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https://www.okta.com

Performance

· 16 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
76
GRADE
C
FIX
3
REVIEW
1
PASS
10
INFO
2

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

Mobile Desktop
29
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
82
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
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.

5.81 s

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

13.77 s

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

2.42 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.061

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

7.21 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.

13.82 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
16
10 PASS 1 REVIEW 3 FIX
F
Page Weight Budget
Action
3.0 MB transferred, 79 requests
FIX
3.0 MB transferred, 79 requests
Warning::
Page weighs 7.2 MB (3.0 MB transferred)
Warning::
Images are 1.6 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.6 MB
Warning::
JavaScript is 1.0 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.0 MB
Info::
79 HTTP requests
Info::
Estimated 0.62 g CO2 per page load
3.0 MB / 2.4 MB budget
3.0 MB transferred
79 requests
0.62 g CO2 per page load
Images 1.6 MiB 53%
JavaScript 1.0 MiB 34%
CSS 163.0 KiB 5%
Fonts 128.7 KiB 4%
Other 49.9 KiB 2%
HTML 39.6 KiB 1%
Other 4.7 KiB 0%
Other 3.8 KiB 0%
Other 318 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Why this matters

JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.

Source: web.dev

F
JS Execution Cost
Action
6652ms total JS execution
FIX
6652ms total JS execution
Warning::
https://www.okta.com/etc.clientlibs/okta-www/clien...: 1762ms CPU time
Warning::
Unattributable: 921ms CPU time
Warning::
https://www.okta.com/: 812ms CPU time
Warning::
https://www.okta.com/etc/cloudsettings.kernel.js/c...: 691ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-KXM...: 638ms CPU time
Info::
Third-party scripts: 2994ms (45% of total)

Main Thread Breakdown

Script Evaluation 44% Other 20% Style & Layout 16% Script Parsing & Compilation 11% Parse HTML & CSS 5% Rendering 3%
ScriptTotalScriptingParse/CompileParty
https://www.okta.com/etc.clientlibs/okta-www/clientlibs/clientlib-site.lc-e5bf995b992cb5d886f41abd51663cff-lc.min.js1762ms856ms275ms1st
Unattributable921ms18ms0ms3rd
https://www.okta.com/812ms37ms12ms1st
https://www.okta.com/etc/cloudsettings.kernel.js/conf/okta-www/settings/cloudsettings/okta-www/contexthub691ms255ms32ms1st
https://www.googletagmanager.com/gtm.js?id=GTM-KXMLV58638ms472ms134ms3rd
https://assets.adobedtm.com/6bb3f7663515/a88f122425e8/launch-58767bf1d43d.min.js528ms441ms56ms3rd
https://cdn.cookielaw.org/scripttemplates/202503.1.0/otBannerSdk.js439ms256ms88ms3rd
https://www.okta.com/etc.clientlibs/okta-www/clientlibs/clientlib-homepage.lc-491aa09f43b0feb6bc82d7eaf10f6343-lc.min.js393ms185ms8ms1st
https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015227ms209ms3ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5VD332L9&gtm=4e6460186ms93ms90ms3rd

Showing top 10 of 11 scripts

F
JS Bundles
Action
20 scripts, 562 KB unused
FIX
20 scripts, 562 KB unused
Warning::
https://www.okta.com/etc.clientlibs/okta-www/clien...: 289 KB unused (82%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-KXM...: 81 KB unused (46%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-5VD...: 65 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202503.1...: 63 KB unused (54%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://assets.adobedtm.com/6bb3f7663515/a88f12242...: 42 KB unused (47%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 562 KB
562 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.okta.com/etc.clientlibs/okta-www/clientlibs/clientlib-site.lc-e5bf995b992cb5d886f41abd51663cff-lc.min.js353 KB289 KB (82%)✓1st
https://www.googletagmanager.com/gtm.js?id=GTM-KXMLV58177 KB81 KB (46%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-5VD332L9&gtm=4e6460152 KB65 KB (43%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202503.1.0/otBannerSdk.js116 KB63 KB (54%)✓3rd
https://assets.adobedtm.com/6bb3f7663515/a88f122425e8/launch-58767bf1d43d.min.js91 KB42 KB (47%)✓3rd
https://www.okta.com/etc/cloudsettings.kernel.js/conf/okta-www/settings/cloudsettings/okta-www/contexthub53 KB22 KB (40%)✓1st
https://www.okta.com/etc.clientlibs/okta-www/clientlibs/clientlib-base.lc-bd50a42c40ecb0a1bcd1c59354e61ec8-lc.min.js9 KB—✓1st
https://www.okta.com/etc.clientlibs/core/wcm/components/commons/datalayer/v2/clientlibs/core.wcm.components.commons.datalayer.v2.lc-1e0136bad0acfb78be509234578e44f9-lc.min.js1 KB—✓1st
https://www.okta.com/etc.clientlibs/core/wcm/components/commons/site/clientlibs/container.lc-0a6aff292f5cc42142779cde92054524-lc.min.js1 KB—✓1st
https://www.okta.com/etc.clientlibs/clientlibs/granite/jquery/granite/csrf.lc-652a558c3774088b61b0530c184710d1-lc.min.js2 KB—✓1st

