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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

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
90
GRADE
A
FIX
2
REVIEW
5
PASS
16
INFO
3

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
82
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
88
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
73
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.93 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

4.45 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

86 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.

2.80 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.

4.45 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 s
Checks
26
16 PASS 5 REVIEW 2 FIX
D
Third-Party Impact
Action
89% third-party, 0 ms blocking
FIX
89% third-party, 0 ms blocking
Warning::
Third-party code accounts for 89% of page weight (623.9 KiB of 698.6 KiB)
Info::
Third-party blocking time is low (0 ms)
89%
First-party Third-party
D
HTTP Caching
Action
no-store (uncacheable)
FIX
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

DirectiveValueMeaning
no-store—Never cache this response
must-revalidate—Must recheck with server after expiry
no-cache—Cache but always revalidate first
C
JS Execution Cost
Action
1086ms total JS execution
REVIEW
1086ms total JS execution
Warning::
https://insightcenter.b2clogin.com/insightcenter.o...: 599ms CPU time
Info::
Unattributable: 224ms CPU time
Info::
https://js.monitor.azure.com/scripts/b/ai.2.min.js: 152ms CPU time
Info::
https://az416426.vo.msecnd.net/scripts/a/ai.0.js: 112ms CPU time
Info::
Third-party scripts: 263ms (24% of total)

Main Thread Breakdown

Script Evaluation 42% Other 27% Style & Layout 18% Script Parsing & Compilation 7% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
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%3D599ms251ms45ms1st
Unattributable224ms6ms0ms1st
https://js.monitor.azure.com/scripts/b/ai.2.min.js152ms126ms13ms3rd
https://az416426.vo.msecnd.net/scripts/a/ai.0.js112ms77ms14ms3rd
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
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.
B
Compression Algorithm
Main response uses gzip; brotli would be ~20% smaller
REVIEW
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.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
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.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
699 KB transferred, 20 requests
PASS
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 / 2.4 MB budget
699 KB transferred
20 requests
0.14 g CO2 per page load
Images 378.5 KiB 54%
Other 161.4 KiB 23%
HTML 74.0 KiB 11%
JavaScript 67.9 KiB 10%
Other 15.4 KiB 2%
CSS 1.2 KiB 0%
Fonts 239 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A
Image Optimization
2 images, 0 KB saveable
PASS
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.
2 images 378 KB
0 oversized -0 KB
2 legacy format
1 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

