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https://ielts.org

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
70
GRADE
C
FIX
5
REVIEW
1
PASS
9
INFO
2

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

65
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
91
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
92
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.

1.79 s

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

3.10 s

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

1.41 s

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

0.021

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

4.39 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.

19.21 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
9 PASS 1 REVIEW 5 FIX
F
Page Weight Budget
Action
3.0 MB transferred, 53 requests
FIX
3.0 MB transferred, 53 requests
Warning::
Page weighs 8.1 MB (3.0 MB transferred)
Warning::
JavaScript is 2.1 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 2.1 MB
Info::
Fonts are 419 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 419 KB
Info::
53 HTTP requests
Info::
Estimated 0.62 g CO2 per page load
3.0 MB / 2.4 MB budget
3.0 MB transferred
53 requests
0.62 g CO2 per page load
JavaScript 2.1 MiB 72%
Fonts 419.3 KiB 14%
Images 253.7 KiB 8%
HTML 73.7 KiB 2%
CSS 67.0 KiB 2%
Other 38.5 KiB 1%
Other 2.5 KiB 0%
Other 1.7 KiB 0%
Other 854 B 0%
0 2.4 MB 4.9 MB
Over budget

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

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

D
Third-Party Impact
Action
76% third-party, 0 ms blocking
FIX
76% third-party, 0 ms blocking
Warning::
Third-party code accounts for 76% of page weight (2.3 MiB of 3.0 MiB)
Info::
Third-party blocking time is low (0 ms)
24%
76%
First-party Third-party
F
JS Execution Cost
Action
4005ms total JS execution
FIX
4005ms total JS execution
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 693ms CPU time
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-NNL...: 562ms CPU time
Warning::
Unattributable: 420ms CPU time
Warning::
https://ielts.org/: 416ms CPU time
Warning::
https://cdn-ukwest.onetrust.com/scripttemplates/20...: 382ms CPU time
Warning::
Third-party scripts: 3509ms (88% of total)

Main Thread Breakdown

Script Evaluation 63% Script Parsing & Compilation 14% Other 12% Style & Layout 5%
ScriptTotalScriptingParse/CompileParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js693ms571ms102ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NNLRXK562ms478ms61ms3rd
Unattributable420ms10ms0ms3rd
https://ielts.org/416ms26ms4ms1st
https://cdn-ukwest.onetrust.com/scripttemplates/202401.2.0/otBannerSdk.js382ms228ms96ms3rd
https://www.googletagmanager.com/gtag/js?id=G-X5M3D7HLQQ&cx=c&gtm=4e64k1274ms231ms39ms3rd
https://www.googletagmanager.com/gtag/js?id=G-444SGTFNSL&cx=c&gtm=4e64k1242ms203ms37ms3rd
https://www.googletagmanager.com/gtag/destination?id=DC-10628837&cx=c&gtm=4e64k1212ms148ms60ms3rd
https://www.googletagmanager.com/gtag/js?id=AW-17612866914&cx=c&gtm=4e64k1192ms147ms45ms3rd
https://www.googletagmanager.com/gtag/destination?id=DC-13517822&cx=c&gtm=4e64k1190ms148ms41ms3rd