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

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

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

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

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

C
Image Optimization
Action
38 images, 0 KB saveable
REVIEW
38 images, 0 KB saveable
Warning::
https://www.okta.com/adobe/dynamicmedia/deliver/dm... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.okta.com/adobe/dynamicmedia/deliver/dm... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.okta.com/adobe/dynamicmedia/deliver/dm... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://www.okta.com/adobe/dynamicmedia/deliver/dm... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
38 images 1.6 MB
0 oversized -0 KB
24 legacy format
4 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

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

A
Third-Party Impact
25% third-party, 0 ms blocking
PASS
25% third-party, 0 ms blocking
Info::
Third-party code accounts for 25% of page weight (754.9 KiB of 3.0 MiB)
Info::
Third-party blocking time is low (0 ms)
75%
25%
First-party Third-party
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+
Font Loading
3 fonts (129 KB)
PASS
3 fonts (129 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

129 KB total

Render-blocking

0

of 3

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 5.8 s LCP 13.8 shttps://www.okta.com/etc.clientlibs/okta-www/clientlibs/clientlib-site/resources/fonts/Aeonik-Regular.woff2Aeonik-Regular.woff2 https://www.okta.com/etc.clientlibs/okta-www/clientlibs/clientlib-site/resources/fonts/Aeonik-Regular.woff2 — 42.0 KiB — 0 ms — font-display: swaphttps://www.okta.com/etc.clientlibs/okta-www/clientlibs/clientlib-site/resources/fonts/Aeonik-Medium.woff2Aeonik-Medium.woff2 https://www.okta.com/etc.clientlibs/okta-www/clientlibs/clientlib-site/resources/fonts/Aeonik-Medium.woff2 — 43.8 KiB — 0 ms — font-display: swaphttps://use.typekit.net/af/33a252/00000000000000007735a11a/31/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3l https://use.typekit.net/af/33a252/00000000000000007735a11a/31/l?primer=7cdcb44be4a7db8877ffa5c0007b8dd865b3bbc383831fe2ea177f62257a9191&fvd=n4&v=3 — 42.9 KiB — 0 ms — font-display: swap
Aeonik-Regular.woff2 woff2 swap
Size 42 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Aeonik-Medium.woff2 woff2 swap
Size 44 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
l woff2 swap
Size 43 KB
Load time 0 ms
Start 0 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+
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
2 hints, 0 missing preconnects
PASS
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)

Current Resource Hints

preconnect
2
preload
—
dns-prefetch
—
prefetch
—

2 resource hints configured

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+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

A+
HTTP Caching
max-age=300 (5 minutes)
PASS
max-age=300 (5 minutes)
Info::
Cache-Control header is set
Got: max-age=300,s-maxage=300,stale-while-revalidate=1800,stale-if-error=1800,public
Info::
Effective TTL: 5 minutes (max-age=300)
Info::
CDN TTL: 5 minutes (s-maxage=300)
Info::
Last-Modified header present
Cache-Control

max-age=300,s-maxage=300,stale-while-revalidate=1800,stale-if-error=1800,public

DirectiveValueMeaning
max-age300Cache for 5 minutes
s-maxage300CDN caches for 5 minutes
stale-while-revalidate1800Serve stale for 30 minutes while fetching fresh
stale-if-error1800
public—Any cache may store this response
Effective TTL: 300 seconds
Network Waterfall
79 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
45% of JavaScript execution is third-party
First-party Third-party 2994ms · 552KB · $40/mo
Unattributable
Other
Costly
Execution 921ms
Transfer 0 KB
Monthly Cost $12/mo
Google Tag Manager
Tag Manager
Costly
Execution 638ms
Transfer 177 KB
Unused 46%
Monthly Cost $8/mo
assets.adobedtm.com
Other
Costly
Execution 528ms
Transfer 91 KB
Unused 47%
Monthly Cost $7/mo
OneTrust
Consent
Essential
Execution 439ms
Transfer 116 KB
Unused 54%
Monthly Cost $6/mo
static.cloudflareinsights.com
Other
Costly
Execution 227ms
Transfer 7 KB
Monthly Cost $3/mo
Google Tag Manager
Tag Manager
Optional
Execution 186ms
Transfer 152 KB
Unused 43%
Monthly Cost $2/mo
OneTrust
Consent
Essential
Execution 54ms
Transfer 9 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 921ms and costs ~$12/month
  • Google Tag Manager adds 638ms and costs ~$8/month
  • assets.adobedtm.com adds 528ms and costs ~$7/month
  • static.cloudflareinsights.com adds 227ms and costs ~$3/month

45% of JavaScript execution time comes from third-party scripts.

Why this matters

Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.

Learn more ▾

Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.

Source: web.dev / HTTP Archive Web Almanac

Unattributable takes 921ms 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

Google Tag Manager takes 638ms 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

assets.adobedtm.com takes 528ms 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

54% of OneTrust's code is unused. The script may be loading features you don't use.

Why this matters

Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.

Source: web.dev

static.cloudflareinsights.com takes 227ms 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

How third-party costs are calculated

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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