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https://igi-global.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
67
GRADE
D
FIX
6
REVIEW
2
PASS
7
INFO
2

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

Mobile Desktop
52
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
69
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
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.

14.32 s

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

28.79 s

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

185 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.

14.32 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.

29.17 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
17
7 PASS 2 REVIEW 6 FIX
F
Page Weight Budget
Action
5.6 MB transferred, 79 requests
FIX
5.6 MB transferred, 79 requests
Critical::
Page weighs 6.5 MB (5.6 MB transferred)
Warning::
Images are 3.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.0 MB
Warning::
JavaScript is 1.7 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.7 MB
Info::
CSS is 559 KB — consider purging unused styles
Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.
Got: 559 KB
Info::
79 HTTP requests
Info::
Estimated 1.2 g CO2 per page load
5.6 MB / 2.4 MB budget
5.6 MB transferred
79 requests
1.2 g CO2 per page load
Images 3.0 MiB 54%
JavaScript 1.7 MiB 31%
CSS 559.3 KiB 10%
HTML 152.5 KiB 3%
Fonts 142.2 KiB 2%
Other 15.1 KiB 0%
Other 6.0 KiB 0%
Other 3.2 KiB 0%
Other 0 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

Remove unused CSS rules with tools like PurgeCSS to reduce stylesheet size.

Why this matters

CSS bundle is large — purge unused styles (PurgeCSS, Tailwind JIT) to reduce CSS payload.

Source: web.dev

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 (5.6 MiB of 5.6 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2043ms total JS execution
FIX
2043ms total JS execution
Warning::
https://www.igi-global.com/bundles/js/bookstore?v=...: 1000ms CPU time
Warning::
Unattributable: 428ms CPU time
Warning::
https://www.igi-global.com/: 271ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-4Y3C...: 253ms CPU time
Info::
https://www.igi-global.com/Scripts/external/2025/j...: 90ms CPU time
Warning::
Third-party scripts: 2043ms (100% of total)

Main Thread Breakdown

Script Evaluation 43% Other 22% Style & Layout 17% Script Parsing & Compilation 13% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.igi-global.com/bundles/js/bookstore?v=txakjgrmvtg3dpg8mjb-jkht0mub4mn9g-wh8wlhfow11000ms581ms152ms3rd
Unattributable428ms24ms0ms3rd
https://www.igi-global.com/271ms19ms9ms3rd
https://www.googletagmanager.com/gtag/js?id=G-4Y3CX4YME3253ms216ms36ms3rd
https://www.igi-global.com/Scripts/external/2025/jquery-3.7.1.js90ms40ms38ms3rd
F
JS Bundles
Action
12 scripts, 1.2 MB unused
FIX
12 scripts, 1.2 MB unused
Warning::
https://www.igi-global.com/bundles/js/bookstore?v=...: 1020 KB unused (74%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.igi-global.com/bundles/js/bookstore?v=...: unminified — 349 KB could be saved
Warning::
https://www.googletagmanager.com/gtag/js?id=G-4Y3C...: 66 KB unused (39%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.igi-global.com/Scripts/external/2025/j...: 62 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.igi-global.com/Scripts/external/2025/j...: unminified — 41 KB could be saved
Warning::
https://www.igi-global.com/Scripts/external/bootst...: 33 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.igi-global.com/WebResource.axd?d=pynGk...: 22 KB unused (98%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.2 MB
1203 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.igi-global.com/bundles/js/bookstore?v=txakjgrmvtg3dpg8mjb-jkht0mub4mn9g-wh8wlhfow11381 KB1020 KB (74%)✗3rd
https://www.googletagmanager.com/gtag/js?id=G-4Y3CX4YME3167 KB66 KB (39%)✓3rd
https://www.igi-global.com/Scripts/external/2025/jquery-3.7.1.js83 KB62 KB (75%)✗3rd
https://www.igi-global.com/Scripts/external/bootstrap/bootstrap-5.3.7-dist/js/bootstrap.bundle.js44 KB33 KB (75%)✗3rd
https://www.igi-global.com/WebResource.axd?d=pynGkmcFUV13He1Qd6_TZPmWIJVCCio-VoI6UnxNfXMaVvGMFhCa3dM7UN6i8k0G8WmiNg2&t=63890138231263683223 KB22 KB (98%)✗3rd
https://www.igi-global.com/ScriptResource.axd?d=nv7asgRUU0tRmHNR2D6t1C7Uy6VRPLvoS3lBxyvpzyglauuMRPWzbFcHIDQkx_uyLKVhyUKIybHHyw9BycWdu8AdgmL2K8Tz5PMoehSkNJFIBVtc0iIrilefkZ00hcLjp8P4Gw2&t=40d125166 KB—✓3rd
https://www.igi-global.com/ScriptResource.axd?d=NJmAwtEo3Ipnlaxl6CMhvkql_yXEPqA7jqG-7jGHaSvhvs_RpwySgMPJKAUwP0h3uxo4Ov7pKanKUHi9umNbxWo2h4t2E24h16BB22kt-kpvksfBf6Xv_3h9MKpX2Ofkvj3HsEO1kKj0SJOTspQATQT-Vs41&t=345ad96825 KB—✓3rd
https://www.igi-global.com/ScriptResource.axd?d=dwY9oWetJoJoVpgL6Zq8OKoo7b305hGqSpT-EZmH6r2lHn47af1fQSCc7WzoA_AP_eLvyR12P9iZ6sRD16Ojg_3jYrR8_DrKfgynnYiPyk4F-ElGRjnK3wTfLCsHMBY3pyEu3Afa_Eutb173DHGK-dRfLjo1&t=345ad96810 KB—✓3rd
https://www.igi-global.com/includes/currency.js3 KB—✓3rd
https://js.zi-scripts.com/zi-tag.js6 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