Showing top 10 of 13 scripts

F
JS Bundles
Action
20 scripts, 1.2 MB unused
FIX
20 scripts, 1.2 MB unused
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 176 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 176 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/recaptcha/releases/gTpTIWh...: 176 KB unused (49%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://ielts.org/dist/js/main.js?1773649603: 77 KB unused (82%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/destination?...: 72 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.2 MB
1193 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB176 KB (49%)3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js362 KB176 KB (49%)3rd
https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js0 KB176 KB (49%)3rd
https://ielts.org/dist/js/main.js?177364960394 KB77 KB (82%)1st
https://www.googletagmanager.com/gtag/destination?id=DC-13517822&cx=c&gtm=4e64k1150 KB72 KB (48%)3rd
https://www.googletagmanager.com/gtag/destination?id=AW-1010674422&cx=c&gtm=4e64k1144 KB71 KB (49%)3rd
https://www.googletagmanager.com/gtag/destination?id=AW-1010263145&cx=c&gtm=4e64k1146 KB67 KB (46%)3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NNLRXK181 KB66 KB (36%)3rd
https://www.googletagmanager.com/gtag/js?id=G-444SGTFNSL&cx=c&gtm=4e64k1173 KB65 KB (38%)3rd
https://www.googletagmanager.com/gtag/destination?id=DC-10628837&cx=c&gtm=4e64k1130 KB65 KB (50%)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
53 resources · 3.0 MB · 1.2 MB savings available
FIX
53 resources · 3.0 MB · 1.2 MB savings available
Warning::
Page weight 2.0 MB over 1MB target
Got: 3.0 MB Expected: ≤ 1 MB
Info::
~1.2 MB of savings available
Warning::
41 third-party resources (76% of weight)
Info::
2 resources over 200KB
53 resources · 3.0 MiB · 41 third-party 2.0 MiB over 1MB target
JavaScript 72% · 2.1 MiB
Font 14% · 419.3 KiB
Image 8% · 256.0 KiB
Document 2% · 73.7 KiB
CSS 2% · 70.9 KiB
Other 1% · 19.6 KiB

~1.2 MiB of savings available

Remove unused JavaScript: 1.2 MiB
B
Image Optimization
6 images, 0 KB saveable
REVIEW
6 images, 0 KB saveable
Info::
All images are well-optimized
6 images 254 KB
0 oversized -0 KB
6 legacy format
0 missing dimensions CLS risk
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
7 fonts (419 KB)
PASS
7 fonts (419 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

7

419 KB total

Render-blocking

0

of 7

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s FCP 1.8 s LCP 3.1 shttps://ielts.org/dist/fonts/318827f0769343af7fb3.woff2318827f0769343af7fb3.woff2 https://ielts.org/dist/fonts/318827f0769343af7fb3.woff2 — 68.3 KiB — 137 ms — font-display: swaphttps://ielts.org/dist/fonts/f3e79b3d83d8a599df08.woff2f3e79b3d83d8a599df08.woff2 https://ielts.org/dist/fonts/f3e79b3d83d8a599df08.woff2 — 57.3 KiB — 155 ms — font-display: swaphttps://ielts.org/dist/fonts/3ef06ba3c7099e63c9ce.woff23ef06ba3c7099e63c9ce.woff2 https://ielts.org/dist/fonts/3ef06ba3c7099e63c9ce.woff2 — 59.1 KiB — 155 ms — font-display: swaphttps://ielts.org/dist/fonts/9d947cfaf8059753b85c.woff29d947cfaf8059753b85c.woff2 https://ielts.org/dist/fonts/9d947cfaf8059753b85c.woff2 — 68.9 KiB — 169 ms — font-display: swaphttps://ielts.org/dist/fonts/e781c31572cc5a271d5b.woff2e781c31572cc5a271d5b.woff2 https://ielts.org/dist/fonts/e781c31572cc5a271d5b.woff2 — 67.9 KiB — 174 ms — font-display: swaphttps://ielts.org/dist/fonts/4a1a8ccb9c3b76efa174.woff24a1a8ccb9c3b76efa174.woff2 https://ielts.org/dist/fonts/4a1a8ccb9c3b76efa174.woff2 — 63.9 KiB — 174 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2KFO7CnqEu92Fr1ME7kSn66a... https://fonts.gstatic.com/s/roboto/v48/KFO7CnqEu92Fr1ME7kSn66aGLdTylUAMa3yUBHMdazQ.woff2 — 33.9 KiB — 85 ms — font-display: swap
318827f0769343af7fb3.woff2 woff2 swap
Size 68 KB
Load time 137 ms
Start 250 ms
Risk FOUT — text flashes from fallback to web font
f3e79b3d83d8a599df08.woff2 woff2 swap
Size 57 KB
Load time 155 ms
Start 250 ms
Risk FOUT — text flashes from fallback to web font
3ef06ba3c7099e63c9ce.woff2 woff2 swap
Size 59 KB
Load time 155 ms
Start 250 ms
Risk FOUT — text flashes from fallback to web font
9d947cfaf8059753b85c.woff2 woff2 swap
Size 69 KB
Load time 169 ms
Start 251 ms
Risk FOUT — text flashes from fallback to web font
e781c31572cc5a271d5b.woff2 woff2 swap
Size 68 KB
Load time 174 ms
Start 251 ms
Risk FOUT — text flashes from fallback to web font
4a1a8ccb9c3b76efa174.woff2 woff2 swap
Size 64 KB
Load time 174 ms
Start 251 ms
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 KB
Load time 85 ms
Start 989 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
5 hints, 0 missing preconnects
PASS
5 hints, 0 missing preconnects
Info::
Page uses 5 resource hint(s)

