https://iptvplaylist.app
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
93
GRADE
A
FIX
1
REVIEW
3
PASS
15
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
98
100
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
632 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.12 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.017
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
632 ms
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
1.12 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 sChecks
2215 PASS 3 REVIEW 1 FIX
DHTTP CachingActionno-store (uncacheable)FIX
HTTP Caching
Actionno-store (uncacheable)
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
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
BImage Optimization45 images, 0 KB saveableREVIEW
Image Optimization
45 images, 0 KB saveable
45 images, 0 KB saveable
Info::
All images are well-optimized
45 images 184 KB
0 oversized -0 KB
41 legacy format
0 missing dimensions CLS risk
BJS Bundles22 scripts, 72 KB unusedREVIEW
JS Bundles
22 scripts, 72 KB unused
22 scripts, 72 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-5S71...: 72 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 72 KB
72 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-5S71RRM7HZ | 168 KB | 72 KB (43%) | ✓ | 3rd |
| https://iptvplaylist.app/_next/static/chunks/6473-b776ecb2ef075770.js | 21 KB | — | ✓ | 1st |
| https://iptvplaylist.app/_next/static/chunks/1247-5316b10d6eff8b88.js | 5 KB | — | ✓ | 1st |
| https://iptvplaylist.app/_next/static/chunks/main-app-1ee710acf19d19a0.js | 1 KB | — | ✓ | 1st |
| https://iptvplaylist.app/_next/static/chunks/app/not-found-25ad2cf5e144d7a6.js | 3 KB | — | ✓ | 1st |
| https://iptvplaylist.app/_next/static/chunks/9522-0cd30c82710e891a.js | 16 KB | — | ✓ | 1st |
| https://iptvplaylist.app/_next/static/chunks/3941-30cf580a968ae43f.js | 5 KB | — | ✓ | 1st |
| https://iptvplaylist.app/_next/static/chunks/8685-b43391461d48160b.js | 9 KB | — | ✓ | 1st |
| https://iptvplaylist.app/_next/static/chunks/5002-f2424c89906ed808.js | 14 KB | — | ✓ | 1st |
| https://iptvplaylist.app/_next/static/chunks/2872-62d213d721e5eb41.js | 4 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
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
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.
APage Weight Budget782 KB transferred, 88 requestsPASS
Page Weight Budget
782 KB transferred, 88 requests
782 KB transferred, 88 requests
Info::
Page weighs 2.0 MB (782 KB transferred)
Info::
88 HTTP requests
Info::
Estimated 0.16 g CO2 per page load
782 KB transferred
88 requests
0.16 g CO2 per page load
JavaScript 431.7 KiB 55%
Images 184.3 KiB 24%
HTML 51.3 KiB 7%
Fonts 46.6 KiB 6%
Other 31.0 KiB 4%
CSS 27.5 KiB 4%
Other 8.1 KiB 1%
Other 868 B 0%
Other 848 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
AThird-Party Impact26% third-party, 0 ms blockingPASS
Third-Party Impact
26% third-party, 0 ms blocking
26% third-party, 0 ms blocking
Info::
Third-party code accounts for 26% of page weight (202.7 KiB of 782.2 KiB)
Info::
Third-party blocking time is low (0 ms)
74%
26%
First-party Third-party
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
A+JS Execution Cost491ms total JS executionPASS
JS Execution Cost
491ms total JS execution
491ms total JS execution
Info::
Unattributable: 167ms CPU time
Info::
https://iptvplaylist.app/: 140ms CPU time
Info::
https://iptvplaylist.app/_next/static/chunks/1170-...: 75ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-5S71...: 57ms CPU time
Info::
https://scripts.clarity.ms/0.8.69/clarity.js: 51ms CPU time
Info::
Third-party scripts: 108ms (22% of total)
Main Thread Breakdown
Script Evaluation 43% Other 29% Style & Layout 13% Script Parsing & Compilation 9% Rendering 3%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 167ms | 6ms | 0ms | 1st |
| https://iptvplaylist.app/ | 140ms | 8ms | 28ms | 1st |
| https://iptvplaylist.app/_next/static/chunks/1170-bf088dea7b0c004d.js | 75ms | 70ms | 3ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-5S71RRM7HZ | 57ms | 47ms | 9ms | 3rd |
| https://scripts.clarity.ms/0.8.69/clarity.js | 51ms | 45ms | 1ms | 3rd |
A+Font Loading2 fonts (47 KB)PASS
Font Loading
2 fonts (47 KB)
2 fonts (47 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
2
47 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
1755441e3a2fa970-s.p.woff2 woff2 swap
Size 35 KB
Load time 61 ms
Start 293 ms
Risk FOUT — text flashes from fallback to web font
cd333bdcb43b4c68-s.woff2 woff2 swap
Size 11 KB
Load time 114 ms
Start 294 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 CachingAll resources properly cachedPASS
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
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 AlgorithmMain response uses brotliPASS
Compression Algorithm
Main response uses brotli
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 PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Main HTML Cache-ControlMain HTML uses no-store -- correct for sensitive/dynamic contentPASS
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
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 Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: RSC, Next-Router-State-Tree, Next-Router-Prefetch, Next-Router-Segment-Prefetch
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+Page Weight Inventory88 resources · 782 KB · 72 KB savings availablePASS
Page Weight Inventory
88 resources · 782 KB · 72 KB savings available
88 resources · 782 KB · 72 KB savings available
Info::
Within 1MB page-weight target
Got: 782 KB
Info::
~72 KB of savings available
Info::
11 third-party resources (26% of weight)
88 resources · 782.2 KiB · 11 third-party Within 1MB page-weight target
JavaScript 55% · 431.7 KiB
Image 28% · 215.3 KiB
Document 7% · 51.3 KiB
Font 6% · 46.6 KiB
CSS 4% · 27.5 KiB
Other 1% · 9.8 KiB
~72.5 KiB of savings available
Remove unused JavaScript: 72.5 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 88 resources | 782.2 KiB | ||||||
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall88 requests over 2920msINFO
Network Waterfall
88 requests over 2920ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
22% of JavaScript execution is third-party
First-party Third-party 108ms · 193KB · €1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 57ms | 168 KB | 43% | €1/mo | Optional |
Microsoft Clarity scripts.clarity.ms | Session Replay | 51ms | 25 KB | — | €1/mo | Optional |
Google Tag Manager
Tag Manager
Execution 57ms
Transfer 168 KB
Unused 43%
Monthly Cost €1/mo
Microsoft Clarity
Session Replay
Execution 51ms
Transfer 25 KB
Monthly Cost €1/mo
Image Optimization57 images, 110 KB total, 0 KB wastedINFO
Image Optimization
57 images, 110 KB total, 0 KB wasted
Image Optimization Audit
Total Images
57
Total Size
110 KB
2 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.