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

F
Page Weight Inventory
Action
79 resources · 5.6 MB · 1.2 MB savings available
FIX
79 resources · 5.6 MB · 1.2 MB savings available
Warning::
Page weight 4.6 MB over 1MB target
Got: 5.6 MB Expected: ≤ 1 MB
Info::
~1.2 MB of savings available
Warning::
78 third-party resources (100% of weight)
Info::
6 resources over 200KB
79 resources · 5.6 MiB · 78 third-party 4.6 MiB over 1MB target
Image 54% · 3.0 MiB
JavaScript 31% · 1.7 MiB
CSS 10% · 559.3 KiB
Document 3% · 152.6 KiB
Font 2% · 142.2 KiB
Other 0% · 16.4 KiB

~1.2 MiB of savings available

Remove unused JavaScript: 1.2 MiB
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
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store

DirectiveValueMeaning
no-store—Never cache this response
B
Image Optimization
54 images, 0 KB saveable
REVIEW
54 images, 0 KB saveable
Warning::
https://coverimages.igi-global.com/images/cope-log... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
54 images 3.0 MB
0 oversized -0 KB
10 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

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

Green Hosting

No green hosting detected

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
2 fonts (142 KB)
PASS
2 fonts (142 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

142 KB total

Render-blocking

0

of 2

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 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s FCP 14.3 s LCP 28.8 shttps://www.igi-global.com/fonts/open-sans-condensed/open-sans-condensed-v12-latin-300.woff2open-sans-condensed-v12... https://www.igi-global.com/fonts/open-sans-condensed/open-sans-condensed-v12-latin-300.woff2 — 14.5 KiB — 367 ms — font-display: swaphttps://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/fonts/bootstrap-icons.woff2?dd67030699838ea613ee6dbda90effa6bootstrap-icons.woff2 https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/fonts/bootstrap-icons.woff2?dd67030699838ea613ee6dbda90effa6 — 127.7 KiB — 28 ms — font-display: swap
open-sans-condensed-v12... woff2 swap
Size 15 KB
Load time 367 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
bootstrap-icons.woff2 woff2 swap
Size 128 KB
Load time 28 ms
Start 2.2 s
Risk FOUT — text flashes from fallback to web font
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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)

