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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
76
GRADE
C
FIX
3
REVIEW
4
PASS
6
INFO
2

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

Mobile Desktop
83
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
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.

551 ms

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

1.71 s

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

257 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.

1.10 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.

2.76 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
6 PASS 4 REVIEW 3 FIX
D
Page Weight Budget
Action
2.2 MB transferred, 52 requests
FIX
2.2 MB transferred, 52 requests
Info::
Page weighs 5.0 MB (2.2 MB transferred)
Info::
Fonts are 910 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 910 KB
Warning::
JavaScript is 740 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 740 KB
Info::
52 HTTP requests
Info::
Estimated 0.45 g CO2 per page load
2.2 MB / 2.4 MB budget
2.2 MB transferred
52 requests
0.45 g CO2 per page load
Fonts 910.5 KiB 41%
JavaScript 739.9 KiB 33%
Images 513.0 KiB 23%
CSS 26.6 KiB 1%
HTML 21.4 KiB 1%
Other 5.5 KiB 0%
Other 4.1 KiB 0%
Other 548 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Approaching limit

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

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

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 (2.2 MiB of 2.2 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
Page Weight Inventory
Action
52 resources · 2.2 MB · 272 KB savings available
FIX
52 resources · 2.2 MB · 272 KB savings available
Warning::
Page weight 1.2 MB over 1MB target
Got: 2.2 MB Expected: ≤ 1 MB
Info::
~272 KB of savings available
Warning::
51 third-party resources (100% of weight)
Info::
3 resources over 200KB
52 resources · 2.2 MiB · 51 third-party 1.2 MiB over 1MB target
Font 41% · 910.5 KiB
JavaScript 33% · 739.9 KiB
Image 23% · 515.1 KiB
CSS 1% · 26.6 KiB
Document 1% · 21.4 KiB
Other 0% · 8.1 KiB

~271.5 KiB of savings available

Remove unused JavaScript: 271.5 KiB
B
Image Optimization
14 images, 0 KB saveable
REVIEW
14 images, 0 KB saveable
Info::
All images are well-optimized
14 images 513 KB
0 oversized -0 KB
14 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1172ms total JS execution
REVIEW
1172ms total JS execution
Warning::
https://cmp.osano.com/169lTOSNzFFdw20EN/adcab978-e...: 320ms CPU time
Info::
https://www.ebsco.com/: 222ms CPU time
Info::
Unattributable: 163ms CPU time
Info::
https://www.ebsco.com/_next/static/chunks/255-ebd5...: 144ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-6RZ0...: 127ms CPU time
Warning::
Third-party scripts: 1172ms (100% of total)

Main Thread Breakdown

Script Evaluation 60% Other 16% Style & Layout 11% Script Parsing & Compilation 8%
ScriptTotalScriptingParse/CompileParty
https://cmp.osano.com/169lTOSNzFFdw20EN/adcab978-e7bd-469a-a9fd-6fa5f686ea58/osano.js320ms291ms10ms3rd
https://www.ebsco.com/222ms9ms4ms3rd
Unattributable163ms4ms0ms3rd
https://www.ebsco.com/_next/static/chunks/255-ebd51be49873d76c.js144ms130ms8ms3rd
https://www.googletagmanager.com/gtag/js?id=G-6RZ081Y9JN&cx=c&gtm=4e64h1127ms104ms21ms3rd
https://www.ebsco.com/_next/static/chunks/17-8bddf720b010653d.js121ms109ms13ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MWPMZ2GJ75ms59ms15ms3rd
C
JS Bundles
Action
22 scripts, 272 KB unused
REVIEW
22 scripts, 272 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-6RZ0...: 66 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-MWP...: 62 KB unused (50%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.ebsco.com/_next/static/chunks/17-8bddf...: 59 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.ebsco.com/_next/static/chunks/179-da91...: 55 KB unused (80%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.ebsco.com/_next/static/chunks/992-b187...: 29 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 272 KB
272 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-6RZ081Y9JN&cx=c&gtm=4e64h1158 KB66 KB (42%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MWPMZ2GJ125 KB62 KB (50%)✓3rd
https://www.ebsco.com/_next/static/chunks/17-8bddf720b010653d.js88 KB59 KB (73%)✓3rd
https://www.ebsco.com/_next/static/chunks/179-da91ab312bb55831.js70 KB55 KB (80%)✓3rd
https://www.ebsco.com/_next/static/chunks/992-b18724bfe3841650.js43 KB29 KB (70%)✓3rd
https://www.ebsco.com/_next/static/chunks/app/layout-cecdfe07c15551c6.js15 KB—✓3rd
https://www.ebsco.com/_next/static/chunks/app/global-error-50b3193c0c2bf068.js2 KB—✓3rd
https://www.ebsco.com/_next/static/chunks/619-ba102abea3e3d0e4.js5 KB—✓3rd
https://www.ebsco.com/_next/static/chunks/297-4ce47be2499823a4.js6 KB—✓3rd
https://www.ebsco.com/_next/static/chunks/689-5da91db14b2ad3d2.js5 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

