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Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
85
GRADE
B
FIX
5
REVIEW
3
PASS
15
INFO
3

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

Mobile Desktop
56
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
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.

2.76 s

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

13.48 s

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

511 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.

3.81 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.

16.08 s

Page Load Progression

1.2 s
2.4 s
3.6 s
4.9 s
6.1 s
7.3 s
8.5 s
9.7 s
Checks
26
15 PASS 3 REVIEW 5 FIX
D
Page Weight Budget
Action
2.5 MB transferred, 76 requests
FIX
2.5 MB transferred, 76 requests
Warning::
Page weighs 6.0 MB (2.5 MB transferred)
Warning::
JavaScript is 1.1 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.1 MB
Info::
76 HTTP requests
Info::
Estimated 0.52 g CO2 per page load
2.5 MB / 2.4 MB budget
2.5 MB transferred
76 requests
0.52 g CO2 per page load
JavaScript 1.1 MiB 43%
Images 1007.6 KiB 40%
CSS 173.1 KiB 7%
Fonts 137.9 KiB 5%
HTML 55.6 KiB 2%
Other 43.5 KiB 2%
Other 31.1 KiB 1%
Other 814 B 0%
Other 0 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

F
JS Execution Cost
Action
21910ms total JS execution
FIX
21910ms total JS execution
Warning::
https://ailearnhub.net/: 13716ms CPU time
Warning::
https://ailearnhub.net/_next/static/chunks/8319-55...: 5343ms CPU time
Warning::
Unattributable: 1295ms CPU time
Warning::
https://ailearnhub.net/_next/static/chunks/3a1933e...: 395ms CPU time
Warning::
https://ailearnhub.net/_next/static/chunks/857-77f...: 284ms CPU time
Info::
Third-party scripts: 275ms (1% of total)

Main Thread Breakdown

Style & Layout 29% Other 28% Script Evaluation 27% Rendering 12%
ScriptTotalScriptingParse/CompileParty
https://ailearnhub.net/13716ms23ms47ms1st
https://ailearnhub.net/_next/static/chunks/8319-5558a51099377b41.js5343ms4879ms14ms1st
Unattributable1295ms12ms0ms1st
https://ailearnhub.net/_next/static/chunks/3a1933ef-9a24917e83d26ee1.js395ms87ms35ms1st
https://ailearnhub.net/_next/static/chunks/857-77f7e2b52e38d26a.js284ms228ms55ms1st
https://www.googletagmanager.com/gtag/js?id=G-5WTTQ88398275ms228ms44ms3rd
https://ailearnhub.net/_next/static/chunks/webpack-f3ef3df52906d1c7.js240ms223ms1ms1st
https://ailearnhub.net/_next/static/chunks/2762-70821536debe4006.js111ms86ms24ms1st
https://ailearnhub.net/_next/static/chunks/174-58c62be97ae88a65.js80ms72ms8ms1st
https://ailearnhub.net/_next/static/chunks/2090-0af1c734781421fa.js65ms64ms1ms1st

Showing top 10 of 12 scripts

D
JS Bundles
Action
48 scripts, 472 KB unused
FIX
48 scripts, 472 KB unused
Warning::
https://ailearnhub.net/_next/static/chunks/857-77f...: 156 KB unused (80%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://accounts.google.com/gsi/client: 72 KB unused (75%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-5WTT...: 70 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://ailearnhub.net/_next/static/chunks/2762-70...: 47 KB unused (68%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://ailearnhub.net/_next/static/chunks/6266-90...: 30 KB unused (96%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 472 KB
472 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://ailearnhub.net/_next/static/chunks/857-77f7e2b52e38d26a.js196 KB156 KB (80%)✓1st
https://accounts.google.com/gsi/client97 KB72 KB (75%)✓3rd
https://www.googletagmanager.com/gtag/js?id=G-5WTTQ88398168 KB70 KB (42%)✓3rd
https://ailearnhub.net/_next/static/chunks/2762-70821536debe4006.js72 KB47 KB (68%)✓1st
https://ailearnhub.net/_next/static/chunks/6266-909182ec55ccc71c.js32 KB30 KB (96%)✓1st
https://ailearnhub.net/_next/static/chunks/4606-a3c0e914725a51e7.js37 KB29 KB (79%)✓1st
https://ailearnhub.net/_next/static/chunks/7983-38a4998539d93983.js32 KB27 KB (84%)✓1st
https://ailearnhub.net/_next/static/chunks/app/(workspace)/generation-preview/page-adf105709510ca9b.js24 KB21 KB (88%)✓1st
https://ailearnhub.net/_next/static/chunks/7633-a2f967e7ad8ba54c.js22 KB20 KB (93%)✓1st
https://ailearnhub.net/_next/static/chunks/app/(locale)/%5Blocale%5D/(marketing)/%5B...slug%5D/page-2061b605367cc479.js6 KB—✓1st