Current Resource Hints

preconnect
2
preload
3
dns-prefetch
prefetch

5 resource hints configured

A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Cloudflare

A+
HTTP Caching
max-age=600 (10 minutes)
PASS
max-age=600 (10 minutes)
Info::
Cache-Control header is set
Got: max-age=600, stale-while-revalidate=30, stale-if-error=86400
Info::
Effective TTL: 10 minutes (max-age=600)
Info::
Last-Modified header present
Cache-Control

max-age=600, stale-while-revalidate=30, stale-if-error=86400

DirectiveValueMeaning
max-age600Cache for 10 minutes
stale-while-revalidate30Serve stale for 30 seconds while fetching fresh
stale-if-error86400
Effective TTL: 600 seconds
Network Waterfall
53 requests over 1519ms
INFO
0 ms 1.0 s 2.0 s 3.0 s FCP 1.8 s LCP 3.1 shttps://ielts.org// https://ielts.org/ — 200 — 45.9 KiB — 106 ms — h2https://ielts.org/dist/css/main.css?1773649603/dist/css/main.css?1773649603 https://ielts.org/dist/css/main.css?1773649603 — 200 — 24.8 KiB — 86 ms — h2https://ielts.org/dist/js/main.js?1773649603/dist/js/main.js?1773649603 https://ielts.org/dist/js/main.js?1773649603 — 200 — 94.4 KiB — 103 ms — h2https://ielts.org/cdn/ielts-ui-and-design/homepage/busy-new-york-street.webp?width=933&fit=cover&s=WPA-CE1srx-_pcFI3TdDQ4oV7U8VKFWK-0oxMSEqZus/cdn/ielts-ui-and-design/homepage/b... https://ielts.org/cdn/ielts-ui-and-design/homepage/busy-new-york-street.webp?width=933&fit=cover&s=WPA-CE1srx-_pcFI3TdDQ4oV7U8VKFWK-0oxMSEqZus — 200 — 168.3 KiB — 119 ms — h2https://ielts.org/dist/images/favicon/site.webmanifest?1773649603/dist/images/favicon/site.webmanife... https://ielts.org/dist/images/favicon/site.webmanifest?1773649603 — 200 — 854 B — 135 ms — h3https://www.google.com/recaptcha/api.js?render=6LcI3iAlAAAAAA4do03y5qAzSgwzphsPdztu6mLfwww.google.com/recaptcha/api.js?ren... https://www.google.com/recaptcha/api.js?render=6LcI3iAlAAAAAA4do03y5qAzSgwzphsPdztu6mLf — 200 — 1.0 KiB — 71 ms — h3https://www.googletagmanager.com/gtm.js?id=GTM-NNLRXKwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-NNLRXK — 200 — 180.6 KiB — 185 ms — h2https://ielts.org/dist/fonts/318827f0769343af7fb3.woff2/dist/fonts/318827f0769343af7fb3.wo... https://ielts.org/dist/fonts/318827f0769343af7fb3.woff2 — 200 — 68.3 KiB — 137 ms — h3https://ielts.org/dist/fonts/f3e79b3d83d8a599df08.woff2/dist/fonts/f3e79b3d83d8a599df08.wo... https://ielts.org/dist/fonts/f3e79b3d83d8a599df08.woff2 — 200 — 57.3 KiB — 155 ms — h3https://ielts.org/dist/fonts/3ef06ba3c7099e63c9ce.woff2/dist/fonts/3ef06ba3c7099e63c9ce.wo... https://ielts.org/dist/fonts/3ef06ba3c7099e63c9ce.woff2 — 200 — 59.1 KiB — 155 ms — h3https://ielts.org/dist/fonts/9d947cfaf8059753b85c.woff2/dist/fonts/9d947cfaf8059753b85c.wo... https://ielts.org/dist/fonts/9d947cfaf8059753b85c.woff2 — 200 — 68.9 KiB — 169 ms — h3https://ielts.org/dist/fonts/e781c31572cc5a271d5b.woff2/dist/fonts/e781c31572cc5a271d5b.wo... https://ielts.org/dist/fonts/e781c31572cc5a271d5b.woff2 — 200 — 