https://uptimerobot.com
Performance
· 24 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
93
GRADE
A
FIX
1
REVIEW
3
PASS
16
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
80
96
100
92
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.30 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
4.21 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
45 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.
4.98 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.
4.21 s
Page Load Progression
534 ms 1.1 s 1.6 s 2.1 s
2.7 s
3.2 s
3.7 s
4.3 sChecks
2416 PASS 3 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: private, no-cache, no-store, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
private, no-cache, no-store, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| 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
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
16 images 138 KB
0 oversized -0 KB
13 legacy format
1 missing dimensions CLS risk
Set explicit width and height to prevent CLS.
Why this matters
Performance issues directly impact user engagement and conversion rates.
CJS Execution CostAction1358ms total JS executionREVIEW
JS Execution Cost
Action1358ms total JS execution
1358ms total JS execution
Warning::
https://uptimerobot.com/_astro/page.Cyipsgv2.js: 485ms CPU time
Warning::
Unattributable: 350ms CPU time
Warning::
https://uptimerobot.com/: 265ms CPU time
Info::
https://uptimerobot.com/_shared/v9/scripts.js: 189ms CPU time
Info::
https://uptimerobot.com/_astro/carousels.Cac4_eZs....: 69ms CPU time
Info::
Third-party scripts: 350ms (26% of total)
Main Thread Breakdown
Other 35% Style & Layout 27% Script Evaluation 21% Rendering 12% Parse HTML & CSS 3%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://uptimerobot.com/_astro/page.Cyipsgv2.js | 485ms | 151ms | 0ms | 1st |
| Unattributable | 350ms | 58ms | 0ms | 3rd |
| https://uptimerobot.com/ | 265ms | 10ms | 13ms | 1st |
| https://uptimerobot.com/_shared/v9/scripts.js | 189ms | 4ms | 1ms | 1st |
| https://uptimerobot.com/_astro/carousels.Cac4_eZs.js | 69ms | 40ms | 1ms | 1st |
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.
A+Page Weight Budget517 KB transferred, 38 requestsPASS
Page Weight Budget
517 KB transferred, 38 requests
517 KB transferred, 38 requests
Info::
Page weighs 1.0 MB (517 KB transferred)
Info::
38 HTTP requests
Info::
Estimated 0.11 g CO2 per page load
517 KB transferred
38 requests
0.11 g CO2 per page load
Fonts 186.1 KiB 36%
Images 137.5 KiB 27%
JavaScript 104.3 KiB 20%
HTML 36.6 KiB 7%
Other 31.5 KiB 6%
CSS 20.3 KiB 4%
Other 671 B 0%
Other 300 B 0%
0 2.4 MB 4.9 MB
Under budget
A+Third-Party Impact2% third-party, 0 ms blockingPASS
Third-Party Impact
2% third-party, 0 ms blocking
2% third-party, 0 ms blocking
Info::
Third-party code accounts for 2% of page weight (11.0 KiB of 517.1 KiB)
Info::
Third-party blocking time is low (0 ms)
98%
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+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)
plus-jakarta-sans-latin... woff2 swap
Size 27 KB
Load time 114 ms
Start 258 ms
Risk FOUT — text flashes from fallback to web font
inter-latin-wght-normal... woff2 swap
Size 48 KB
Load time 102 ms
Start 483 ms
Risk FOUT — text flashes from fallback to web font
plus-jakarta-sans-latin... woff2 swap
Size 27 KB
Load time 98 ms
Start 483 ms
Risk FOUT — text flashes from fallback to web font
inter-latin-ext-wght-no... woff2 swap
Size 84 KB
Load time 112 ms
Start 483 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 Bundles10 scripts, 0 KB unusedPASS
JS Bundles
10 scripts, 0 KB unused
10 scripts, 0 KB unused
0 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://uptimerobot.com/_astro/page.Cyipsgv2.js | 36 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/GetQuoteModal.astro_astro_type_script_index_0_lang.cIsvtGIk.js | 3 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/BaseLayout.astro_astro_type_script_index_0_lang.BVxzchVP.js | 1 KB | — | ✓ | 1st |