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

D
Page Weight Inventory
Action
76 resources · 2.5 MB · 472 KB savings available
FIX
76 resources · 2.5 MB · 472 KB savings available
Warning::
Page weight 2.5 MB exceeds 1 MB target by 1.5 MB
Got: 2.5 MB Expected: ≤ 1 MB
Info::
~472 KB of savings available
Info::
6 third-party resources (11% of weight)
Info::
1 resources over 200KB
76 resources · 2.5 MiB · 6 third-party 1.5 MiB over 1MB target
JavaScript 43% · 1.1 MiB
Image 41% · 1.0 MiB
CSS 7% · 173.1 KiB
Font 5% · 137.9 KiB
Document 3% · 69.2 KiB
Other 1% · 18.3 KiB

~471.6 KiB of savings available

Remove unused JavaScript: 471.6 KiB
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: private, no-cache, no-store, max-age=0, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

private, no-cache, no-store, max-age=0, must-revalidate

DirectiveValueMeaning
private—Only browser cache, not CDN/proxy
no-cache—Cache but always revalidate first
no-store—Never cache this response
max-age0Cache for 0 seconds
must-revalidate—Must recheck with server after expiry
B
Image Optimization
5 images, 0 KB saveable
REVIEW
5 images, 0 KB saveable
Info::
All images are well-optimized
5 images 1008 KB
0 oversized -0 KB
5 legacy format
0 missing dimensions CLS risk
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
B
JavaScript Blocking
2 JS blocking issue(s) detected
REVIEW
2 JS blocking issue(s) detected
Warning::
1 render-blocking <script src> tag(s) without async/defer
Each `<script src=...>` without `async`, `defer`, or `type="module"` blocks HTML parsing while the browser fetches and executes it. The block lasts the entire round-trip + execution time -- on slow networks this translates directly into LCP delay. Add `defer` (executes after parse, in source order) for scripts that interact with the DOM, or `async` (executes whenever ready) for analytics / independent scripts. Module scripts (`type="module"`) are deferred by default.
Warning::
Total JS execution time is 21.9 s -- over the 3.5s budget
Total JavaScript execution (parse + compile + run) across all scripts exceeds 3.5 seconds. On low-end devices that becomes 7-15+ seconds and shows up directly in TBT and INP. Reduce by: tree-shaking unused dependencies, code-splitting (dynamic `import()`), removing or deferring third-party tracking, and replacing heavy frameworks where they're not needed.
A+
Third-Party Impact
11% third-party, 0 ms blocking
PASS
11% third-party, 0 ms blocking
Info::
Third-party code accounts for 11% of page weight (269.7 KiB of 2.5 MiB)
Info::
Third-party blocking time is low (0 ms)
89%
First-party Third-party
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 (138 KB)
PASS
2 fonts (138 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

138 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 FCP 2.8 s LCP 13.5 shttps://ailearnhub.net/_next/static/media/27834908180db20f-s.p.woff227834908180db20f-s.p.woff2 https://ailearnhub.net/_next/static/media/27834908180db20f-s.p.woff2 — 68.2 KiB — 57 ms — font-display: swaphttps://ailearnhub.net/_next/static/media/78fec81b34c4a365.p.woff278fec81b34c4a365.p.woff2 https://ailearnhub.net/_next/static/media/78fec81b34c4a365.p.woff2 — 69.7 KiB — 78 ms — font-display: swap
27834908180db20f-s.p.woff2 woff2 swap
Size 68 KB
Load time 57 ms
Start 394 ms
Risk FOUT — text flashes from fallback to web font
78fec81b34c4a365.p.woff2 woff2 swap
Size 70 KB
Load time 78 ms
Start 395 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
7 hints, 0 missing preconnects
PASS
7 hints, 0 missing preconnects
Info::
Page uses 7 resource hint(s)

Current Resource Hints

preconnect
3
preload
4
dns-prefetch
—
prefetch
—

7 resource hints configured

A+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
Compression Algorithm
Main response uses brotli
PASS
Main response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+
LCP Image Preload
LCP preload audit not available
PASS
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
PASS
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
Main HTML uses no-store -- correct for sensitive/dynamic content
Got: private, no-cache, no-store, max-age=0, must-revalidate
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: Cookie
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
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+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues 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