67.9 KiB — 174 ms — h3https://ielts.org/dist/fonts/4a1a8ccb9c3b76efa174.woff2/dist/fonts/4a1a8ccb9c3b76efa174.wo... https://ielts.org/dist/fonts/4a1a8ccb9c3b76efa174.woff2 — 200 — 63.9 KiB — 174 ms — h3https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.jswww.gstatic.com/recaptcha/releases/... https://www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js — 200 — 362.4 KiB — 201 ms — h2https://cdn-ukwest.onetrust.com/scripttemplates/otSDKStub.js?did=bd822df2-758c-4472-96b8-e1cce9862b4ecdn-ukwest.onetrust.com/scripttempl... https://cdn-ukwest.onetrust.com/scripttemplates/otSDKStub.js?did=bd822df2-758c-4472-96b8-e1cce9862b4e — 200 — 9.0 KiB — 73 ms — h2https://www.googletagmanager.com/gtag/js?id=G-444SGTFNSL&cx=c&gtm=4e64k1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-444SGTFNSL&cx=c&gtm=4e64k1 — 200 — 173.0 KiB — 79 ms — h2https://www.googletagmanager.com/gtag/js?id=AW-17612866914&cx=c&gtm=4e64k1www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=AW-17612866914&cx=c&gtm=4e64k1 — 200 — 143.4 KiB — 51 ms — h2https://www.google.com/recaptcha/api2/anchor?ar=1&k=6LcI3iAlAAAAAA4do03y5qAzSgwzphsPdztu6mLf&co=aHR0cHM6Ly9pZWx0cy5vcmc6NDQz&hl=en&v=gTpTIWhbKpxADzTzkcabhXN4&size=invisible&anchor-ms=20000&execute-ms=30000&cb=7cu4e0nfl6yiwww.google.com/recaptcha/api2/ancho... https://www.google.com/recaptcha/api2/anchor?ar=1&k=6LcI3iAlAAAAAA4do03y5qAzSgwzphsPdztu6mLf&co=aHR0cHM6Ly9pZWx0cy5vcmc6NDQz&hl=en&v=gTpTIWhbKpxADzTzkcabhXN4&size=invisible&anchor-ms=20000&execute-ms=30000&cb=7cu4e0nfl6yi — 200 — 27.8 KiB — 93 ms — h3https://pagead2.googlesyndication.com/ccm/collect?rcb=8&frm=0&en=page_view&dl=https%3A%2F%2Fielts.org%2F&scrsrc=www.googletagmanager.com&rnd=1698584010.1776898798&navt=n&npa=1&did=dYWJhMj&gdid=dYWJhMj&gtm=45be64k1v9232273550z872020908za20gzb72020908zd72020908xec&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938469~117266400~117384405&apve=1&apvf=f&apvc=1&tids=AW-17612866914&tid=AW-17612866914&tft=1776898797724&tfd=616pagead2.googlesyndication.com/ccm/c... https://pagead2.googlesyndication.com/ccm/collect?rcb=8&frm=0&en=page_view&dl=https%3A%2F%2Fielts.org%2F&scrsrc=www.googletagmanager.com&rnd=1698584010.1776898798&navt=n&npa=1&did=dYWJhMj&gdid=dYWJhMj&gtm=45be64k1v9232273550z872020908za20gzb72020908zd72020908xec&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938469~117266400~117384405&apve=1&apvf=f&apvc=1&tids=AW-17612866914&tid=AW-17612866914&tft=1776898797724&tfd=616 — 200 — 21 B — 88 ms — h3https://cdn-ukwest.onetrust.com/consent/bd822df2-758c-4472-96b8-e1cce9862b4e/bd822df2-758c-4472-96b8-e1cce9862b4e.jsoncdn-ukwest.onetrust.com/consent/bd8... https://cdn-ukwest.onetrust.com/consent/bd822df2-758c-4472-96b8-e1cce9862b4e/bd822df2-758c-4472-96b8-e1cce9862b4e.json — 200 — 2.2 KiB — 40 ms — h2https://cdn-ukwest.onetrust.com/scripttemplates/otSDKStub.jscdn-ukwest.onetrust.com/scripttempl... https://cdn-ukwest.onetrust.com/scripttemplates/otSDKStub.js — 