A+
Font Loading
8 fonts (0 KB)
PASS
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)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.9 s LCP 4.4 shttps://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff2380F54_2_0.woff2 https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff2 — 0 B — 327 ms — font-display: swaphttps://insightcenter.stryker.com/assets/fonts/380F54_0_0.woff2380F54_0_0.woff2 https://insightcenter.stryker.com/assets/fonts/380F54_0_0.woff2 — 0 B — 333 ms — font-display: swaphttps://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff2380F54_2_0.woff2 https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff2 — 0 B — 597 ms — font-display: swaphttps://insightcenter.stryker.com/assets/fonts/380F54_1_0.woff2380F54_1_0.woff2 https://insightcenter.stryker.com/assets/fonts/380F54_1_0.woff2 — 0 B — 333 ms — font-display: swaphttps://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff380F54_2_0.woff https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff — 0 B — 310 ms — font-display: swaphttps://insightcenter.stryker.com/assets/fonts/380F54_1_0.woff380F54_1_0.woff https://insightcenter.stryker.com/assets/fonts/380F54_1_0.woff — 0 B — 293 ms — font-display: swaphttps://insightcenter.b2clogin.com/insightcenter.onmicrosoft.com/b2c_1a_ss_si/oauth2/v2.0/~src/assets/fonts/380F54_0_0.woff380F54_0_0.woff https://insightcenter.b2clogin.com/insightcenter.onmicrosoft.com/b2c_1a_ss_si/oauth2/v2.0/~src/assets/fonts/380F54_0_0.woff — 239 B — 76 ms — font-display: swaphttps://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff380F54_2_0.woff https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff — 0 B — 311 ms — font-display: swap
380F54_2_0.woff2 woff2 swap
Size 0 KB
Load time 327 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
380F54_0_0.woff2 woff2 swap
Size 0 KB
Load time 333 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
380F54_2_0.woff2 woff2 swap
Size 0 KB
Load time 597 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
380F54_1_0.woff2 woff2 swap
Size 0 KB
Load time 333 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
380F54_2_0.woff woff swap
Size 0 KB
Load time 310 ms
Start 1.5 s
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
380F54_1_0.woff woff swap
Size 0 KB
Load time 293 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 76 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 311 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 Bundles
2 scripts, 0 KB unused
PASS
2 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://az416426.vo.msecnd.net/scripts/a/ai.0.js22 KB—✓3rd
https://js.monitor.azure.com/scripts/b/ai.2.min.js46 KB—✓3rd
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A+
Resource Hints
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
PASS
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 Intelligence
2 server-response signal(s) detected
PASS
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 Inventory
20 resources · 699 KB · 0 KB savings available
PASS
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 · 698.6 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% · 1.2 KiB
Other 0% · 801 B
Font 0% · 239 B
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
1 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
Network Waterfall
20 requests over 2072ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s FCP 1.9 s LCP 4.4 shttps://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/insightcenter.onmicrosoft.com/b2c_... 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 — 200 — 74.0 KiB — 591 ms — http/1.1https://cdn.hc.stryker.com/b2c/templates/en-US/insightcenter/home-realm.htmlcdn.hc.stryker.com/b2c/templates/en... https://cdn.hc.stryker.com/b2c/templates/en-US/insightcenter/home-realm.html — 200 — 160.7 KiB — 504 ms — h2https://az416426.vo.msecnd.net/scripts/a/ai.0.jsaz416426.vo.msecnd.net/scripts/a/ai... https://az416426.vo.msecnd.net/scripts/a/ai.0.js — 200 — 21.6 KiB — 25 ms — h2https://dc.services.visualstudio.com/v2/trackdc.services.visualstudio.com/v2/tra... https://dc.services.visualstudio.com/v2/track — 204 — 0 B — 126 ms — h2https://dc.services.visualstudio.com/v2/trackdc.services.visualstudio.com/v2/tra... https://dc.services.visualstudio.com/v2/track — 200 — 200 B — 174 ms — h2https://insightcenter.stryker.com/assets/images/logo.pnginsightcenter.stryker.com/assets/im... https://insightcenter.stryker.com/assets/images/logo.png — 200 — 2.3 KiB — 303 ms — h2https://insightcenter.stryker.com/assets/images/home.pnginsightcenter.stryker.com/assets/im... https://insightcenter.stryker.com/assets/images/home.png — 200 — 376.1 KiB — 629 ms — h2https://fonts.googleapis.com/css?family=Noto+Sans:400fonts.googleapis.com/css?family=Not... https://fonts.googleapis.com/css?family=Noto+Sans:400 — 200 — 1.2 KiB — 53 ms — h2https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff2insightcenter.stryker.com/assets/fo... https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff2 — -1 — 0 B — 327 ms — https://insightcenter.stryker.com/assets/fonts/380F54_0_0.woff2insightcenter.stryker.com/assets/fo... https://insightcenter.stryker.com/assets/fonts/380F54_0_0.woff2 — -1 — 0 B — 333 ms — https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff2insightcenter.stryker.com/assets/fo... https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff2 — -1 — 0 B — 597 ms — https://insightcenter.stryker.com/assets/fonts/380F54_1_0.woff2insightcenter.stryker.com/assets/fo... https://insightcenter.stryker.com/assets/fonts/380F54_1_0.woff2 — -1 — 0 B — 333 ms — https://insightcenter.stryker.com/favicon.icoinsightcenter.stryker.com/favicon.i... https://insightcenter.stryker.com/favicon.ico — 200 — 15.4 KiB — 281 ms — h2https://js.monitor.azure.com/scripts/b/ai.2.min.jsjs.monitor.azure.com/scripts/b/ai.2... https://js.monitor.azure.com/scripts/b/ai.2.min.js — 200 — 46.2 KiB — 79 ms — h2https://insightcenter.b2clogin.com/insightcenter.onmicrosoft.com/B2C_1A_SS_Si/client/perftrace?tx=StateProperties=eyJUSUQiOiJlNTAxZDJmNi1mMzFmLTRmNWItODg4Mi01YjJiNDk2MzljZTYifQ&p=B2C_1A_SS_Si/insightcenter.onmicrosoft.com/B2C_... https://insightcenter.b2clogin.com/insightcenter.onmicrosoft.com/B2C_1A_SS_Si/client/perftrace?tx=StateProperties=eyJUSUQiOiJlNTAxZDJmNi1mMzFmLTRmNWItODg4Mi01YjJiNDk2MzljZTYifQ&p=B2C_1A_SS_Si — 200 — 447 B — 227 ms — http/1.1https://dc.services.visualstudio.com/v2/trackdc.services.visualstudio.com/v2/tra... https://dc.services.visualstudio.com/v2/track — 200 — 154 B — 195 ms — h2https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woffinsightcenter.stryker.com/assets/fo... https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff — -1 — 0 B — 310 ms — https://insightcenter.stryker.com/assets/fonts/380F54_1_0.woffinsightcenter.stryker.com/assets/fo... https://insightcenter.stryker.com/assets/fonts/380F54_1_0.woff — -1 — 0 B — 293 ms — https://insightcenter.b2clogin.com/insightcenter.onmicrosoft.com/b2c_1a_ss_si/oauth2/v2.0/~src/assets/fonts/380F54_0_0.woff/insightcenter.onmicrosoft.com/b2c_... https://insightcenter.b2clogin.com/insightcenter.onmicrosoft.com/b2c_1a_ss_si/oauth2/v2.0/~src/assets/fonts/380F54_0_0.woff — 404 — 239 B — 76 ms — http/1.1https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woffinsightcenter.stryker.com/assets/fo... https://insightcenter.stryker.com/assets/fonts/380F54_2_0.woff — -1 — 0 B — 311 ms —
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
24% of JavaScript execution is third-party
First-party Third-party 263ms · 68KB · $3/mo
js.monitor.azure.com
Other
Optional
Execution 152ms
Transfer 46 KB
Monthly Cost $2/mo
az416426.vo.msecnd.net
Other
Optional
Execution 112ms
Transfer 22 KB
Monthly Cost $1/mo

How third-party costs are calculated

Image Optimization
2 images, 0 KB total, 0 KB wasted
INFO

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.

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