https://carddropx.com
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
96
GRADE
A
FIX
1
REVIEW
1
PASS
17
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
99
100
96
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
736 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
918 ms
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.
828 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.
922 ms
Page Load Progression
375 ms
750 ms
1.1 s
1.5 s 1.9 s 2.2 s 2.6 s
3.0 sChecks
2217 PASS 1 REVIEW 1 FIX
DHTTP CachingActionno-store (uncacheable)FIX
HTTP Caching
Actionno-store (uncacheable)
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-cache, no-store, must-revalidate
Info::
Last-Modified header present
Cache-Control
no-cache, no-store, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| must-revalidate | — | Must recheck with server after expiry |
BImage Optimization16 images, 0 KB saveableREVIEW
Image Optimization
16 images, 0 KB saveable
16 images, 0 KB saveable
Info::
All images are well-optimized
16 images 39 KB
0 oversized -0 KB
16 legacy format
0 missing dimensions CLS risk
A+Page Weight Budget324 KB transferred, 48 requestsPASS
Page Weight Budget
324 KB transferred, 48 requests
324 KB transferred, 48 requests
Info::
Page weighs 432 KB (324 KB transferred)
Info::
48 HTTP requests
Info::
Estimated 0.07 g CO2 per page load
324 KB transferred
48 requests
0.07 g CO2 per page load
Fonts 176.7 KiB 55%
JavaScript 48.7 KiB 15%
Images 39.1 KiB 12%
CSS 22.5 KiB 7%
HTML 18.1 KiB 6%
Other 12.8 KiB 4%
Other 5.5 KiB 2%
Other 499 B 0%
0 2.4 MB 4.9 MB
Under budget
A+Third-Party Impact3% third-party, 0 ms blockingPASS
Third-Party Impact
3% third-party, 0 ms blocking
3% third-party, 0 ms blocking
Info::
Third-party code accounts for 3% of page weight (10.2 KiB of 323.8 KiB)
Info::
Third-party blocking time is low (0 ms)
97%
First-party Third-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+JS Execution Cost496ms total JS executionPASS
JS Execution Cost
496ms total JS execution
496ms total JS execution
Warning::
https://carddropx.com/: 393ms CPU time
Info::
Unattributable: 103ms CPU time
Main Thread Breakdown
Other 47% Style & Layout 35% Script Evaluation 9% Rendering 5%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://carddropx.com/ | 393ms | 6ms | 0ms | 1st |
| Unattributable | 103ms | 10ms | 0ms | 1st |
A+Font Loading7 fonts (177 KB)PASS
Font Loading
7 fonts (177 KB)
7 fonts (177 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
7
177 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
Fraunces-Regular.woff2 woff2 swap
Size 19 KB
Load time 69 ms
Start 187 ms
Risk FOUT — text flashes from fallback to web font
Fraunces-Bold.woff2 woff2 swap
Size 19 KB
Load time 46 ms
Start 188 ms
Risk FOUT — text flashes from fallback to web font
GeistSans-Regular.woff2 woff2 swap
Size 34 KB
Load time 73 ms
Start 188 ms
Risk FOUT — text flashes from fallback to web font
GeistSans-SemiBold.woff2 woff2 swap
Size 36 KB
Load time 48 ms
Start 567 ms
Risk FOUT — text flashes from fallback to web font
GeistMono-Medium.woff2 woff2 swap
Size 17 KB
Load time 37 ms
Start 569 ms
Risk FOUT — text flashes from fallback to web font
GeistMono-Regular.woff2 woff2 swap
Size 16 KB
Load time 35 ms
Start 569 ms
Risk FOUT — text flashes from fallback to web font
GeistSans-Medium.woff2 woff2 swap
Size 35 KB
Load time 40 ms
Start 571 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 Bundles14 scripts, 0 KB unusedPASS
JS Bundles
14 scripts, 0 KB unused
14 scripts, 0 KB unused
0 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d87301792088814092 | 10 KB | — | ✓ | 3rd |
| https://carddropx.com/assets/js/seo.js.e3916c6d44ec | 3 KB | — | ✓ | 1st |
| https://carddropx.com/assets/js/menu-open-pending.js.0f024f6d137c | 2 KB | — | ✓ | 1st |
| https://carddropx.com/assets/js/links.js.19d38c19591b | 4 KB | — | ✓ | 1st |
| https://carddropx.com/assets/js/site-boot.js.8f35d060c2bc | 3 KB | — | ✓ | 1st |
| https://carddropx.com/assets/js/marketing.js.b9c6f9aad3d2 | 7 KB | — | ✓ | 1st |
| https://carddropx.com/app/js/theme.js.eb1fd1960b95 | 3 KB | — | ✓ | 1st |
| https://carddropx.com/assets/js/menu-open-init.js.2af8967878f1 | 2 KB | — | ✓ | 1st |
| https://carddropx.com/app/js/attribution.js.0dc1bf7ed24e | 2 KB | — | ✓ | 1st |
| https://carddropx.com/assets/js/fee-calculator.js.d91baa05843b | 4 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+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+Document CompressionDocument response uses brotliPASS
Document Compression
Document response uses brotli
Document response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
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+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
Main HTML uses no-store -- correct for sensitive/dynamic content
Got: no-cache, no-store, must-revalidate
A+Server-Timing Observability3 Server-Timing entries advertisedPASS
Server-Timing Observability
3 Server-Timing entries advertised
3 Server-Timing entries advertised
Info::
Server-Timing header advertises 3 timing entries
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: Origin
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::
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
A+Page Weight Inventory48 resources · 324 KB · 0 KB savings availablePASS
Page Weight Inventory
48 resources · 324 KB · 0 KB savings available
48 resources · 324 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 324 KB
Info::
1 third-party resources (3% of weight)
48 resources · 323.8 KiB · 1 third-party Within 1MB page-weight target
Font 55% · 176.7 KiB
Image 16% · 51.2 KiB
JavaScript 15% · 48.7 KiB
CSS 7% · 22.5 KiB
Document 6% · 18.1 KiB
Other 2% · 6.6 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 48 resources | 323.8 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: Cloudflare
Asset CompressionNo text asset hosts to measureINFO
Asset Compression
No text asset hosts to measure
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall48 requests over 1029msINFO
Network Waterfall
48 requests over 1029ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization1 images, 11 KB total, 0 KB wastedINFO
Image Optimization
1 images, 11 KB total, 0 KB wasted
Image Optimization Audit
Total Images
1
Total Size
11 KB
1 missing dimensions
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.