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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
86
GRADE
B
FIX
2
REVIEW
4
PASS
7
INFO
2

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

Mobile Desktop
91
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
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.

1.36 s

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

1.42 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.

0.000

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

1.36 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.

1.42 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
15
7 PASS 4 REVIEW 2 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (937.5 KiB of 937.6 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
Browsers will use heuristic caching, which can be unpredictable. Set explicit cache headers.

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

B
Image Optimization
5 images, 0 KB saveable
REVIEW
5 images, 0 KB saveable
Warning::
https://static.cognitoforms.com/website/assets/doc... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://static.cognitoforms.com/website/assets/int... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
5 images 213 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

B
JS Execution Cost
772ms total JS execution
REVIEW
772ms total JS execution
Warning::
https://www.cognitoforms.com/: 467ms CPU time
Info::
https://static.cognitoforms.com/website/assets/hr-...: 106ms CPU time
Info::
Unattributable: 105ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-THVC...: 94ms CPU time
Warning::
Third-party scripts: 772ms (100% of total)

Main Thread Breakdown

Other 30% Script Evaluation 30% Style & Layout 21% Rendering 12%
ScriptTotalScriptingParse/CompileParty
https://www.cognitoforms.com/467ms24ms1ms3rd
https://static.cognitoforms.com/website/assets/hr-forms.astro_astro_type_script_index_0_lang.B9mBuz8r.js106ms87ms0ms3rd
Unattributable105ms8ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-THVC5NH1WF94ms76ms14ms3rd
B
JS Bundles
45 scripts, 134 KB unused
REVIEW
45 scripts, 134 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-THVC...: 58 KB unused (34%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.cognitoforms.com/website/assets/hr-...: 45 KB unused (57%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://static.cognitoforms.com/website/assets/ind...: 31 KB unused (83%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 134 KB
134 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-THVC5NH1WF172 KB58 KB (34%)✓3rd
https://static.cognitoforms.com/website/assets/hr-forms.astro_astro_type_script_index_0_lang.B9mBuz8r.js80 KB45 KB (57%)✓3rd
https://static.cognitoforms.com/website/assets/index.CNJKat1T.js37 KB31 KB (83%)✓3rd
https://static.cognitoforms.com/website/assets/Dialog.Do94im1u.js2 KB—✓3rd
https://bat.bing.com/bat.js15 KB—✓3rd
https://static.cognitoforms.com/website/assets/CognitoForm.D8JVluae.js2 KB—✓3rd
https://static.cognitoforms.com/website/assets/client.CjCdjC2Y.js1 KB—✓3rd
https://static.cognitoforms.com/website/assets/SupportChatWidget.CYqBjJYY.js25 KB—✓3rd
https://static.cognitoforms.com/website/assets/click-outside.D_NZgmK4.js1 KB—✓3rd
https://static.cognitoforms.com/website/assets/Inline.uylT4qF3.js12 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

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
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A
Page Weight Budget
938 KB transferred, 73 requests
PASS
938 KB transferred, 73 requests
Info::
Page weighs 3.3 MB (938 KB transferred)
Info::
73 HTTP requests
Info::
Estimated 0.19 g CO2 per page load
938 KB / 2.4 MB budget
938 KB transferred
73 requests
0.19 g CO2 per page load
JavaScript 437.6 KiB 47%
Images 212.9 KiB 23%
Other 99.7 KiB 11%
HTML 85.7 KiB 9%
Fonts 45.7 KiB 5%
Other 33.2 KiB 4%
CSS 19.5 KiB 2%
Other 2.0 KiB 0%
Other 807 B 0%
Other 561 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+
Font Loading
4 fonts (46 KB)
PASS
4 fonts (46 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

