https://insightcenter.b2clogin.com/insightcenter.onmicrosoft.com/b2c_1a_ss_si/oauth2/v2.0/authorize?client_id=b1cf1b94-be82-4e12-a3ef-23c9154c772b&scope=https%3A%2F%2Finsightcenter.onmicrosoft.com%2Feservice-api-prd%2Fuser_impersonation%20openid%20profile%20offline_access&redirect_uri=https%3A%2F%2Fservice.stryker.com%2FloginSSO&client-request-id=019eb605-6af2-7793-98db-bf244f7a8554&response_mode=fragment&response_type=code&x-client-SKU=msal.js.browser&x-client-VER=3.30.0&client_info=1&code_challenge=BRub9pEd4Ln2tN_VOD8VCubek0OyYIqUDzff1E1zHMo&code_challenge_method=S256&nonce=019eb605-6af5-7490-9771-b2ecca73ccf4&state=eyJpZCI6IjAxOWViNjA1LTZhZjQtN2ZhZC1iZjQ3LWMzYmE1MmVjYjZiNyIsIm1ldGEiOnsiaW50ZXJhY3Rpb25UeXBlIjoicmVkaXJlY3QifX0%3D
Performance
· 21 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
90
GRADE
A
FIX
2
REVIEW
5
PASS
12
INFO
2
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
93
92
77
73
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
815 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.54 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.
0.050
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.23 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.
1.54 s
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
2112 PASS 5 REVIEW 2 FIX
DThird-Party ImpactAction89% third-party, 0 ms blockingFIX
Third-Party Impact
Action89% third-party, 0 ms blocking
89% third-party, 0 ms blocking
Warning::
Third-party code accounts for 89% of page weight (624.1 KiB of 698.8 KiB)
Info::
Third-party blocking time is low (0 ms)
89%
First-party Third-party
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-store, must-revalidate, no-cache
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
no-store, must-revalidate, no-cache
| Directive | Value | Meaning |
|---|---|---|
| no-store | — | Never cache this response |
| must-revalidate | — | Must recheck with server after expiry |
| no-cache | — | Cache but always revalidate first |
BImage Optimization2 images, 0 KB saveableREVIEW
Image Optimization
2 images, 0 KB saveable
2 images, 0 KB saveable
Warning::
https://insightcenter.stryker.com/assets/images/lo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://insightcenter.stryker.com/assets/images/ho... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
2 images 378 KB
0 oversized -0 KB
2 legacy format
2 missing dimensions CLS risk
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
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.
BCompression AlgorithmMain response uses gzip; brotli would be ~20% smallerREVIEW
Compression Algorithm
Main response uses gzip; brotli would be ~20% smaller
Main response uses gzip; brotli would be ~20% smaller
Info::
Main HTML response uses gzip (brotli would be ~20% smaller)
All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.
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.