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
3 fonts (910 KB)
PASS
3 fonts (910 KB)
Info::
3 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

3

910 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 500 ms 1.0 s 1.5 s FCP 551 ms LCP 1.7 shttps://www.ebsco.com/_next/static/media/127a1b4517fc40ee-s.p.ttf127a1b4517fc40ee-s.p.ttf https://www.ebsco.com/_next/static/media/127a1b4517fc40ee-s.p.ttf — 305.8 KiB — 62 ms — font-display: swaphttps://www.ebsco.com/_next/static/media/388cf58c68f01c86-s.p.ttf388cf58c68f01c86-s.p.ttf https://www.ebsco.com/_next/static/media/388cf58c68f01c86-s.p.ttf — 295.9 KiB — 37 ms — font-display: swaphttps://www.ebsco.com/_next/static/media/48f6b8a169b1859d-s.p.ttf48f6b8a169b1859d-s.p.ttf https://www.ebsco.com/_next/static/media/48f6b8a169b1859d-s.p.ttf — 308.8 KiB — 217 ms — font-display: swap
127a1b4517fc40ee-s.p.ttf ttf swap
Size 306 KB
Load time 62 ms
Start 58 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
388cf58c68f01c86-s.p.ttf ttf swap
Size 296 KB
Load time 37 ms
Start 60 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
48f6b8a169b1859d-s.p.ttf ttf swap
Size 309 KB
Load time 217 ms
Start 60 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
  • 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 ~728 KB and ~1456 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
HTTP Caching
max-age=31536000 (52 weeks)
PASS
max-age=31536000 (52 weeks)
Info::
Cache-Control header is set
Got: max-age=31536000
Info::
Effective TTL: 52 weeks (max-age=31536000)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

