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https://proquest.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
78
GRADE
C
FIX
4
REVIEW
4
PASS
7
INFO
2

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

Mobile Desktop
62
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
97
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.
83
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.

3.38 s

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

13.16 s

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

178 ms

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

0.016

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

5.16 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.

13.58 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 4 REVIEW 4 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 (1.9 MiB of 1.9 MiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2040ms total JS execution
FIX
2040ms total JS execution
Warning::
https://www.proquest.com/: 761ms CPU time
Warning::
Unattributable: 443ms CPU time
Warning::
https://cdn.cookielaw.org/scripttemplates/202403.1...: 314ms CPU time
Info::
https://www.proquest.com/assets/stack/z9f60173b/en...: 225ms CPU time
Info::
https://www.proquest.com/assets/stack/z46eac94d/en...: 149ms CPU time
Warning::
Third-party scripts: 2040ms (100% of total)

Main Thread Breakdown

Script Evaluation 37% Other 33% Style & Layout 13% Script Parsing & Compilation 8% Rendering 5% Parse HTML & CSS 4%
ScriptTotalScriptingParse/CompileParty
https://www.proquest.com/761ms14ms16ms3rd
Unattributable443ms92ms0ms3rd
https://cdn.cookielaw.org/scripttemplates/202403.1.0/otBannerSdk.js314ms197ms52ms3rd
https://www.proquest.com/assets/stack/z9f60173b/en/core.js225ms176ms28ms3rd
https://www.proquest.com/assets/stack/z46eac94d/en/os-std.js149ms91ms41ms3rd
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js74ms61ms9ms3rd
https://cdn.cookielaw.org/scripttemplates/otSDKStub.js74ms55ms3ms3rd
D
Page Weight Inventory
Action
66 resources · 1.9 MB · 219 KB savings available
FIX
66 resources · 1.9 MB · 219 KB savings available
Warning::
Page weight 911 KB over 1MB target
Got: 1.9 MB Expected: ≤ 1 MB
Info::
~219 KB of savings available
Warning::
65 third-party resources (100% of weight)
Info::
1 resources over 200KB
66 resources · 1.9 MiB · 65 third-party 911.2 KiB over 1MB target
Image 54% · 1.0 MiB
JavaScript 21% · 411.5 KiB
Font 15% · 289.7 KiB
CSS 7% · 141.9 KiB
Other 2% · 40.9 KiB
Document 1% · 14.2 KiB

~218.9 KiB of savings available

Remove unused JavaScript: 218.9 KiB
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.

C
Page Weight Budget
Action
1.9 MB transferred, 66 requests
REVIEW
1.9 MB transferred, 66 requests
Info::
Page weighs 3.8 MB (1.9 MB transferred)
Warning::
Images are 1.0 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 1.0 MB
Info::
Fonts are 290 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 290 KB
Info::
66 HTTP requests
Info::
Estimated 0.40 g CO2 per page load
1.9 MB / 2.4 MB budget
1.9 MB transferred
66 requests
0.40 g CO2 per page load
Images 1.0 MiB 53%
JavaScript 411.5 KiB 21%
Fonts 289.7 KiB 15%
CSS 137.6 KiB 7%
Other 42.0 KiB 2%
HTML 13.3 KiB 1%
Other 3.4 KiB 0%
Other 2.7 KiB 0%
Other 434 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

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

B
Image Optimization
15 images, 0 KB saveable
REVIEW
15 images, 0 KB saveable
Info::
All images are well-optimized
15 images 1.0 MB
0 oversized -0 KB
15 legacy format
0 missing dimensions CLS risk
C
JS Bundles
Action
24 scripts, 219 KB unused
REVIEW
24 scripts, 219 KB unused
Warning::
https://www.proquest.com/assets/stack/z46eac94d/en...: 71 KB unused (88%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.proquest.com/assets/stack/z9f60173b/en...: 62 KB unused (62%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdn.cookielaw.org/scripttemplates/202403.1...: 56 KB unused (53%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.proquest.com/assets/stack/z221a9c9/en/...: 30 KB unused (88%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 219 KB
219 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.proquest.com/assets/stack/z46eac94d/en/os-std.js81 KB71 KB (88%)✓3rd
https://www.proquest.com/assets/stack/z9f60173b/en/core.js100 KB62 KB (62%)✓3rd
https://cdn.cookielaw.org/scripttemplates/202403.1.0/otBannerSdk.js107 KB56 KB (53%)✓3rd
https://www.proquest.com/assets/stack/z221a9c9/en/pqc.js34 KB30 KB (88%)✓3rd
https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c12417176891760157 KB—✓3rd
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/extensions/mml2jax.js?V=2.7.72 KB—✓3rd
https://cdn.cookielaw.org/consent/15495670-c116-4ad3-bb4d-1625f90d192d/OtAutoBlock.js6 KB—✓3rd
https://cdn.socket.io/4.7.4/socket.io.min.js15 KB—✓3rd
https://www.proquest.com/assets/meta/z39b00c51/js/pqEarly.js2 KB—✓3rd
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/jax/input/TeX/config.js?V=2.7.71 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