46 KB total

Render-blocking

0

of 4

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 1.4 s LCP 1.4 shttps://static.cognitoforms.com/fonts/gilroy/gilroy-light_basic-latin.woff2gilroy-light_basic-lati... https://static.cognitoforms.com/fonts/gilroy/gilroy-light_basic-latin.woff2 — 9.1 KiB — 24 ms — font-display: swaphttps://static.cognitoforms.com/fonts/gilroy/gilroy-extrabold_basic-latin.woff2gilroy-extrabold_basic-... https://static.cognitoforms.com/fonts/gilroy/gilroy-extrabold_basic-latin.woff2 — 9.0 KiB — 26 ms — font-display: swaphttps://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2S6uyw4BMUTPHjx4wXiWtFCc... https://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2 — 13.7 KiB — 28 ms — font-display: swaphttps://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2S6u9w4BMUTPHh6UVSwiPGQ3... https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2 — 13.9 KiB — 31 ms — font-display: swap
gilroy-light_basic-lati... woff2 swap
Size 9 KB
Load time 24 ms
Start 843 ms
Risk FOUT — text flashes from fallback to web font
gilroy-extrabold_basic-... woff2 swap
Size 9 KB
Load time 26 ms
Start 843 ms
Risk FOUT — text flashes from fallback to web font
S6uyw4BMUTPHjx4wXiWtFCc... woff2 swap
Size 14 KB
Load time 28 ms
Start 955 ms
Risk FOUT — text flashes from fallback to web font
S6u9w4BMUTPHh6UVSwiPGQ3... woff2 swap
Size 14 KB
Load time 31 ms
Start 956 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
Page Weight Inventory
73 resources · 938 KB · 134 KB savings available
PASS
73 resources · 938 KB · 134 KB savings available
Info::
Within 1MB page-weight target
Got: 938 KB
Info::
~134 KB of savings available
Warning::
72 third-party resources (100% of weight)
73 resources · 937.6 KiB · 72 third-party Within 1MB page-weight target
JavaScript 47% · 437.6 KiB
Image 26% · 246.0 KiB
Other 11% · 103.0 KiB
Document 9% · 85.8 KiB
Font 5% · 45.7 KiB
CSS 2% · 19.5 KiB