200 — 8.6 KiB — 32 ms — 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h3https://www.googletagmanager.com/gtag/destination?id=AW-1010674422&cx=c&gtm=4e64k1www.googletagmanager.com/gtag/desti... https://www.googletagmanager.com/gtag/destination?id=AW-1010674422&cx=c&gtm=4e64k1 — 200 — 144.3 KiB — 96 ms — h3https://www.googletagmanager.com/gtag/destination?id=AW-1010263145&cx=c&gtm=4e64k1www.googletagmanager.com/gtag/desti... https://www.googletagmanager.com/gtag/destination?id=AW-1010263145&cx=c&gtm=4e64k1 — 200 — 146.1 KiB — 96 ms — h3https://www.googletagmanager.com/gtag/destination?id=DC-13517822&cx=c&gtm=4e64k1www.googletagmanager.com/gtag/desti... https://www.googletagmanager.com/gtag/destination?id=DC-13517822&cx=c&gtm=4e64k1 — 200 — 149.8 KiB — 96 ms — 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https://region1.google-analytics.com/g/collect?v=2&tid=G-X5M3D7HLQQ&gtm=45je64k1v887475706z872020908za20gzb72020908zd72020908&_p=1776898797315&gcs=G100&gcd=13p3pPp2p5l1&npa=1&dma_cps=-&dma=1&gdid=dYWJhMj&ecid=1171691882&_eu=AAAAAGA&are=1&cid=83171822.1776898798&ec_mode=a&frm=0&pscdl=denied&rcb=15&sr=412x823&uaa=&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uam=moto%20g%20power%20(2022)&uamb=1&uap=Android&uapv=11.0&uaw=0&ul=en-us&_s=1&tag_exp=0~115616986~115938466~115938468~117266401~117512542~117884344&sid=1776898798&sct=1&seg=0&dl=https%3A%2F%2Fielts.org%2F&dt=IELTS%20%7C%20Welcome%20to%20IELTS&en=page_view&_fv=1&_ss=1&ep.BC_Region=UK%20-%20E%20%26%20E&ep.Platform=Off%20Site&ep.Asset=UK%20-%20E%20%26%20E%20-%20IELTS&ep.GTM_Container_ID=GTM-NNLRXK&ep.Platform_Type=Off%20Platform%20-%20P-BCM&ep.SBU=Exams&epn.page_load_time=0&ep.previous_site_url=&tfd=1130 — 204 — 20 B — 39 ms — h3https://ade.googlesyndication.com/ddm/activity/src=10628837;type=remar0;cat=allpa0;rcb=10;ord=1;num=3495281180971;npa=1;u1=%2F;gdid=dYWJhMj;uaa=;uab=64;uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0;uamb=1;uam=moto%20g%20power%20(2022);uap=Android;uapv=11.0;uaw=0;pscdl=denied;frm=0;_tu=KJA;gtm=45fe64k1v9181775629z872020908za20gzb72020908zd72020908xea;gcs=G100;gcd=13p3pPp2p5l1;dma_cps=-;dma=1;dc_fmt=8;tag_exp=0~115938466~115938468~117266401~118128922;epver=2?ade.googlesyndication.com/ddm/activ... https://ade.googlesyndication.com/ddm/activity/src=10628837;type=remar0;cat=allpa0;rcb=10;ord=1;num=3495281180971;npa=1;u1=%2F;gdid=dYWJhMj;uaa=;uab=64;uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0;uamb=1;uam=moto%20g%20power%20(2022);uap=Android;uapv=11.0;uaw=0;pscdl=denied;frm=0;_tu=KJA;gtm=45fe64k1v9181775629z872020908za20gzb72020908zd72020908xea;gcs=G100;gcd=13p3pPp2p5l1;dma_cps=-;dma=1;dc_fmt=8;tag_exp=0~115938466~115938468~117266401~118128922;epver=2? — 200 — 401 B — 122 ms — h2https://pagead2.googlesyndication.com/ccm/collect?rcb=12&frm=0&ae=g&dl=https%3A%2F%2Fielts.org%2F&scrsrc=www.googletagmanager.com&rnd=1698584010.1776898798&navt=n&npa=1&did=dYWJhMj&gdid=dYWJhMj&_tu=KA&gtm=45be64k1v872624040z872020908za20gzb72020908zd72020908xea&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938468~117266401&apve=1&apvf=f&apvc=0&tids=AW-1010674422&tid=AW-1010674422&tft=1776898798381&tfd=1273pagead2.googlesyndication.com/ccm/c... https://pagead2.googlesyndication.com/ccm/collect?rcb=12&frm=0&ae=g&dl=https%3A%2F%2Fielts.org%2F&scrsrc=www.googletagmanager.com&rnd=1698584010.1776898798&navt=n&npa=1&did=dYWJhMj&gdid=dYWJhMj&_tu=KA&gtm=45be64k1v872624040z872020908za20gzb72020908zd72020908xea&gcs=G100&gcd=13p3p3p2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938468~117266401&apve=1&apvf=f&apvc=0&tids=AW-1010674422&tid=AW-1010674422&tft=1776898798381&tfd=1273 — 200 — 21 B — 44 ms — h3https://pagead2.googlesyndication.com/pagead/conversion/1010263145/?random=1776898798419&cv=11&fst=1776898798419&bg=ffffff&guid=ON&async=1&en=conversion&gtm=45be64k1v9101606014z872020908za20gzb72020908zd72020908xea&gcs=G100&gcd=13p3pPp2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938469~117266401&u_w=412&u_h=823&url=https%3A%2F%2Fielts.org%2F&rcb=1&label=9fn7CLuj7pUYEOnI3eED&frm=0&tiba=IELTS%20%7C%20Welcome%20to%20IELTS&did=dYWJhMj&gdid=dYWJhMj&bttype=purchase&value=0&hn=www.googleadservices.com&npa=1&pscdl=denied&uaa=&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uamb=1&uam=moto%20g%20power%20(2022)&uap=Android&uapv=11.0&uaw=0&_tu=KA&category=acrcp_v1_512&fmt=8pagead2.googlesyndication.com/pagea... https://pagead2.googlesyndication.com/pagead/conversion/1010263145/?random=1776898798419&cv=11&fst=1776898798419&bg=ffffff&guid=ON&async=1&en=conversion&gtm=45be64k1v9101606014z872020908za20gzb72020908zd72020908xea&gcs=G100&gcd=13p3pPp2p5l1&dma_cps=-&dma=1&tag_exp=0~115938466~115938469~117266401&u_w=412&u_h=823&url=https%3A%2F%2Fielts.org%2F&rcb=1&label=9fn7CLuj7pUYEOnI3eED&frm=0&tiba=IELTS%20%7C%20Welcome%20to%20IELTS&did=dYWJhMj&gdid=dYWJhMj&bttype=purchase&value=0&hn=www.googleadservices.com&npa=1&pscdl=denied&uaa=&uab=64&uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0&uamb=1&uam=moto%20g%20power%20(2022)&uap=Android&uapv=11.0&uaw=0&_tu=KA&category=acrcp_v1_512&fmt=8 — 204 — 21 B — 84 ms — h3https://ade.googlesyndication.com/ddm/activity/src=13517822;type=rmkt-0;cat=rmkt-3;rcb=7;ord=1;num=790217532248;npa=1;u7=%2F;gdid=dYWJhMj;uaa=;uab=64;uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0;uamb=1;uam=moto%20g%20power%20(2022);uap=Android;uapv=11.0;uaw=0;pscdl=denied;frm=0;user_data_mode=a;_tu=KJA;gtm=45fe64k1v9168138080z872020908za20gzb72020908zd72020908xea;gcs=G100;gcd=13p3p3V2p5l1;dma_cps=-;dma=1;dc_fmt=8;tag_exp=0~115616986~115938466~115938469~117266400~117884344;epver=2;~oref=https%3A%2F%2Fielts.org%2F?ade.googlesyndication.com/ddm/activ... https://ade.googlesyndication.com/ddm/activity/src=13517822;type=rmkt-0;cat=rmkt-3;rcb=7;ord=1;num=790217532248;npa=1;u7=%2F;gdid=dYWJhMj;uaa=;uab=64;uafvl=Chromium%3B147.0.7727.101%7CNot.A%252FBrand%3B8.0.0.0;uamb=1;uam=moto%20g%20power%20(2022);uap=Android;uapv=11.0;uaw=0;pscdl=denied;frm=0;user_data_mode=a;_tu=KJA;gtm=45fe64k1v9168138080z872020908za20gzb72020908zd72020908xea;gcs=G100;gcd=13p3p3V2p5l1;dma_cps=-;dma=1;dc_fmt=8;tag_exp=0~115616986~115938466~115938469~117266400~117884344;epver=2;~oref=https%3A%2F%2Fielts.org%2F? — 