Network Waterfall
76 requests over 4183ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 2.8 s LCP 13.5 shttps://ailearnhub.net// https://ailearnhub.net/ — 200 — 55.6 KiB — 490 ms — h2https://ailearnhub.net/_next/static/media/27834908180db20f-s.p.woff2/_next/static/media/27834908180db20... https://ailearnhub.net/_next/static/media/27834908180db20f-s.p.woff2 — 200 — 68.2 KiB — 57 ms — h2https://ailearnhub.net/_next/static/media/78fec81b34c4a365.p.woff2/_next/static/media/78fec81b34c4a36... https://ailearnhub.net/_next/static/media/78fec81b34c4a365.p.woff2 — 200 — 69.7 KiB — 78 ms — h2https://ailearnhub.net/_next/static/css/9dae90f238ec9279.css/_next/static/css/9dae90f238ec9279.... https://ailearnhub.net/_next/static/css/9dae90f238ec9279.css — 200 — 729 B — 48 ms — h2https://ailearnhub.net/_next/static/css/d12c650ea665206a.css/_next/static/css/d12c650ea665206a.... https://ailearnhub.net/_next/static/css/d12c650ea665206a.css — 200 — 58.3 KiB — 70 ms — h2https://ailearnhub.net/_next/static/css/329432a5db7a11f3.css/_next/static/css/329432a5db7a11f3.... https://ailearnhub.net/_next/static/css/329432a5db7a11f3.css — 200 — 51.4 KiB — 72 ms — h2https://ailearnhub.net/logos/logo.png/logos/logo.png https://ailearnhub.net/logos/logo.png — 200 — 816.2 KiB — 192 ms — h2https://ailearnhub.net/_next/static/chunks/webpack-f3ef3df52906d1c7.js/_next/static/chunks/webpack-f3ef3d... https://ailearnhub.net/_next/static/chunks/webpack-f3ef3df52906d1c7.js — 200 — 3.6 KiB — 178 ms — h2https://ailearnhub.net/_next/static/chunks/3a1933ef-9a24917e83d26ee1.js/_next/static/chunks/3a1933ef-9a249... https://ailearnhub.net/_next/static/chunks/3a1933ef-9a24917e83d26ee1.js — 200 — 54.9 KiB — 120 ms — h2https://ailearnhub.net/_next/static/chunks/8319-5558a51099377b41.js/_next/static/chunks/8319-5558a5109... https://ailearnhub.net/_next/static/chunks/8319-5558a51099377b41.js — 200 — 45.4 KiB — 166 ms — h2https://ailearnhub.net/_next/static/chunks/main-app-5e542792a67b30e3.js/_next/static/chunks/main-app-5e542... https://ailearnhub.net/_next/static/chunks/main-app-5e542792a67b30e3.js — 200 — 529 B — 165 ms — h2https://ailearnhub.net/_next/static/chunks/561-059a930719ca5b0a.js/_next/static/chunks/561-059a930719... https://ailearnhub.net/_next/static/chunks/561-059a930719ca5b0a.js — 200 — 13.2 KiB — 134 ms — h2https://ailearnhub.net/_next/static/chunks/1367-4f4ffae9d6185fbb.js/_next/static/chunks/1367-4f4ffae9d... https://ailearnhub.net/_next/static/chunks/1367-4f4ffae9d6185fbb.js — 200 — 3.8 KiB — 175 ms — h2https://ailearnhub.net/_next/static/chunks/8454-fed6703f38c2054b.js/_next/static/chunks/8454-fed6703f3... https://ailearnhub.net/_next/static/chunks/8454-fed6703f38c2054b.js — 200 — 24.0 KiB — 134 ms — h2https://ailearnhub.net/_next/static/chunks/7633-a2f967e7ad8ba54c.js/_next/static/chunks/7633-a2f967e7a... https://ailearnhub.net/_next/static/chunks/7633-a2f967e7ad8ba54c.js — 200 — 22.1 KiB — 183 ms — h2https://ailearnhub.net/_next/static/chunks/3408-c4ba14c9d8197e02.js/_next/static/chunks/3408-c4ba14c9d... https://ailearnhub.net/_next/static/chunks/3408-c4ba14c9d8197e02.js — 200 — 5.6 KiB — 166 ms — h2https://ailearnhub.net/_next/static/chunks/9494-0a876be436c95f93.js/_next/static/chunks/9494-0a876be43... https://ailearnhub.net/_next/static/chunks/9494-0a876be436c95f93.js — 200 — 9.3 KiB — 166 ms — h2https://ailearnhub.net/_next/static/chunks/8778-18d6ed2a4a91fd76.js/_next/static/chunks/8778-18d6ed2a4... https://ailearnhub.net/_next/static/chunks/8778-18d6ed2a4a91fd76.js — 200 — 3.4 KiB — 175 ms — h2https://ailearnhub.net/_next/static/chunks/1674-e3cf144faf65bb7c.js/_next/static/chunks/1674-e3cf144fa... https://ailearnhub.net/_next/static/chunks/1674-e3cf144faf65bb7c.js — 200 — 2.3 KiB — 175 ms — h2https://ailearnhub.net/_next/static/chunks/2264-491ff1f5f526339b.js/_next/static/chunks/2264-491ff1f5f... https://ailearnhub.net/_next/static/chunks/2264-491ff1f5f526339b.js — 200 — 12.4 KiB — 135 ms — h2https://ailearnhub.net/_next/static/chunks/4424-702a9e19afa40f99.js/_next/static/chunks/4424-702a9e19a... https://ailearnhub.net/_next/static/chunks/4424-702a9e19afa40f99.js — 200 — 10.1 KiB — 166 ms — h2https://ailearnhub.net/_next/static/chunks/3831-fb3d131a4ac743c7.js/_next/static/chunks/3831-fb3d131a4... https://ailearnhub.net/_next/static/chunks/3831-fb3d131a4ac743c7.js — 200 — 3.7 KiB — 174 ms — h2https://ailearnhub.net/_next/static/chunks/5079-0875a6a67071b169.js/_next/static/chunks/5079-0875a6a67... https://ailearnhub.net/_next/static/chunks/5079-0875a6a67071b169.js — 200 — 2.7 KiB — 135 ms — h2https://ailearnhub.net/_next/static/chunks/8627-743740a5a8d6c48b.js/_next/static/chunks/8627-743740a5a... https://ailearnhub.net/_next/static/chunks/8627-743740a5a8d6c48b.js — 200 — 7.0 KiB — 172 ms — h2https://ailearnhub.net/_next/static/chunks/535-f7f434dc81bcd0c6.js/_next/static/chunks/535-f7f434dc81... https://ailearnhub.net/_next/static/chunks/535-f7f434dc81bcd0c6.js — 200 — 12.5 KiB — 178 ms — h2https://ailearnhub.net/_next/static/chunks/174-58c62be97ae88a65.js/_next/static/chunks/174-58c62be97a... https://ailearnhub.net/_next/static/chunks/174-58c62be97ae88a65.js — 200 — 32.3 KiB — 186 ms — h2https://ailearnhub.net/_next/static/chunks/app/(locale)/%5Blocale%5D/(marketing)/(home)/page-c1b385251557607c.js/_next/static/chunks/app/(locale)/%... https://ailearnhub.net/_next/static/chunks/app/(locale)/%5Blocale%5D/(marketing)/(home)/page-c1b385251557607c.js — 200 — 19.8 KiB — 163 ms — h2https://ailearnhub.net/_next/static/chunks/2090-0af1c734781421fa.js/_next/static/chunks/2090-0af1c7347... https://ailearnhub.net/_next/static/chunks/2090-0af1c734781421fa.js — 200 — 4.6 KiB — 181 ms — h2https://ailearnhub.net/_next/static/chunks/2762-70821536debe4006.js/_next/static/chunks/2762-70821536d... https://ailearnhub.net/_next/static/chunks/2762-70821536debe4006.js — 200 — 72.0 KiB — 187 ms — h2https://ailearnhub.net/_next/static/chunks/4606-a3c0e914725a51e7.js/_next/static/chunks/4606-a3c0e9147... https://ailearnhub.net/_next/static/chunks/4606-a3c0e914725a51e7.js — 200 — 37.3 KiB — 163 ms — h2
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s 12.0 s 14.0 s FCP 2.8 s LCP 13.5 shttps://ailearnhub.net// https://ailearnhub.net/ — 200 — 55.6 KiB — 490 ms — h2https://ailearnhub.net/_next/static/media/27834908180db20f-s.p.woff2/_next/static/media/27834908180db20... https://ailearnhub.net/_next/static/media/27834908180db20f-s.p.woff2 — 200 — 68.2 KiB — 57 ms — h2https://ailearnhub.net/_next/static/media/78fec81b34c4a365.p.woff2/_next/static/media/78fec81b34c4a36... https://ailearnhub.net/_next/static/media/78fec81b34c4a365.p.woff2 — 200 — 69.7 KiB — 78 ms — h2https://ailearnhub.net/_next/static/css/9dae90f238ec9279.css/_next/static/css/9dae90f238ec9279.... https://ailearnhub.net/_next/static/css/9dae90f238ec9279.css — 200 — 729 B — 48 ms — h2https://ailearnhub.net/_next/static/css/d12c650ea665206a.css/_next/static/css/d12c650ea665206a.... https://ailearnhub.net/_next/static/css/d12c650ea665206a.css — 200 — 58.3 KiB — 70 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
1% of JavaScript execution is third-party
First-party Third-party 275ms · 168KB · €1/mo
Google Tag Manager
Tag Manager
Costly
Execution 275ms
Transfer 168 KB
Unused 42%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 275ms and costs ~€1/month

Google Tag Manager takes 275ms 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

Image Optimization
21 images, 1818 KB total, 999 KB wasted
INFO

Image Optimization Audit

Total Images

21

Total Size

1818 KB

Oversized

5

Wasted

999 KB

13 missing dimensions 1 missing lazy loading
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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