~133.6 KiB of savings available

Remove unused JavaScript: 133.6 KiB
Network Waterfall
73 requests over 1470ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 1.4 s LCP 1.4 shttps://cognitoforms.com// https://cognitoforms.com/ — 301 — 105 B — 294 ms — h2https://www.cognitoforms.com/www.cognitoforms.com/ https://www.cognitoforms.com/ — 200 — 85.7 KiB — 539 ms — h2https://static.cognitoforms.com/website/assets/_slug_.BXNOdUlm.cssstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/_slug_.BXNOdUlm.css — 200 — 14.2 KiB — 153 ms — h2https://static.cognitoforms.com/website/assets/favicons/manifest.webmanifeststatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/favicons/manifest.webmanifest — 200 — 807 B — 141 ms — h2https://static.cognitoforms.com/website/assets/index.Dz3-KUZO.cssstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/index.Dz3-KUZO.css — 200 — 4.3 KiB — 20 ms — h2https://static.cognitoforms.com/fonts/gilroy/gilroy-light_basic-latin.woff2static.cognitoforms.com/fonts/gilro... https://static.cognitoforms.com/fonts/gilroy/gilroy-light_basic-latin.woff2 — 200 — 9.1 KiB — 24 ms — h2https://static.cognitoforms.com/fonts/gilroy/gilroy-extrabold_basic-latin.woff2static.cognitoforms.com/fonts/gilro... https://static.cognitoforms.com/fonts/gilroy/gilroy-extrabold_basic-latin.woff2 — 200 — 9.0 KiB — 26 ms — h2https://www.googletagmanager.com/gtag/js?id=G-THVC5NH1WFwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-THVC5NH1WF — 200 — 172.5 KiB — 156 ms — h2https://bat.bing.com/bat.jsbat.bing.com/bat.js https://bat.bing.com/bat.js — 200 — 15.5 KiB — 121 ms — h2https://static.cognitoforms.com/website/assets/ValueCards.astro_astro_type_script_index_0_lang.C9u6fs4m.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/ValueCards.astro_astro_type_script_index_0_lang.C9u6fs4m.js — 200 — 574 B — 23 ms — h2https://static.cognitoforms.com/website/assets/documents.Co5dg02h.webpstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/documents.Co5dg02h.webp — 200 — 77.6 KiB — 48 ms — h2https://static.cognitoforms.com/website/assets/integrations.CDI65-Xl.webpstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/integrations.CDI65-Xl.webp — 200 — 93.6 KiB — 64 ms — h2https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,400;0,700;1,400&display=swapfonts.googleapis.com/css2?family=La... https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,400;0,700;1,400&display=swap — 200 — 934 B — 73 ms — h2https://static.cognitoforms.com/website/assets/Layout.astro_astro_type_script_index_0_lang.C5QhZT6g.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/Layout.astro_astro_type_script_index_0_lang.C5QhZT6g.js — 200 — 2.2 KiB — 19 ms — h2https://static.cognitoforms.com/website/assets/hr-forms.astro_astro_type_script_index_0_lang.B9mBuz8r.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/hr-forms.astro_astro_type_script_index_0_lang.B9mBuz8r.js — 200 — 80.0 KiB — 49 ms — h2https://static.cognitoforms.com/website/assets/human-resources-team.1Bl0pX5v.webpstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/human-resources-team.1Bl0pX5v.webp — 200 — 41.1 KiB — 21 ms — h2https://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2fonts.gstatic.com/s/lato/v25/S6uyw4... https://fonts.gstatic.com/s/lato/v25/S6uyw4BMUTPHjx4wXiWtFCc.woff2 — 200 — 13.7 KiB — 28 ms — h3https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2fonts.gstatic.com/s/lato/v25/S6u9w4... https://fonts.gstatic.com/s/lato/v25/S6u9w4BMUTPHh6UVSwiPGQ3q5d0.woff2 — 200 — 13.9 KiB — 31 ms — h3https://static.cognitoforms.com/website/assets/SupportChatTrigger.BVgPIRWY.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/SupportChatTrigger.BVgPIRWY.js — 200 — 1.1 KiB — 27 ms — h2https://static.cognitoforms.com/website/assets/client.CjCdjC2Y.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/client.CjCdjC2Y.js — 200 — 1.4 KiB — 26 ms — h2https://static.cognitoforms.com/website/assets/SupportChatWidget.CYqBjJYY.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/SupportChatWidget.CYqBjJYY.js — 200 — 25.4 KiB — 27 ms — h2https://static.cognitoforms.com/website/assets/click-outside.D_NZgmK4.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/click-outside.D_NZgmK4.js — 200 — 801 B — 22 ms — h2https://static.cognitoforms.com/website/assets/Inline.uylT4qF3.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/Inline.uylT4qF3.js — 200 — 11.5 KiB — 25 ms — h2https://static.cognitoforms.com/website/assets/vue.ziyDaVMR.9YWrw0qc.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/vue.ziyDaVMR.9YWrw0qc.js — 200 — 6.8 KiB — 23 ms — h2https://static.cognitoforms.com/website/assets/runtime-dom.esm-bundler.s94_COY1.