Fixing the unchecked items could save ~64 KB and ~128 ms

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+
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
Network Waterfall
79 requests over 3999ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s 16.0 s 18.0 s 20.0 s 22.0 s 24.0 s 26.0 s 28.0 s 30.0 s FCP 14.3 s LCP 28.8 shttps://igi-global.com// https://igi-global.com/ — 301 — 152 B — 85 ms — h2https://www.igi-global.com/www.igi-global.com/ https://www.igi-global.com/ — 200 — 152.5 KiB — 1.2 s — h2https://www.igi-global.com/fonts/open-sans-condensed/open-sans-condensed-v12-latin-300.woff2www.igi-global.com/fonts/open-sans-... https://www.igi-global.com/fonts/open-sans-condensed/open-sans-condensed-v12-latin-300.woff2 — 200 — 14.5 KiB — 367 ms — h2https://www.igi-global.com/Scripts/external/2025/jquery-3.7.1.jswww.igi-global.com/Scripts/external... https://www.igi-global.com/Scripts/external/2025/jquery-3.7.1.js — 200 — 83.5 KiB — 552 ms — h2https://www.igi-global.com/Scripts/external/bootstrap/bootstrap-5.3.7-dist/js/bootstrap.bundle.jswww.igi-global.com/Scripts/external... https://www.igi-global.com/Scripts/external/bootstrap/bootstrap-5.3.7-dist/js/bootstrap.bundle.js — 200 — 43.9 KiB — 454 ms — h2https://www.igi-global.com/bundles/css/bookstore2025?v=uwwvq1dzmstfctgeonspvpcs-hnqp1wyddbudsnt6ns1www.igi-global.com/bundles/css/book... https://www.igi-global.com/bundles/css/bookstore2025?v=uwwvq1dzmstfctgeonspvpcs-hnqp1wyddbudsnt6ns1 — 200 — 545.6 KiB — 962 ms — h2https://www.igi-global.com/bundles/js/bookstore?v=txakjgrmvtg3dpg8mjb-jkht0mub4mn9g-wh8wlhfow1www.igi-global.com/bundles/js/books... https://www.igi-global.com/bundles/js/bookstore?v=txakjgrmvtg3dpg8mjb-jkht0mub4mn9g-wh8wlhfow1 — 200 — 1.3 MiB — 1.1 s — h2https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.csscdn.jsdelivr.net/npm/bootstrap-icon... https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.css — 200 — 13.8 KiB — 47 ms — h2https://www.igi-global.com/WebResource.axd?d=pynGkmcFUV13He1Qd6_TZPmWIJVCCio-VoI6UnxNfXMaVvGMFhCa3dM7UN6i8k0G8WmiNg2&t=638901382312636832www.igi-global.com/WebResource.axd?... https://www.igi-global.com/WebResource.axd?d=pynGkmcFUV13He1Qd6_TZPmWIJVCCio-VoI6UnxNfXMaVvGMFhCa3dM7UN6i8k0G8WmiNg2&t=638901382312636832 — 200 — 22.9 KiB — 461 ms — h2https://www.igi-global.com/ScriptResource.axd?d=nv7asgRUU0tRmHNR2D6t1C7Uy6VRPLvoS3lBxyvpzyglauuMRPWzbFcHIDQkx_uyLKVhyUKIybHHyw9BycWdu8AdgmL2K8Tz5PMoehSkNJFIBVtc0iIrilefkZ00hcLjp8P4Gw2&t=40d12516www.igi-global.com/ScriptResource.a... https://www.igi-global.com/ScriptResource.axd?d=nv7asgRUU0tRmHNR2D6t1C7Uy6VRPLvoS3lBxyvpzyglauuMRPWzbFcHIDQkx_uyLKVhyUKIybHHyw9BycWdu8AdgmL2K8Tz5PMoehSkNJFIBVtc0iIrilefkZ00hcLjp8P4Gw2&t=40d12516 — 200 — 5.7 KiB — 382 ms — h2https://www.igi-global.com/ScriptResource.axd?d=NJmAwtEo3Ipnlaxl6CMhvkql_yXEPqA7jqG-7jGHaSvhvs_RpwySgMPJKAUwP0h3uxo4Ov7pKanKUHi9umNbxWo2h4t2E24h16BB22kt-kpvksfBf6Xv_3h9MKpX2Ofkvj3HsEO1kKj0SJOTspQATQT-Vs41&t=345ad968www.igi-global.com/ScriptResource.a... https://www.igi-global.com/ScriptResource.axd?d=NJmAwtEo3Ipnlaxl6CMhvkql_yXEPqA7jqG-7jGHaSvhvs_RpwySgMPJKAUwP0h3uxo4Ov7pKanKUHi9umNbxWo2h4t2E24h16BB22kt-kpvksfBf6Xv_3h9MKpX2Ofkvj3HsEO1kKj0SJOTspQATQT-Vs41&t=345ad968 — 200 — 25.4 KiB — 485 ms — h2https://www.igi-global.com/ScriptResource.axd?d=dwY9oWetJoJoVpgL6Zq8OKoo7b305hGqSpT-EZmH6r2lHn47af1fQSCc7WzoA_AP_eLvyR12P9iZ6sRD16Ojg_3jYrR8_DrKfgynnYiPyk4F-ElGRjnK3wTfLCsHMBY3pyEu3Afa_Eutb173DHGK-dRfLjo1&t=345ad968www.igi-global.com/ScriptResource.a... https://www.igi-global.com/ScriptResource.axd?d=dwY9oWetJoJoVpgL6Zq8OKoo7b305hGqSpT-EZmH6r2lHn47af1fQSCc7WzoA_AP_eLvyR12P9iZ6sRD16Ojg_3jYrR8_DrKfgynnYiPyk4F-ElGRjnK3wTfLCsHMBY3pyEu3Afa_Eutb173DHGK-dRfLjo1&t=345ad968 — 200 — 10.1 KiB — 383 ms — h2https://coverimages.igi-global.com/images/igi-global-logo-loc.webpcoverimages.igi-global.com/images/i... https://coverimages.igi-global.com/images/igi-global-logo-loc.webp — 200 — 14.8 KiB — 191 ms — h2https://coverimages.igi-global.com/images/april-read-and-publish-webinar-website-flyer-panelists.jpgcoverimages.igi-global.com/images/a... https://coverimages.igi-global.com/images/april-read-and-publish-webinar-website-flyer-panelists.jpg — 200 — 408.1 KiB — 254 ms — h2https://coverimages.igi-global.com/images/library_partnerships_ffoapa.jpgcoverimages.igi-global.com/images/l... https://coverimages.igi-global.com/images/library_partnerships_ffoapa.jpg — 200 — 259.2 KiB — 82 ms — h2https://coverimages.igi-global.com/images/clemsonuniversity_cmyk__orangepurple.jpgcoverimages.igi-global.com/images/c... https://coverimages.igi-global.com/images/clemsonuniversity_cmyk__orangepurple.jpg — 200 — 688.9 KiB — 35 ms — h2https://www.igi-global.com/includes/currency.jswww.igi-global.com/includes/currenc... https://www.igi-global.com/includes/currency.js — 200 — 2.7 KiB — 110 ms — h2https://www.googletagmanager.com/gtag/js?id=G-4Y3CX4YME3www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-4Y3CX4YME3 — 200 — 167.4 KiB — 196 ms — h2https://coverimages.igi-global.com/images/tache.pngcoverimages.igi-global.com/images/t... https://coverimages.igi-global.com/images/tache.png — 200 — 770.3 KiB — 36 ms — h2https://conferences.upcea.edu/regional/images/UPCEA-Logo.jpgconferences.upcea.edu/regional/imag... https://conferences.upcea.edu/regional/images/UPCEA-Logo.jpg — 200 — 11.0 KiB — 941 ms — h2https://coverimages.igi-global.com/cover-images/covers/9781799826538.webpcoverimages.igi-global.com/cover-im... https://coverimages.igi-global.com/cover-images/covers/9781799826538.webp — 200 — 17.3 KiB — 390 ms — h2https://coverimages.igi-global.com/cover-images/covers/9781799813095.webpcoverimages.igi-global.com/cover-im... https://coverimages.igi-global.com/cover-images/covers/9781799813095.webp — 200 — 15.3 KiB — 34 ms — h2https://coverimages.igi-global.com/cover-images/covers/9781799817604.webpcoverimages.igi-global.com/cover-im... https://coverimages.igi-global.com/cover-images/covers/9781799817604.webp — 200 — 7.6 KiB — 40 ms — h2https://coverimages.igi-global.com/cover-images/covers/9781799824510.webpcoverimages.igi-global.com/cover-im... https://coverimages.igi-global.com/cover-images/covers/9781799824510.webp — 200 — 17.5 KiB — 31 ms — h2https://coverimages.igi-global.com/cover-images/covers/9781799824572.webpcoverimages.igi-global.com/cover-im... https://coverimages.igi-global.com/cover-images/covers/9781799824572.webp — 200 — 15.4 KiB — 31 ms — h2https://coverimages.igi-global.com/cover-images/covers/9781799825173.webpcoverimages.igi-global.com/cover-im... https://coverimages.igi-global.com/cover-images/covers/9781799825173.webp — 200 — 20.2 KiB — 37 ms — h2https://coverimages.igi-global.com/cover-images/covers/9781799821168.webpcoverimages.igi-global.com/cover-im... https://coverimages.igi-global.com/cover-images/covers/9781799821168.webp — 200 — 17.4 KiB — 35 ms — h2data:image/svg+xml,%3csvg 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Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 2043ms · 1784KB · $27/mo
www.igi-global.com
Other
Costly
Execution 1000ms
Transfer 1381 KB
Unused 74%
Monthly Cost $13/mo
Unattributable
Other
Costly
Execution 428ms
Transfer 0 KB
Monthly Cost $6/mo
www.igi-global.com
Other
Costly
Execution 271ms
Transfer 152 KB
Monthly Cost $4/mo
Google Tag Manager
Tag Manager
Costly
Execution 253ms
Transfer 167 KB
Unused 39%
Monthly Cost $3/mo
www.igi-global.com
Other
Optional
Execution 90ms
Transfer 83 KB
Unused 75%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • www.igi-global.com adds 1000ms and costs ~$13/month
  • Unattributable adds 428ms and costs ~$6/month
  • www.igi-global.com adds 271ms and costs ~$4/month
  • Google Tag Manager adds 253ms 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.igi-global.com takes 1000ms 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

74% of www.igi-global.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

Unattributable takes 428ms 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

www.igi-global.com takes 271ms 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 253ms 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

75% of www.igi-global.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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