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
4 fonts (290 KB)
PASS
4 fonts (290 KB)
Info::
4 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

4

290 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 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 3.4 s LCP 13.2 shttps://www.proquest.com/assets/meta/z50734376/uxframework/fonts/SourceSans3VF-Upright.ttf.woff2SourceSans3VF-Upright.t... https://www.proquest.com/assets/meta/z50734376/uxframework/fonts/SourceSans3VF-Upright.ttf.woff2 — 166.5 KiB — 31 ms — font-display: swaphttps://www.proquest.com/assets/meta/148a469e/uxframework/fonts/aleo-regular-webfont.woffaleo-regular-webfont.woff https://www.proquest.com/assets/meta/148a469e/uxframework/fonts/aleo-regular-webfont.woff — 40.8 KiB — 38 ms — font-display: swaphttps://www.proquest.com/assets/meta/z76f4d677/uxframework/fonts/roboto-slab-v13-vietnamese_latin-ext_latin_greek-ext_greek_cyrillic-ext_cyrillic-regular.woff2roboto-slab-v13-vietnam... https://www.proquest.com/assets/meta/z76f4d677/uxframework/fonts/roboto-slab-v13-vietnamese_latin-ext_latin_greek-ext_greek_cyrillic-ext_cyrillic-regular.woff2 — 56.0 KiB — 32 ms — font-display: swaphttps://www.proquest.com/assets/meta/798589a7/uxframework/fonts/UX-Framework.woffUX-Framework.woff https://www.proquest.com/assets/meta/798589a7/uxframework/fonts/UX-Framework.woff — 26.4 KiB — 33 ms — font-display: swap
SourceSans3VF-Upright.t... woff2 swap
Size 166 KB
Load time 31 ms
Start 916 ms
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
aleo-regular-webfont.woff woff swap
Size 41 KB
Load time 38 ms
Start 919 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
roboto-slab-v13-vietnam... woff2 swap
Size 56 KB
Load time 32 ms
Start 919 ms
Risk FOUT — text flashes from fallback to web font
UX-Framework.woff woff swap
Size 26 KB
Load time 33 ms
Start 920 ms
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)

