 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.09 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
719 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.11 s
Page Load Progression
464 ms
927 ms
1.4 s 1.9 s
2.3 s 2.8 s 3.2 s
3.7 sChecks
2212 PASS 6 REVIEW 1 FIX
FHTTP CachingActionNo cache headersFIX
HTTP Caching
ActionNo cache headers
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization45 images, 0 KB saveableREVIEW
Image Optimization
45 images, 0 KB saveable
45 images, 0 KB saveable
Info::
All images are well-optimized
45 images 325 KB
0 oversized -0 KB
44 legacy format
0 missing dimensions CLS risk
BJS Execution Cost980ms total JS executionREVIEW
JS Execution Cost
980ms total JS execution
980ms total JS execution
Warning::
https://appsgolem.com/en/: 595ms CPU time
Warning::
Unattributable: 385ms CPU time
Main Thread Breakdown
Other 44% Style & Layout 32% Rendering 15% Script Evaluation 4% Parse HTML & CSS 3%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://appsgolem.com/en/ | 595ms | 7ms | 2ms | 1st |
| Unattributable | 385ms | 5ms | 0ms | 1st |
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
HTTP/3 (QUIC)
HTTP/3 not advertised
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
CCompression AlgorithmActionMain response served uncompressedREVIEW
Compression Algorithm
ActionMain response served uncompressed
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
Main HTML Cache-Control
No Cache-Control header on main HTML response
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
A+Page Weight Budget613 KB transferred, 57 requestsPASS
Page Weight Budget
613 KB transferred, 57 requests
613 KB transferred, 57 requests
Info::
Page weighs 1.0 MB (613 KB transferred)
Info::
Fonts are 236 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 236 KB
Info::
57 HTTP requests
Info::
Estimated 0.13 g CO2 per page load
613 KB transferred
57 requests
0.13 g CO2 per page load
Images 324.9 KiB 53%
Fonts 236.0 KiB 38%
HTML 20.4 KiB 3%
JavaScript 16.2 KiB 3%
CSS 12.7 KiB 2%
Other 2.9 KiB 0%
0 2.4 MB 4.9 MB
Under budget
Subset fonts to include only used characters, or switch to system font stacks.
Why this matters
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
A+Third-Party ImpactNo third-party resourcesPASS
Third-Party Impact
No third-party resources
No third-party resources
Info::
No third-party resources detected
No third-party resources detected — all resources are first-party.
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+Font Loading5 fonts (236 KB)PASS
Font Loading
5 fonts (236 KB)
5 fonts (236 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
5
236 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
inter-Cp50SjIa1ZL7.260c... woff2 swap
Size 48 KB
Load time 66 ms
Start 157 ms
Risk FOUT — text flashes from fallback to web font
fraunces-TK0K1ChjeveQ.f... woff2 swap
Size 80 KB
Load time 67 ms
Start 159 ms
Risk FOUT — text flashes from fallback to web font
jetbrainsmono-YRbKPxTcw... woff2 swap
Size 10 KB
Load time 51 ms
Start 331 ms
Risk FOUT — text flashes from fallback to web font
jetbrainsmono-7BYRbKPxD... woff2 swap
Size 32 KB
Load time 52 ms
Start 331 ms
Risk FOUT — text flashes from fallback to web font
fraunces-c2Wa0KxC9TeA.0... woff2 swap
Size 67 KB
Load time 19 ms
Start 704 ms
Risk FOUT — text flashes from fallback to web font
Optimization checklist
- Preload critical fonts (priority=high)
- Use woff2 format for all fonts
- Set font-display to swap, optional, or fallback
- Subset large fonts (≤100 KB each)
A+JS Bundles2 scripts, 0 KB unusedPASS
JS Bundles
2 scripts, 0 KB unused
2 scripts, 0 KB unused
0 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://appsgolem.com/static/js/htmx-2.0.3.min.93063fe04ea3.js | 15 KB | — | ✓ | 1st |
| https://appsgolem.com/static/js/menu-1.0.ea187f2bf712.js | 1 KB | — | ✓ | 1st |
A+Resource CachingAll resources properly cachedPASS
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
A+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: Accept-Language, Cookie
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A+Page Weight Inventory57 resources · 613 KB · 0 KB savings availablePASS
Page Weight Inventory
57 resources · 613 KB · 0 KB savings available
57 resources · 613 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 613 KB
Info::
1 third-party resources (0% of weight)
Info::
1 resources over 200KB
57 resources · 613.2 KiB · 1 third-party Within 1MB page-weight target
Image 53% · 327.0 KiB
Font 38% · 236.0 KiB
Document 3% · 21.2 KiB
JavaScript 3% · 16.2 KiB
CSS 2% · 12.7 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 57 resources | 613.2 KiB | ||||||
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: OVHcloud
Network Waterfall57 requests over 1389msINFO
Network Waterfall
57 requests over 1389ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-07-22 — 2026-08-18)
LCP (p75)
1303 ms
91% good
INP (p75)
64 ms
95% good
CLS (p75)
0.030
85% good
FCP (p75)
1277 ms
TTFB (p75)
975 ms
This origin passes Core Web Vitals assessment
Image Optimization60 images, 290 KB total, 172 KB wastedINFO
Image Optimization
60 images, 290 KB total, 172 KB wasted
Image Optimization Audit
Total Images
60
Total Size
290 KB
Oversized
1
Wasted
172 KB
56 missing dimensions 51 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.