| https://uptimerobot.com/_shared/v9/scripts.js | 2 KB | — | ✓ | 1st |
| https://static.cloudflareinsights.com/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da1771523124516 | 11 KB | — | ✓ | 3rd |
| https://uptimerobot.com/_astro/exports.DRBP02gG.js | 13 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/idle-import.BKW5DTej.js | 2 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/_service_.astro_astro_type_script_index_0_lang.Bl5Rosgf.js | 1 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/carousels.Cac4_eZs.js | 26 KB | — | ✓ | 1st |
| https://uptimerobot.com/_astro/scrollreveal-init.CjcGW2OB.js | 8 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
AResource Hints2 hints, 0 missing preconnectsPASS
Resource Hints
2 hints, 0 missing preconnects
2 hints, 0 missing preconnects
Warning::
1 font preload(s) missing `crossorigin` -- font will be downloaded twice
Fonts are always fetched as crossorigin=anonymous; a preload without the attribute creates a different cache key, so the browser refetches when the actual font request happens. Sample: /_shared/v9/fonts/plus-jakarta-sans-latin-wght-normal.woff2. Add `crossorigin` (or `crossorigin="anonymous"`) to each preload.
Info::
Page uses 2 resource hint(s)
Current Resource Hints
preconnect 1
preload 1
dns-prefetch—
prefetch—
2 resource hints configured
Fonts are always fetched as crossorigin=anonymous; a preload without the attribute creates a different cache key, so the browser refetches when the actual font request happens. Sample: /_shared/v9/fonts/plus-jakarta-sans-latin-wght-normal.woff2. Add `crossorigin` (or `crossorigin="anonymous"`) to each preload.
Why this matters
Performance issues directly impact user engagement and conversion rates.
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 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: private, no-cache, no-store, must-revalidate
A+Server-Timing Observability4 Server-Timing entries advertisedPASS
Server-Timing Observability
4 Server-Timing entries advertised
4 Server-Timing entries advertised
Info::
Server-Timing header advertises 4 timing entries
A+Page Weight Inventory38 resources · 517 KB · 0 KB savings availablePASS
Page Weight Inventory
38 resources · 517 KB · 0 KB savings available
38 resources · 517 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 517 KB
Info::
3 third-party resources (2% of weight)
38 resources · 517.1 KiB · 3 third-party Within 1MB page-weight target
Font 36% · 186.1 KiB
Image 33% · 168.5 KiB
JavaScript 20% · 104.3 KiB
Document 7% · 36.6 KiB
CSS 4% · 20.3 KiB
Other 0% · 1.4 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 38 resources | 517.1 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: Cloudflare
Network Waterfall38 requests over 2457msINFO
Network Waterfall
38 requests over 2457ms
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
26% of JavaScript execution is third-party
First-party Third-party 350ms · 0KB · €4/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 350ms | 0 KB | — | €4/mo | Costly |
Unattributable
Other
Execution 350ms
Transfer 0 KB
Monthly Cost €4/mo
These scripts may cost more than they're worth
- Unattributable adds 350ms and costs ~€4/month
Unattributable takes 350ms 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)
1917 ms
84% good
INP (p75)
85 ms
91% good
CLS (p75)
0.000
88% good
FCP (p75)
1684 ms
TTFB (p75)
714 ms
This origin passes Core Web Vitals assessment
Image Optimization34 images, 328 KB total, 248 KB wastedINFO
Image Optimization
34 images, 328 KB total, 248 KB wasted
Image Optimization Audit
Total Images
34
Total Size
328 KB
Oversized
2
Wasted
248 KB
1 missing alt text 11 missing dimensions 2 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.