200 — 107 B — 35 ms — h2https://ielts.org/dist/images/favicon/favicon-32x32.png?1773649603/dist/images/favicon/favicon-32x32.... https://ielts.org/dist/images/favicon/favicon-32x32.png?1773649603 — 200 — 1.7 KiB — 64 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
88% of JavaScript execution is third-party
First-party Third-party 3509ms · 1345KB · €38/mo
www.gstatic.com
Other
Costly
Execution 693ms
Transfer 0 KB
Unused 49%
Monthly Cost €8/mo
Google Tag Manager
Tag Manager
Costly
Execution 562ms
Transfer 181 KB
Unused 36%
Monthly Cost €6/mo
Unattributable
Other
Costly
Execution 420ms
Transfer 0 KB
Monthly Cost €5/mo
cdn-ukwest.onetrust.com
Other
Costly
Execution 382ms
Transfer 104 KB
Unused 52%
Monthly Cost €4/mo
Google Tag Manager
Tag Manager
Costly
Execution 274ms
Transfer 174 KB
Unused 37%
Monthly Cost €3/mo
Google Tag Manager
Tag Manager
Costly
Execution 242ms
Transfer 173 KB
Unused 38%
Monthly Cost €3/mo
Google Tag Manager
Tag Manager
Costly
Execution 212ms
Transfer 130 KB
Unused 50%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 192ms
Transfer 143 KB
Unused 45%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 190ms
Transfer 150 KB
Unused 48%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 188ms
Transfer 146 KB
Unused 46%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 155ms
Transfer 144 KB
Unused 49%
Monthly Cost €2/mo

These scripts may cost more than they're worth

  • www.gstatic.com adds 693ms and costs ~€8/month
  • Google Tag Manager adds 562ms and costs ~€6/month
  • Unattributable adds 420ms and costs ~€5/month
  • cdn-ukwest.onetrust.com adds 382ms and costs ~€4/month
  • Google Tag Manager adds 274ms and costs ~€3/month
  • Google Tag Manager adds 242ms and costs ~€3/month
  • Google Tag Manager adds 212ms and costs ~€2/month

88% 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.gstatic.com takes 693ms 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 562ms 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 420ms 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

cdn-ukwest.onetrust.com takes 382ms 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

52% of cdn-ukwest.onetrust.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

Google Tag Manager takes 274ms 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 242ms 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 212ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.

Why this matters

This script has high main-thread execution time — optimize hot paths or defer.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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