Fixing the unchecked items could save ~103 KB and ~206 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
66 requests over 1369ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 3.4 s LCP 13.2 shttps://proquest.com// https://proquest.com/ — 301 — 45 B — 295 ms — h2https://www.proquest.com/www.proquest.com/ https://www.proquest.com/ — 302 — 931 B — 263 ms — h2https://www.proquest.com/www.proquest.com/ https://www.proquest.com/ — 200 — 13.3 KiB — 139 ms — h2https://cdn.cookielaw.org/consent/15495670-c116-4ad3-bb4d-1625f90d192d/OtAutoBlock.jscdn.cookielaw.org/consent/15495670-... https://cdn.cookielaw.org/consent/15495670-c116-4ad3-bb4d-1625f90d192d/OtAutoBlock.js — 200 — 5.7 KiB — 91 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 78 ms — h2https://www.proquest.com/assets/meta/z39b00c51/js/pqEarly.jswww.proquest.com/assets/meta/z39b00... https://www.proquest.com/assets/meta/z39b00c51/js/pqEarly.js — 200 — 2.2 KiB — 51 ms — h2https://cdn.socket.io/4.7.4/socket.io.min.jscdn.socket.io/4.7.4/socket.io.min.j... https://cdn.socket.io/4.7.4/socket.io.min.js — 200 — 15.1 KiB — 114 ms — h2https://www.proquest.com/assets/meta/z1b99b3ce/tapestry5/font_awesome/css/font-awesome.csswww.proquest.com/assets/meta/z1b99b... https://www.proquest.com/assets/meta/z1b99b3ce/tapestry5/font_awesome/css/font-awesome.css — 200 — 7.2 KiB — 24 ms — h2https://www.proquest.com/assets/meta/1/tapestry/css/bootstrap.csswww.proquest.com/assets/meta/1/tape... https://www.proquest.com/assets/meta/1/tapestry/css/bootstrap.css — 200 — 101 B — 41 ms — h2https://www.proquest.com/assets/meta/z2469fe2a/tapestry5/tapestry.csswww.proquest.com/assets/meta/z2469f... https://www.proquest.com/assets/meta/z2469fe2a/tapestry5/tapestry.css — 200 — 603 B — 45 ms — h2https://www.proquest.com/assets/meta/z26e86fe4/tapestry5/exception-frame.csswww.proquest.com/assets/meta/z26e86... https://www.proquest.com/assets/meta/z26e86fe4/tapestry5/exception-frame.css — 200 — 341 B — 26 ms — h2https://www.proquest.com/assets/meta/z9bbb7ab0/tapestry5/tapestry-console.csswww.proquest.com/assets/meta/z9bbb7... https://www.proquest.com/assets/meta/z9bbb7ab0/tapestry5/tapestry-console.css — 200 — 341 B — 43 ms — h2https://www.proquest.com/assets/meta/zb460e7a1/tapestry5/tree.csswww.proquest.com/assets/meta/zb460e... https://www.proquest.com/assets/meta/zb460e7a1/tapestry5/tree.css — 200 — 569 B — 38 ms — h2https://www.proquest.com/assets/meta/pqc/z20f77a5/toast/animate.csswww.proquest.com/assets/meta/pqc/z2... https://www.proquest.com/assets/meta/pqc/z20f77a5/toast/animate.css — 200 — 4.4 KiB — 27 ms — h2https://www.proquest.com/assets/meta/z407a2df9/styles/master.csswww.proquest.com/assets/meta/z407a2... https://www.proquest.com/assets/meta/z407a2df9/styles/master.css — 200 — 122.7 KiB — 54 ms — h2https://www.proquest.com/assets/ctx/f4326488/images/openlayer/PQ_Open_MyResearch.jpgwww.proquest.com/assets/ctx/f432648... https://www.proquest.com/assets/ctx/f4326488/images/openlayer/PQ_Open_MyResearch.jpg — 200 — 42.8 KiB — 27 ms — h2https://www.proquest.com/assets/ctx/226656d3/images/openlayer/PQ_Open_Translate.jpgwww.proquest.com/assets/ctx/226656d... https://www.proquest.com/assets/ctx/226656d3/images/openlayer/PQ_Open_Translate.jpg — 200 — 96.5 KiB — 31 ms — h2https://www.proquest.com/assets/ctx/e78dc4a9/images/openlayer/PQ_Open_Cite.jpgwww.proquest.com/assets/ctx/e78dc4a... https://www.proquest.com/assets/ctx/e78dc4a9/images/openlayer/PQ_Open_Cite.jpg — 200 — 31.8 KiB — 21 ms — h2https://www.proquest.com/assets/ctx/39ef348f/images/openlayer/PQ_Open_PDF.jpgwww.proquest.com/assets/ctx/39ef348... https://www.proquest.com/assets/ctx/39ef348f/images/openlayer/PQ_Open_PDF.jpg — 200 — 28.4 KiB — 27 ms — h2https://www.proquest.com/assets/ctx/9867d8ae/images/openlayer/PQ_Open_Save.jpgwww.proquest.com/assets/ctx/9867d8a... https://www.proquest.com/assets/ctx/9867d8ae/images/openlayer/PQ_Open_Save.jpg — 200 — 92.2 KiB — 17 ms — h2https://www.proquest.com/assets/stack/z9f60173b/en/core.jswww.proquest.com/assets/stack/z9f60... https://www.proquest.com/assets/stack/z9f60173b/en/core.js — 200 — 100.0 KiB — 23 ms — h2https://www.proquest.com/assets/ctx/zbdef5f4e/manifest.jsonwww.proquest.com/assets/ctx/zbdef5f... https://www.proquest.com/assets/ctx/zbdef5f4e/manifest.json — 200 — 434 B — 112 ms — h2https://cdn.cookielaw.org/consent/15495670-c116-4ad3-bb4d-1625f90d192d/15495670-c116-4ad3-bb4d-1625f90d192d.jsoncdn.cookielaw.org/consent/15495670-... https://cdn.cookielaw.org/consent/15495670-c116-4ad3-bb4d-1625f90d192d/15495670-c116-4ad3-bb4d-1625f90d192d.json — 200 — 2.7 KiB — 81 ms — h2https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.jscdnjs.cloudflare.com/ajax/libs/math... https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.7/MathJax.js — 200 — 17.3 KiB — 115 ms — h3https://www.proquest.com/assets/ctx/51be0a5b/images/icons/blank.gifwww.proquest.com/assets/ctx/51be0a5... https://www.proquest.com/assets/ctx/51be0a5b/images/icons/blank.gif — 200 — 137 B — 28 ms — h2https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015 — 200 — 6.9 KiB — 108 ms — h2https://www.proquest.com/assets/ctx/zed58a134/styles/PrintLayout.csswww.proquest.com/assets/ctx/zed58a1... https://www.proquest.com/assets/ctx/zed58a134/styles/PrintLayout.css — 200 — 1.4 KiB — 29 ms — h2https://pq-static-content.proquest.com/onesearch/prod/main/2026.3.0.10119/images/open-layer/image-2.jpgpq-static-content.proquest.com/ones... https://pq-static-content.proquest.com/onesearch/prod/main/2026.3.0.10119/images/open-layer/image-2.jpg — 200 — 638.3 KiB — 204 ms — h2https://www.proquest.com/assets/meta/31b8cbc0/images/icons/auth-login.pngwww.proquest.com/assets/meta/31b8cb... https://www.proquest.com/assets/meta/31b8cbc0/images/icons/auth-login.png — 200 — 3.8 KiB — 20 ms — h2https://pq-static-content.proquest.com/onesearch/prod/main/2026.3.0.10119/images/company-branding/pq-logo.svgpq-static-content.proquest.com/ones... https://pq-static-content.proquest.com/onesearch/prod/main/2026.3.0.10119/images/company-branding/pq-logo.svg — 200 — 10.6 KiB — 132 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s FCP 3.4 s LCP 13.2 shttps://proquest.com// https://proquest.com/ — 301 — 45 B — 295 ms — h2https://www.proquest.com/www.proquest.com/ https://www.proquest.com/ — 302 — 931 B — 263 ms — h2https://www.proquest.com/www.proquest.com/ https://www.proquest.com/ — 200 — 13.3 KiB — 139 ms — h2https://cdn.cookielaw.org/consent/15495670-c116-4ad3-bb4d-1625f90d192d/OtAutoBlock.jscdn.cookielaw.org/consent/15495670-... https://cdn.cookielaw.org/consent/15495670-c116-4ad3-bb4d-1625f90d192d/OtAutoBlock.js — 200 — 5.7 KiB — 91 ms — h2https://cdn.cookielaw.org/scripttemplates/otSDKStub.jscdn.cookielaw.org/scripttemplates/o... https://cdn.cookielaw.org/scripttemplates/otSDKStub.js — 200 — 9.1 KiB — 78 ms — h2https://www.proquest.com/assets/meta/z39b00c51/js/pqEarly.jswww.proquest.com/assets/meta/z39b00... https://www.proquest.com/assets/meta/z39b00c51/js/pqEarly.js — 200 — 2.2 KiB — 51 ms — h2https://cdn.socket.io/4.7.4/socket.io.min.jscdn.socket.io/4.7.4/socket.io.min.j... https://cdn.socket.io/4.7.4/socket.io.min.js — 200 — 15.1 KiB — 114 ms — h2https://www.proquest.com/assets/meta/z1b99b3ce/tapestry5/font_awesome/css/font-awesome.csswww.proquest.com/assets/meta/z1b99b... https://www.proquest.com/assets/meta/z1b99b3ce/tapestry5/font_awesome/css/font-awesome.css — 200 — 7.2 KiB — 24 ms — h2https://www.proquest.com/assets/meta/1/tapestry/css/bootstrap.csswww.proquest.com/assets/meta/1/tape... https://www.proquest.com/assets/meta/1/tapestry/css/bootstrap.css — 200 — 101 B — 41 ms — h2https://www.proquest.com/assets/meta/z2469fe2a/tapestry5/tapestry.csswww.proquest.com/assets/meta/z2469f... https://www.proquest.com/assets/meta/z2469fe2a/tapestry5/tapestry.css — 200 — 603 B — 45 ms — h2https://www.proquest.com/assets/meta/z26e86fe4/tapestry5/exception-frame.csswww.proquest.com/assets/meta/z26e86... https://www.proquest.com/assets/meta/z26e86fe4/tapestry5/exception-frame.css — 200 — 341 B — 26 ms — h2https://www.proquest.com/assets/meta/z9bbb7ab0/tapestry5/tapestry-console.csswww.proquest.com/assets/meta/z9bbb7... https://www.proquest.com/assets/meta/z9bbb7ab0/tapestry5/tapestry-console.css — 200 — 341 B — 43 ms — h2https://www.proquest.com/assets/meta/zb460e7a1/tapestry5/tree.csswww.proquest.com/assets/meta/zb460e... https://www.proquest.com/assets/meta/zb460e7a1/tapestry5/tree.css — 200 — 569 B — 38 ms — h2https://www.proquest.com/assets/meta/pqc/z20f77a5/toast/animate.csswww.proquest.com/assets/meta/pqc/z2... https://www.proquest.com/assets/meta/pqc/z20f77a5/toast/animate.css — 200 — 4.4 KiB — 27 ms — h2https://www.proquest.com/assets/meta/z407a2df9/styles/master.csswww.proquest.com/assets/meta/z407a2... https://www.proquest.com/assets/meta/z407a2df9/styles/master.css — 200 — 122.7 KiB — 54 ms — h2https://www.proquest.com/assets/ctx/f4326488/images/openlayer/PQ_Open_MyResearch.jpgwww.proquest.com/assets/ctx/f432648... https://www.proquest.com/assets/ctx/f4326488/images/openlayer/PQ_Open_MyResearch.jpg — 200 — 42.8 KiB — 27 ms — h2https://www.proquest.com/assets/ctx/226656d3/images/openlayer/PQ_Open_Translate.jpgwww.proquest.com/assets/ctx/226656d... https://www.proquest.com/assets/ctx/226656d3/images/openlayer/PQ_Open_Translate.jpg — 200 — 96.5 KiB — 31 ms — h2https://www.proquest.com/assets/ctx/e78dc4a9/images/openlayer/PQ_Open_Cite.jpgwww.proquest.com/assets/ctx/e78dc4a... https://www.proquest.com/assets/ctx/e78dc4a9/images/openlayer/PQ_Open_Cite.jpg — 200 — 31.8 KiB — 21 ms — h2https://www.proquest.com/assets/ctx/39ef348f/images/openlayer/PQ_Open_PDF.jpgwww.proquest.com/assets/ctx/39ef348... https://www.proquest.com/assets/ctx/39ef348f/images/openlayer/PQ_Open_PDF.jpg — 200 — 28.4 KiB — 27 ms — h2https://www.proquest.com/assets/ctx/9867d8ae/images/openlayer/PQ_Open_Save.jpgwww.proquest.com/assets/ctx/9867d8a... https://www.proquest.com/assets/ctx/9867d8ae/images/openlayer/PQ_Open_Save.jpg — 200 — 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https://www.proquest.com/assets/ctx/51be0a5b/images/icons/blank.gif — 200 — 137 B — 28 ms — h2https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015 — 200 — 6.9 KiB — 108 ms — h2https://www.proquest.com/assets/ctx/zed58a134/styles/PrintLayout.csswww.proquest.com/assets/ctx/zed58a1... https://www.proquest.com/assets/ctx/zed58a134/styles/PrintLayout.css — 200 — 1.4 KiB — 29 ms — h2https://pq-static-content.proquest.com/onesearch/prod/main/2026.3.0.10119/images/open-layer/image-2.jpgpq-static-content.proquest.com/ones... https://pq-static-content.proquest.com/onesearch/prod/main/2026.3.0.10119/images/open-layer/image-2.jpg — 200 — 638.3 KiB — 204 ms — h2https://www.proquest.com/assets/meta/31b8cbc0/images/icons/auth-login.pngwww.proquest.com/assets/meta/31b8cb... https://www.proquest.com/assets/meta/31b8cbc0/images/icons/auth-login.png — 200 — 3.8 KiB — 20 ms — h2https://pq-static-content.proquest.com/onesearch/prod/main/2026.3.0.10119/images/company-branding/pq-logo.svgpq-static-content.proquest.com/ones... https://pq-static-content.proquest.com/onesearch/prod/main/2026.3.0.10119/images/company-branding/pq-logo.svg — 200 — 10.6 KiB — 132 ms — h2https://www.proquest.com/assets/meta/z10941967/images/icons/use-tools/PQ-OL-Q.svgwww.proquest.com/assets/meta/z10941... https://www.proquest.com/assets/meta/z10941967/images/icons/use-tools/PQ-OL-Q.svg — 200 — 673 B — 36 ms — h2https://www.proquest.com/assets/meta/z249f66c4/images/icons/use-tools/PQ-OL-Product.svgwww.proquest.com/assets/meta/z249f6... https://www.proquest.com/assets/meta/z249f66c4/images/icons/use-tools/PQ-OL-Product.svg — 200 — 856 B — 56 ms — h2https://www.proquest.com/assets/meta/zd07842c9/images/icons/use-tools/PQ-OL-Chat.svgwww.proquest.com/assets/meta/zd0784... 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https://cdn.cookielaw.org/scripttemplates/202403.1.0/assets/otCommonStyles.css — 200 — 4.3 KiB — 34 ms — h2https://www.proquest.com/modules.gz/components/LogoCheck.jswww.proquest.com/modules.gz/compone... https://www.proquest.com/modules.gz/components/LogoCheck.js — 200 — 389 B — 27 ms — h2https://www.proquest.com/indexol.pagelayout.captureproxyhost:capturehost?_csrf=81dde741-5370-4835-91a3-8a8dd62d5ff1www.proquest.com/indexol.pagelayout... https://www.proquest.com/indexol.pagelayout.captureproxyhost:capturehost?_csrf=81dde741-5370-4835-91a3-8a8dd62d5ff1 — 200 — 278 B — 147 ms — h2https://cdn.cookielaw.org/logos/static/ot_guard_logo.svgcdn.cookielaw.org/logos/static/ot_g... https://cdn.cookielaw.org/logos/static/ot_guard_logo.svg — 200 — 692 B — 30 ms — h2https://cdn.cookielaw.org/logos/7636e208-dda4-4218-8026-e1bc155873fc/b5b350d7-02b5-4be2-9248-678ded33dc4d/eb4277f3-0c55-4ded-8dc2-8888e7b25f7f/Clarivate_Logo.jpgcdn.cookielaw.org/logos/7636e208-dd... 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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 2040ms · 328KB · £30/mo
www.proquest.com
Other
Costly
Execution 761ms
Transfer 13 KB
Monthly Cost £11/mo
Unattributable
Other
Costly
Execution 443ms
Transfer 0 KB
Monthly Cost £7/mo
OneTrust
Consent
Essential
Execution 314ms
Transfer 107 KB
Unused 53%
Monthly Cost £5/mo
www.proquest.com
Other
Costly
Execution 225ms
Transfer 100 KB
Unused 62%
Monthly Cost £3/mo
www.proquest.com
Other
Optional
Execution 149ms
Transfer 81 KB
Unused 88%
Monthly Cost £2/mo
cdnjs
CDN
Optional
Execution 74ms
Transfer 17 KB
Monthly Cost £1/mo
OneTrust
Consent
Essential
Execution 74ms
Transfer 9 KB
Monthly Cost £1/mo

These scripts may cost more than they're worth

  • www.proquest.com adds 761ms and costs ~£11/month
  • Unattributable adds 443ms and costs ~£7/month
  • www.proquest.com adds 225ms 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.proquest.com takes 761ms 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

Unattributable takes 443ms 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

53% 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

www.proquest.com takes 225ms 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

62% of www.proquest.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

88% of www.proquest.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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