max-age=31536000

DirectiveValueMeaning
max-age31536000Cache for 52 weeks
Effective TTL: 31536000 seconds
Network Waterfall
52 requests over 2531ms
INFO
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 551 ms LCP 1.7 shttps://ebsco.com// https://ebsco.com/ — 301 — 1.5 KiB — 17 ms — h2https://www.ebsco.com/www.ebsco.com/ https://www.ebsco.com/ — 200 — 20.2 KiB — 22 ms — h2https://www.ebsco.com/_next/static/media/127a1b4517fc40ee-s.p.ttfwww.ebsco.com/_next/static/media/12... https://www.ebsco.com/_next/static/media/127a1b4517fc40ee-s.p.ttf — 200 — 305.8 KiB — 62 ms — h2https://www.ebsco.com/_next/static/media/388cf58c68f01c86-s.p.ttfwww.ebsco.com/_next/static/media/38... https://www.ebsco.com/_next/static/media/388cf58c68f01c86-s.p.ttf — 200 — 295.9 KiB — 37 ms — h2https://www.ebsco.com/_next/static/media/48f6b8a169b1859d-s.p.ttfwww.ebsco.com/_next/static/media/48... https://www.ebsco.com/_next/static/media/48f6b8a169b1859d-s.p.ttf — 200 — 308.8 KiB — 217 ms — h2https://www.ebsco.com/_next/static/css/99094797a6154f44.csswww.ebsco.com/_next/static/css/9909... https://www.ebsco.com/_next/static/css/99094797a6154f44.css — 200 — 2.3 KiB — 162 ms — h2https://www.ebsco.com/_next/static/css/8ba216773a81b52b.csswww.ebsco.com/_next/static/css/8ba2... https://www.ebsco.com/_next/static/css/8ba216773a81b52b.css — 200 — 24.3 KiB — 52 ms — h2https://cmp.osano.com/169lTOSNzFFdw20EN/adcab978-e7bd-469a-a9fd-6fa5f686ea58/osano.jscmp.osano.com/169lTOSNzFFdw20EN/adc... https://cmp.osano.com/169lTOSNzFFdw20EN/adcab978-e7bd-469a-a9fd-6fa5f686ea58/osano.js — 200 — 54.5 KiB — 55 ms — h3https://www.ebsco.com/_next/static/media/splotch-image.bfd00c70.svgwww.ebsco.com/_next/static/media/sp... https://www.ebsco.com/_next/static/media/splotch-image.bfd00c70.svg — 200 — 78.6 KiB — 57 ms — h2https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fnational-wildlife-week.jpeg&w=640&q=75www.ebsco.com/_next/image?url=%2Fim... https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fnational-wildlife-week.jpeg&w=640&q=75 — 200 — 32.2 KiB — 117 ms — h2https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fnational-volunteer-week.jpeg&w=640&q=75www.ebsco.com/_next/image?url=%2Fim... https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fnational-volunteer-week.jpeg&w=640&q=75 — 200 — 46.8 KiB — 219 ms — h3https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fautism-awareness-month.jpeg&w=640&q=75www.ebsco.com/_next/image?url=%2Fim... https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fautism-awareness-month.jpeg&w=640&q=75 — 200 — 18.2 KiB — 158 ms — h3https://www.ebsco.com/_next/static/chunks/webpack-71b6b6cfc2d54794.jswww.ebsco.com/_next/static/chunks/w... https://www.ebsco.com/_next/static/chunks/webpack-71b6b6cfc2d54794.js — 200 — 3.1 KiB — 17 ms — h3https://www.ebsco.com/_next/static/chunks/4bd1b696-c023c6e3521b1417.jswww.ebsco.com/_next/static/chunks/4... https://www.ebsco.com/_next/static/chunks/4bd1b696-c023c6e3521b1417.js — 200 — 54.6 KiB — 96 ms — h3https://www.ebsco.com/_next/static/chunks/255-ebd51be49873d76c.jswww.ebsco.com/_next/static/chunks/2... https://www.ebsco.com/_next/static/chunks/255-ebd51be49873d76c.js — 200 — 46.5 KiB — 91 ms — h3https://www.ebsco.com/_next/static/chunks/main-app-748b2690b9d5c43a.jswww.ebsco.com/_next/static/chunks/m... https://www.ebsco.com/_next/static/chunks/main-app-748b2690b9d5c43a.js — 200 — 2.0 KiB — 28 ms — h3https://www.ebsco.com/_next/static/chunks/17-8bddf720b010653d.jswww.ebsco.com/_next/static/chunks/1... https://www.ebsco.com/_next/static/chunks/17-8bddf720b010653d.js — 200 — 87.6 KiB — 114 ms — h3https://www.ebsco.com/_next/static/chunks/179-da91ab312bb55831.jswww.ebsco.com/_next/static/chunks/1... https://www.ebsco.com/_next/static/chunks/179-da91ab312bb55831.js — 200 — 70.3 KiB — 108 ms — h3https://www.ebsco.com/_next/static/chunks/619-ba102abea3e3d0e4.jswww.ebsco.com/_next/static/chunks/6... https://www.ebsco.com/_next/static/chunks/619-ba102abea3e3d0e4.js — 200 — 4.8 KiB — 57 ms — h3https://www.ebsco.com/_next/static/chunks/297-4ce47be2499823a4.jswww.ebsco.com/_next/static/chunks/2... https://www.ebsco.com/_next/static/chunks/297-4ce47be2499823a4.js — 200 — 5.7 KiB — 56 ms — h3https://www.ebsco.com/_next/static/chunks/689-5da91db14b2ad3d2.jswww.ebsco.com/_next/static/chunks/6... https://www.ebsco.com/_next/static/chunks/689-5da91db14b2ad3d2.js — 200 — 5.1 KiB — 91 ms — h3https://www.ebsco.com/_next/static/chunks/app/layout-cecdfe07c15551c6.jswww.ebsco.com/_next/static/chunks/a... https://www.ebsco.com/_next/static/chunks/app/layout-cecdfe07c15551c6.js — 200 — 14.8 KiB — 96 ms — h3https://www.ebsco.com/_next/static/chunks/992-b18724bfe3841650.jswww.ebsco.com/_next/static/chunks/9... https://www.ebsco.com/_next/static/chunks/992-b18724bfe3841650.js — 200 — 42.7 KiB — 106 ms — h3https://www.ebsco.com/_next/static/chunks/231-8a983af39479f578.jswww.ebsco.com/_next/static/chunks/2... https://www.ebsco.com/_next/static/chunks/231-8a983af39479f578.js — 200 — 6.3 KiB — 95 ms — h3https://www.ebsco.com/_next/static/chunks/app/not-found-a948099dc9b00e08.jswww.ebsco.com/_next/static/chunks/a... https://www.ebsco.com/_next/static/chunks/app/not-found-a948099dc9b00e08.js — 200 — 2.6 KiB — 42 ms — h3https://www.ebsco.com/_next/static/chunks/app/global-error-50b3193c0c2bf068.jswww.ebsco.com/_next/static/chunks/a... https://www.ebsco.com/_next/static/chunks/app/global-error-50b3193c0c2bf068.js — 200 — 2.3 KiB — 84 ms — h3https://www.ebsco.com/_next/static/chunks/356-1ae4a496cefe0fa8.jswww.ebsco.com/_next/static/chunks/3... https://www.ebsco.com/_next/static/chunks/356-1ae4a496cefe0fa8.js — 200 — 6.5 KiB — 107 ms — h3https://www.ebsco.com/_next/static/chunks/497-81ffb77565be9599.jswww.ebsco.com/_next/static/chunks/4... https://www.ebsco.com/_next/static/chunks/497-81ffb77565be9599.js — 200 — 4.5 KiB — 108 ms — h3https://www.ebsco.com/_next/static/chunks/app/page-cb5ae02a15165b72.jswww.ebsco.com/_next/static/chunks/a... https://www.ebsco.com/_next/static/chunks/app/page-cb5ae02a15165b72.js — 200 — 12.4 KiB — 114 ms — h3https://www.ebsco.com/_next/static/media/scanline-light.87d0d222.pngwww.ebsco.com/_next/static/media/sc... https://www.ebsco.com/_next/static/media/scanline-light.87d0d222.png — 200 — 1.5 KiB — 86 ms — h3
0 ms 500 ms 1.0 s 1.5 s 2.0 s 2.5 s FCP 551 ms LCP 1.7 shttps://ebsco.com// https://ebsco.com/ — 301 — 1.5 KiB — 17 ms — h2https://www.ebsco.com/www.ebsco.com/ https://www.ebsco.com/ — 200 — 20.2 KiB — 22 ms — h2https://www.ebsco.com/_next/static/media/127a1b4517fc40ee-s.p.ttfwww.ebsco.com/_next/static/media/12... https://www.ebsco.com/_next/static/media/127a1b4517fc40ee-s.p.ttf — 200 — 305.8 KiB — 62 ms — h2https://www.ebsco.com/_next/static/media/388cf58c68f01c86-s.p.ttfwww.ebsco.com/_next/static/media/38... https://www.ebsco.com/_next/static/media/388cf58c68f01c86-s.p.ttf — 200 — 295.9 KiB — 37 ms — h2https://www.ebsco.com/_next/static/media/48f6b8a169b1859d-s.p.ttfwww.ebsco.com/_next/static/media/48... https://www.ebsco.com/_next/static/media/48f6b8a169b1859d-s.p.ttf — 200 — 308.8 KiB — 217 ms — h2https://www.ebsco.com/_next/static/css/99094797a6154f44.csswww.ebsco.com/_next/static/css/9909... https://www.ebsco.com/_next/static/css/99094797a6154f44.css — 200 — 2.3 KiB — 162 ms — h2https://www.ebsco.com/_next/static/css/8ba216773a81b52b.csswww.ebsco.com/_next/static/css/8ba2... https://www.ebsco.com/_next/static/css/8ba216773a81b52b.css — 200 — 24.3 KiB — 52 ms — h2https://cmp.osano.com/169lTOSNzFFdw20EN/adcab978-e7bd-469a-a9fd-6fa5f686ea58/osano.jscmp.osano.com/169lTOSNzFFdw20EN/adc... https://cmp.osano.com/169lTOSNzFFdw20EN/adcab978-e7bd-469a-a9fd-6fa5f686ea58/osano.js — 200 — 54.5 KiB — 55 ms — h3https://www.ebsco.com/_next/static/media/splotch-image.bfd00c70.svgwww.ebsco.com/_next/static/media/sp... https://www.ebsco.com/_next/static/media/splotch-image.bfd00c70.svg — 200 — 78.6 KiB — 57 ms — h2https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fnational-wildlife-week.jpeg&w=640&q=75www.ebsco.com/_next/image?url=%2Fim... https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fnational-wildlife-week.jpeg&w=640&q=75 — 200 — 32.2 KiB — 117 ms — h2https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fnational-volunteer-week.jpeg&w=640&q=75www.ebsco.com/_next/image?url=%2Fim... https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fnational-volunteer-week.jpeg&w=640&q=75 — 200 — 46.8 KiB — 219 ms — h3https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fautism-awareness-month.jpeg&w=640&q=75www.ebsco.com/_next/image?url=%2Fim... https://www.ebsco.com/_next/image?url=%2Fimages%2Ftrending-topics%2Fautism-awareness-month.jpeg&w=640&q=75 — 200 — 18.2 KiB — 158 ms — h3https://www.ebsco.com/_next/static/chunks/webpack-71b6b6cfc2d54794.jswww.ebsco.com/_next/static/chunks/w... https://www.ebsco.com/_next/static/chunks/webpack-71b6b6cfc2d54794.js — 200 — 3.1 KiB — 17 ms — h3https://www.ebsco.com/_next/static/chunks/4bd1b696-c023c6e3521b1417.jswww.ebsco.com/_next/static/chunks/4... https://www.ebsco.com/_next/static/chunks/4bd1b696-c023c6e3521b1417.js — 200 — 54.6 KiB — 96 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 1172ms · 492KB · €13/mo
cmp.osano.com
Other
Costly
Execution 320ms
Transfer 54 KB
Monthly Cost €3/mo
www.ebsco.com
Other
Costly
Execution 222ms
Transfer 20 KB
Monthly Cost €2/mo
Unattributable
Other
Optional
Execution 163ms
Transfer 0 KB
Monthly Cost €2/mo
www.ebsco.com
Other
Optional
Execution 144ms
Transfer 46 KB
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 127ms
Transfer 158 KB
Unused 42%
Monthly Cost €1/mo
www.ebsco.com
Other
Optional
Execution 121ms
Transfer 88 KB
Unused 73%
Monthly Cost €1/mo
Google Tag Manager
Tag Manager
Optional
Execution 75ms
Transfer 125 KB
Unused 50%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • cmp.osano.com adds 320ms and costs ~€3/month
  • www.ebsco.com adds 222ms and costs ~€2/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

cmp.osano.com takes 320ms 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.ebsco.com takes 222ms 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

73% of www.ebsco.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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