https://appsgolem.com
Performance
· 24 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
90
GRADE
A
FIX
2
REVIEW
5
PASS
13
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
98
94
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.26 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.03 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
64 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.003
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
3.49 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
2.36 s
Page Load Progression
756 ms 1.5 s
2.3 s
3.0 s
3.8 s 4.5 s
5.3 s
6.0 sChecks
2413 PASS 5 REVIEW 2 FIX
DJS Execution CostAction2921ms total JS executionFIX
JS Execution Cost
Action2921ms total JS execution
2921ms total JS execution
Warning::
https://appsgolem.com/en/: 1983ms CPU time
Warning::
Unattributable: 868ms CPU time
Info::
https://appsgolem.com/static/js/htmx-2.0.3.min.930...: 70ms CPU time
Info::
Third-party scripts: 868ms (30% of total)
Main Thread Breakdown
Other 42% Style & Layout 30% Rendering 22%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://appsgolem.com/en/ | 1983ms | 7ms | 2ms | 1st |
| Unattributable | 868ms | 12ms | 0ms | 3rd |
| https://appsgolem.com/static/js/htmx-2.0.3.min.93063fe04ea3.js | 70ms | 60ms | 9ms | 1st |
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 305 KB
0 oversized -0 KB
44 legacy format
0 missing dimensions CLS risk
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 Budget535 KB transferred, 56 requestsPASS
Page Weight Budget
535 KB transferred, 56 requests
535 KB transferred, 56 requests
Info::
Page weighs 999 KB (535 KB transferred)
Info::
56 HTTP requests
Info::
Estimated 0.11 g CO2 per page load
535 KB transferred
56 requests
0.11 g CO2 per page load
Images 305.2 KiB 57%
Fonts 186.3 KiB 35%
JavaScript 15.3 KiB 3%
HTML 14.7 KiB 3%
CSS 12.0 KiB 2%
Other 2.0 KiB 0%
0 2.4 MB 4.9 MB
Under budget
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 Loading4 fonts (186 KB)PASS
Font Loading
4 fonts (186 KB)
4 fonts (186 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
4
186 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
fraunces-TK0K1ChjeveQ.f... woff2 swap
Size 80 KB
Load time 703 ms
Start 1.8 s
Risk FOUT — text flashes from fallback to web font
jetbrainsmono-YRbKPxTcw... woff2 swap
Size 9 KB
Load time 313 ms
Start 1.8 s
Risk FOUT — text flashes from fallback to web font
jetbrainsmono-7BYRbKPxD... woff2 swap
Size 31 KB
Load time 529 ms
Start 1.8 s
Risk FOUT — text flashes from fallback to web font
fraunces-c2Wa0KxC9TeA.0... woff2 swap
Size 66 KB
Load time 741 ms
Start 1.8 s
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 Hints1 hints, 0 missing preconnectsPASS
Resource Hints
1 hints, 0 missing preconnects
1 hints, 0 missing preconnects
Info::
Page uses 1 resource hint(s)
Current Resource Hints
preconnect—
preload 1
dns-prefetch—
prefetch—
1 resource hints configured
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+Page Weight Inventory56 resources · 535 KB · 0 KB savings availablePASS
Page Weight Inventory
56 resources · 535 KB · 0 KB savings available
56 resources · 535 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 535 KB
Info::
1 third-party resources (0% of weight)
Info::
1 resources over 200KB
56 resources · 535.4 KiB · 1 third-party Within 1MB page-weight target
Image 57% · 306.8 KiB
Font 35% · 186.3 KiB
JavaScript 3% · 15.3 KiB
Document 3% · 15.0 KiB
CSS 2% · 12.0 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 56 resources | 535.4 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
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 Waterfall56 requests over 3948msINFO
Network Waterfall
56 requests over 3948ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
30% of JavaScript execution is third-party
First-party Third-party 868ms · 0KB · €11/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 868ms | 0 KB | — | €11/mo | Costly |
Unattributable
Other
Execution 868ms
Transfer 0 KB
Monthly Cost €11/mo
These scripts may cost more than they're worth
- Unattributable adds 868ms and costs ~€11/month
Unattributable takes 868ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
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 (2026-04-09 — 2026-05-06)
LCP (p75)
1297 ms
93% good
INP (p75)
75 ms
95% good
CLS (p75)
0.030
80% good
FCP (p75)
1283 ms
TTFB (p75)
723 ms
This origin passes Core Web Vitals assessment
Image Optimization60 images, 290 KB total, 175 KB wastedINFO
Image Optimization
60 images, 290 KB total, 175 KB wasted
Image Optimization Audit
Total Images
60
Total Size
290 KB
Oversized
13
Wasted
175 KB
13 missing alt text 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.