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/runtime-dom.esm-bundler.s94_COY1.js — 200 — 7.1 KiB — 34 ms — h2https://static.cognitoforms.com/website/assets/_plugin-vue_export-helper.Cl1KIMoy.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/_plugin-vue_export-helper.Cl1KIMoy.js — 200 — 22.6 KiB — 38 ms — h2https://static.cognitoforms.com/website/assets/preload-helper.Ct5FWWRu.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/preload-helper.Ct5FWWRu.js — 200 — 1.1 KiB — 32 ms — h2https://static.cognitoforms.com/website/assets/reactivity.esm-bundler.BRi1K475.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/reactivity.esm-bundler.BRi1K475.js — 200 — 8.0 KiB — 32 ms — h2https://static.cognitoforms.com/website/assets/session.DCD_0O60.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/session.DCD_0O60.js — 200 — 1.7 KiB — 34 ms — h2https://static.cognitoforms.com/website/assets/support-chat-state.DlcTLbCw.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/support-chat-state.DlcTLbCw.js — 200 — 698 B — 34 ms — h2
0 ms 500 ms 1.0 s 1.5 s FCP 1.4 s LCP 1.4 shttps://cognitoforms.com// https://cognitoforms.com/ — 301 — 105 B — 294 ms — h2https://www.cognitoforms.com/www.cognitoforms.com/ https://www.cognitoforms.com/ — 200 — 85.7 KiB — 539 ms — h2https://static.cognitoforms.com/website/assets/_slug_.BXNOdUlm.cssstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/_slug_.BXNOdUlm.css — 200 — 14.2 KiB — 153 ms — h2https://static.cognitoforms.com/website/assets/favicons/manifest.webmanifeststatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/favicons/manifest.webmanifest — 200 — 807 B — 141 ms — h2https://static.cognitoforms.com/website/assets/index.Dz3-KUZO.cssstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/index.Dz3-KUZO.css — 200 — 4.3 KiB — 20 ms — h2https://static.cognitoforms.com/fonts/gilroy/gilroy-light_basic-latin.woff2static.cognitoforms.com/fonts/gilro... https://static.cognitoforms.com/fonts/gilroy/gilroy-light_basic-latin.woff2 — 200 — 9.1 KiB — 24 ms — h2https://static.cognitoforms.com/fonts/gilroy/gilroy-extrabold_basic-latin.woff2static.cognitoforms.com/fonts/gilro... https://static.cognitoforms.com/fonts/gilroy/gilroy-extrabold_basic-latin.woff2 — 200 — 9.0 KiB — 26 ms — h2https://www.googletagmanager.com/gtag/js?id=G-THVC5NH1WFwww.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-THVC5NH1WF — 200 — 172.5 KiB — 156 ms — h2https://bat.bing.com/bat.jsbat.bing.com/bat.js https://bat.bing.com/bat.js — 200 — 15.5 KiB — 121 ms — h2https://static.cognitoforms.com/website/assets/ValueCards.astro_astro_type_script_index_0_lang.C9u6fs4m.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/ValueCards.astro_astro_type_script_index_0_lang.C9u6fs4m.js — 200 — 574 B — 23 ms — h2https://static.cognitoforms.com/website/assets/documents.Co5dg02h.webpstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/documents.Co5dg02h.webp — 200 — 77.6 KiB — 48 ms — h2https://static.cognitoforms.com/website/assets/integrations.CDI65-Xl.webpstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/integrations.CDI65-Xl.webp — 200 — 93.6 KiB — 64 ms — h2https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,400;0,700;1,400&display=swapfonts.googleapis.com/css2?family=La... https://fonts.googleapis.com/css2?family=Lato:ital,wght@0,400;0,700;1,400&display=swap — 200 — 934 B — 73 ms — h2https://static.cognitoforms.com/website/assets/Layout.astro_astro_type_script_index_0_lang.C5QhZT6g.jsstatic.cognitoforms.com/website/ass... https://static.cognitoforms.com/website/assets/Layout.astro_astro_type_script_index_0_lang.C5QhZT6g.js — 200 — 2.2 KiB — 19 ms — 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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 772ms · 338KB · $4/mo
www.cognitoforms.com
Other
Costly
Execution 467ms
Transfer 86 KB
Monthly Cost $3/mo
static.cognitoforms.com
Other
Optional
Execution 106ms
Transfer 80 KB
Unused 57%
Monthly Cost $1/mo
Unattributable
Other
Optional
Execution 105ms
Transfer 0 KB
Monthly Cost $1/mo
Google Tag Manager
Tag Manager
Optional
Execution 94ms
Transfer 172 KB
Unused 34%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.cognitoforms.com adds 467ms and costs ~$3/month

100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.

Why this matters

When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.

Learn more ▾

Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.

Source: web.dev

www.cognitoforms.com takes 467ms 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

57% of static.cognitoforms.com'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

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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