https://potentialspouse.com
Performance
· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
94
GRADE
A
FIX
1
REVIEW
2
PASS
20
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
68
90
100
92
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.99 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
7.00 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
200 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.001
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
5.04 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.
7.00 s
Page Load Progression
505 ms
1.0 s 1.5 s
2.0 s
2.5 s
3.0 s
3.5 s
4.0 sChecks
2620 PASS 2 REVIEW 1 FIX
DJS Execution CostAction2398ms total JS executionFIX
JS Execution Cost
Action2398ms total JS execution
2398ms total JS execution
Warning::
https://potentialspouse.com/assets/js/app-5cc2a48e...: 1096ms CPU time
Warning::
https://potentialspouse.com/: 825ms CPU time
Warning::
Unattributable: 377ms CPU time
Info::
https://static.cloudflareinsights.com/beacon.min.j...: 100ms CPU time
Info::
Third-party scripts: 477ms (20% of total)
Main Thread Breakdown
Other 50% Style & Layout 24% Script Evaluation 17% Rendering 5%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://potentialspouse.com/assets/js/app-5cc2a48e69289dd5a6e0ea1ba8161bee.js?vsn=d | 1096ms | 306ms | 20ms | 1st |
| https://potentialspouse.com/ | 825ms | 16ms | 2ms | 1st |
| Unattributable | 377ms | 8ms | 0ms | 3rd |
| https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 | 100ms | 74ms | 5ms | 3rd |
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.
BHTTP Cachingmax-age=0, private, must-revalidateREVIEW
HTTP Caching
max-age=0, private, must-revalidate
max-age=0, private, must-revalidate
Info::
Cache-Control header is set
Got: max-age=0, private, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
max-age=0, private, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| max-age | 0 | Cache for 0 seconds |
| private | — | Only browser cache, not CDN/proxy |
| must-revalidate | — | Must recheck with server after expiry |
APage Weight Budget835 KB transferred, 21 requestsPASS
Page Weight Budget
835 KB transferred, 21 requests
835 KB transferred, 21 requests
Info::
Page weighs 1.1 MB (835 KB transferred)
Info::
21 HTTP requests
Info::
Estimated 0.17 g CO2 per page load
835 KB transferred
21 requests
0.17 g CO2 per page load
Images 641.9 KiB 77%
Fonts 85.5 KiB 10%
JavaScript 55.8 KiB 7%
CSS 38.1 KiB 5%
HTML 11.0 KiB 1%
Other 1.9 KiB 0%
Other 866 B 0%
Other 467 B 0%
0 2.4 MB 4.9 MB
Under budget
A+Third-Party Impact1% third-party, 0 ms blockingPASS
Third-Party Impact
1% third-party, 0 ms blocking
1% third-party, 0 ms blocking
Info::
Third-party code accounts for 1% of page weight (10.7 KiB of 835.4 KiB)
Info::
Third-party blocking time is low (0 ms)
99%
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+Image Optimization3 images, 0 KB saveablePASS
Image Optimization
3 images, 0 KB saveable
3 images, 0 KB saveable
Info::
All images are well-optimized
3 images 642 KB
0 oversized -0 KB
1 legacy format
0 missing dimensions CLS risk
A+Font Loading4 fonts (86 KB)PASS
Font Loading
4 fonts (86 KB)
4 fonts (86 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
4
86 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
space-grotesk-bold-04a0... woff2 swap
Size 13 KB
Load time 530 ms
Start 1.8 s
Risk FOUT — text flashes from fallback to web font
inter-semibold-75fb76ec... woff2 swap
Size 24 KB
Load time 1.0 s
Start 1.8 s
Risk FOUT — text flashes from fallback to web font
inter-regular-f837d382a... woff2 swap
Size 24 KB
Load time 1.0 s
Start 1.8 s
Risk FOUT — text flashes from fallback to web font
inter-medium-42b9543077... woff2 swap
Size 24 KB
Load time 1.1 s
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, 26 KB unusedPASS
JS Bundles
2 scripts, 26 KB unused
2 scripts, 26 KB unused
Warning::
https://potentialspouse.com/assets/js/app-5cc2a48e...: 26 KB unused (59%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 26 KB
26 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://potentialspouse.com/assets/js/app-5cc2a48e69289dd5a6e0ea1ba8161bee.js?vsn=d | 45 KB | 26 KB (59%) | ✓ | 1st |
| https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 | 11 KB | — | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
Why this matters
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
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+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 max-age=0 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: max-age=0, private, 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: accept-encoding
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 Inventory21 resources · 835 KB · 26 KB savings availablePASS
Page Weight Inventory
21 resources · 835 KB · 26 KB savings available
21 resources · 835 KB · 26 KB savings available
Info::
Within 1MB page-weight target
Got: 835 KB
Info::
9 third-party resources (1% of weight)
Info::
1 resources over 200KB
21 resources · 835.4 KiB · 9 third-party Within 1MB page-weight target
Image 77% · 643.8 KiB
Font 10% · 85.5 KiB
JavaScript 7% · 55.8 KiB
CSS 5% · 38.1 KiB
Document 1% · 11.0 KiB
Other 0% · 1.3 KiB
~26.1 KiB of savings available
Remove unused JavaScript: 26.1 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 21 resources | 835.4 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+JavaScript BlockingNo render-blocking JS or document.write usage detectedPASS
JavaScript Blocking
No render-blocking JS or document.write usage detected
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
CSS Performance Depth
No CSS performance depth issues detected
No CSS performance depth issues detected
Info::
No CSS performance depth issues 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: Cloudflare
Network Waterfall21 requests over 3519msINFO
Network Waterfall
21 requests over 3519ms
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
20% of JavaScript execution is third-party
First-party Third-party 477ms · 11KB · €5/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 377ms | 0 KB | — | €4/mo | Costly |
static.cloudflareinsights.com static.cloudflareinsights.com | Other | 100ms | 11 KB | — | €1/mo | Optional |
Unattributable
Other
Execution 377ms
Transfer 0 KB
Monthly Cost €4/mo
static.cloudflareinsights.com
Other
Execution 100ms
Transfer 11 KB
Monthly Cost €1/mo
These scripts may cost more than they're worth
- Unattributable adds 377ms and costs ~€4/month
Unattributable takes 377ms 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
Image Optimization1 images, 641 KB total, 0 KB wastedINFO
Image Optimization
1 images, 641 KB total, 0 KB wasted
Image Optimization Audit
Total Images
1
Total Size
641 KB
1 missing alt text
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.