CGreen HostingActionWhether the site is served from green-energy infrastructureREVIEW
Green Hosting
ActionWhether the site is served from green-energy infrastructure
Green Hosting
No green hosting detected
A+Page Weight Budget699 KB transferred, 20 requestsPASS
Page Weight Budget
699 KB transferred, 20 requests
699 KB transferred, 20 requests
Info::
Page weighs 940 KB (699 KB transferred)
Info::
20 HTTP requests
Info::
Estimated 0.14 g CO2 per page load
699 KB transferred
20 requests
0.14 g CO2 per page load
Images 378.5 KiB 54%
Other 161.5 KiB 23%
HTML 74.1 KiB 11%
JavaScript 67.9 KiB 10%
Other 15.4 KiB 2%
CSS 1.3 KiB 0%
Fonts 239 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
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 Cost202ms total JS executionPASS
JS Execution Cost
202ms total JS execution
202ms total JS execution
Info::
https://insightcenter.b2clogin.com/insightcenter.o...: 148ms CPU time
Info::
Unattributable: 54ms CPU time
Main Thread Breakdown
Script Evaluation 42% Other 27% Style & Layout 18% Script Parsing & Compilation 7% Parse HTML & CSS 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://insightcenter.b2clogin.com/insightcenter.onmicrosoft.com/b2c_1a_ss_si/oauth2/v2.0/authorize?client_id=b1cf1b94-be82-4e12-a3ef-23c9154c772b&scope=https%3A%2F%2Finsightcenter.onmicrosoft.com%2Feservice-api-prd%2Fuser_impersonation%20openid%20profile%20offline_access&redirect_uri=https%3A%2F%2Fservice.stryker.com%2FloginSSO&client-request-id=019eb605-6af2-7793-98db-bf244f7a8554&response_mode=fragment&response_type=code&x-client-SKU=msal.js.browser&x-client-VER=3.30.0&client_info=1&code_challenge=BRub9pEd4Ln2tN_VOD8VCubek0OyYIqUDzff1E1zHMo&code_challenge_method=S256&nonce=019eb605-6af5-7490-9771-b2ecca73ccf4&state=eyJpZCI6IjAxOWViNjA1LTZhZjQtN2ZhZC1iZjQ3LWMzYmE1MmVjYjZiNyIsIm1ldGEiOnsiaW50ZXJhY3Rpb25UeXBlIjoicmVkaXJlY3QifX0%3D | 148ms | 57ms | 12ms | 1st |
| Unattributable | 54ms | 2ms | 0ms | 1st |
A+Font Loading8 fonts (0 KB)PASS
Font Loading
8 fonts (0 KB)
8 fonts (0 KB)
Info::
8 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
8
0 KB total
Render-blocking
0
of 8
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
380F54_2_0.woff2 woff2 swap
Size 0 KB
Load time 349 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
380F54_0_0.woff2 woff2 swap
Size 0 KB
Load time 351 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
380F54_2_0.woff2 woff2 swap
Size 0 KB
Load time 634 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
380F54_1_0.woff2 woff2 swap
Size 0 KB
Load time 327 ms
Start 1.1 s
Risk FOUT — text flashes from fallback to web font
380F54_1_0.woff woff swap
Size 0 KB
Load time 281 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
- Convert to woff2 for ~30% smaller file size
380F54_2_0.woff woff swap
Size 0 KB
Load time 278 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
- Convert to woff2 for ~30% smaller file size
380F54_0_0.woff woff swap
Size 0 KB
Load time 79 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
- Convert to woff2 for ~30% smaller file size
380F54_2_0.woff woff swap
Size 0 KB
Load time 282 ms
Start 1.8 s
Risk FOUT — text flashes from fallback to web font
- Convert to woff2 for ~30% smaller file size
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://az416426.vo.msecnd.net/scripts/a/ai.0.js | 22 KB | — | ✓ | 3rd |
| https://js.monitor.azure.com/scripts/b/ai.2.min.js | 46 KB | — | ✓ | 3rd |
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+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-store, must-revalidate, no-cache
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.
APage Weight Inventory20 resources · 699 KB · 0 KB savings availablePASS
Page Weight Inventory
20 resources · 699 KB · 0 KB savings available
20 resources · 699 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 699 KB
Warning::
17 third-party resources (89% of weight)
Info::
1 resources over 200KB
20 resources · 698.8 KiB · 17 third-party Within 1MB page-weight target
Image 56% · 393.9 KiB
Document 34% · 234.7 KiB
JavaScript 10% · 67.9 KiB
CSS 0% · 1.3 KiB
Other 0% · 801 B
Font 0% · 239 B
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 20 resources | 698.8 KiB | ||||||
Network Waterfall20 requests over 2054msINFO
Network Waterfall
20 requests over 2054ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization2 images, 0 KB total, 0 KB wastedINFO
Image Optimization
2 images, 0 KB total, 0 KB wasted
Image Optimization Audit
Total Images
2
Total Size
0 KB
Oversized
2
2 missing alt text 2 missing dimensions
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.