https://new5.prilinkbd.com
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
84
GRADE
B
FIX
2
REVIEW
5
PASS
13
INFO
2
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
83
85
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
850 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.61 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.
0.076
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.70 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.
1.61 s
Page Load Progression
Checks
2213 PASS 5 REVIEW 2 FIX
FPage Weight BudgetAction4.6 MB transferred, 41 requestsFIX
Page Weight Budget
Action4.6 MB transferred, 41 requests
4.6 MB transferred, 41 requests
Critical::
Page weighs 5.8 MB (4.6 MB transferred)
Warning::
Images are 3.9 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.9 MB
Info::
Fonts are 427 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 427 KB
Info::
41 HTTP requests
Info::
Estimated 0.96 g CO2 per page load
4.6 MB transferred
41 requests
0.96 g CO2 per page load
Images 3.9 MiB 84%
Fonts 427.4 KiB 9%
CSS 145.3 KiB 3%
JavaScript 118.3 KiB 3%
Other 34.9 KiB 1%
HTML 11.4 KiB 0%
Other 729 B 0%
0 2.4 MB 4.9 MB
Over budget
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
FHTTP CachingActionNo cache headersFIX
HTTP Caching
ActionNo cache headers
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.
BImage Optimization8 images, 0 KB saveableREVIEW
Image Optimization
8 images, 0 KB saveable
8 images, 0 KB saveable
Warning::
https://new5.prilinkbd.com/assets/images/prilink-l... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
8 images 3.9 MB
0 oversized -0 KB
8 legacy format
1 missing dimensions CLS risk
Set explicit width and height to prevent CLS.
Why this matters
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
CJS BundlesAction8 scripts, 60 KB unusedREVIEW
JS Bundles
Action8 scripts, 60 KB unused
8 scripts, 60 KB unused
Warning::
https://new5.prilinkbd.com/assets/js/chart.umd.min...: 60 KB unused (89%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://new5.prilinkbd.com/assets/js/main.js: unminified — 2 KB could be saved
Warning::
https://new5.prilinkbd.com/assets/js/market.js: unminified — 3 KB could be saved
Info::
Total unused JavaScript: 60 KB
60 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://new5.prilinkbd.com/assets/js/chart.umd.min.js | 67 KB | 60 KB (89%) | ✓ | 1st |
| https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/js/bootstrap.bundle.min.js | 24 KB | — | ✓ | 3rd |
| https://new5.prilinkbd.com/assets/js/main.js | 5 KB | — | ✗ | 1st |
| https://new5.prilinkbd.com/assets/js/theme.js | 1 KB | — | ✓ | 1st |
| https://new5.prilinkbd.com/assets/js/market.js | 7 KB | — | ✗ | 1st |
| https://new5.prilinkbd.com/assets/js/ticker.js | 2 KB | — | ✓ | 1st |
| https://new5.prilinkbd.com/assets/js/aos.js | 4 KB | — | ✓ | 1st |
| https://new5.prilinkbd.com/assets/js/news.js | 8 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
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
Main HTML Cache-Control
No Cache-Control header on main HTML response
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
Without an explicit Cache-Control, browsers fall back to heuristic caching (~10% of Last-Modified age). Set `Cache-Control: no-cache` or `max-age=300` for HTML to control freshness explicitly -- prevents stale auth state and SPA shell drift.
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.
CPage Weight InventoryAction41 resources · 4.6 MB · 60 KB savings availableREVIEW
Page Weight Inventory
Action41 resources · 4.6 MB · 60 KB savings available
41 resources · 4.6 MB · 60 KB savings available
Warning::
Page weight 4.6 MB exceeds 1 MB target by 3.6 MB
Got: 4.6 MB Expected: ≤ 1 MB
Info::
~60 KB of savings available
Info::
5 third-party resources (2% of weight)
Info::
4 resources over 200KB
41 resources · 4.6 MiB · 5 third-party 3.6 MiB over 1MB target
Image 84% · 3.9 MiB
Font 9% · 427.4 KiB
CSS 3% · 145.3 KiB
JavaScript 3% · 118.3 KiB
Other 1% · 34.9 KiB
Document 0% · 11.4 KiB
~59.7 KiB of savings available
Remove unused JavaScript: 59.7 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 41 resources | 4.6 MiB | ||||||
A+Third-Party Impact2% third-party, 0 ms blockingPASS
Third-Party Impact
2% third-party, 0 ms blocking
2% third-party, 0 ms blocking
Info::
Third-party code accounts for 2% of page weight (107.1 KiB of 4.6 MiB)
Info::
Third-party blocking time is low (0 ms)
98%
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 Cost464ms total JS executionPASS
JS Execution Cost
464ms total JS execution
464ms total JS execution
Warning::
https://new5.prilinkbd.com/: 383ms CPU time
Info::
Unattributable: 81ms CPU time
Main Thread Breakdown
Other 42% Style & Layout 34% Rendering 13% Script Evaluation 5% Parse HTML & CSS 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://new5.prilinkbd.com/ | 383ms | 8ms | 1ms | 1st |
| Unattributable | 81ms | 3ms | 0ms | 1st |
A+Font Loading5 fonts (427 KB)PASS
Font Loading
5 fonts (427 KB)
5 fonts (427 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
5
427 KB total
Render-blocking
0
of 5
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 63 ms
Start 635 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 117 KB
Load time 180 ms
Start 635 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
bootstrap-icons.woff2 woff2 swap
Size 131 KB
Load time 243 ms
Start 636 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
fa-brands-400.woff2 woff2 swap
Size 113 KB
Load time 272 ms
Start 637 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
fa-regular-400.woff2 woff2 swap
Size 19 KB
Load time 276 ms
Start 637 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)
Fixing the unchecked items could save ~180 KB and ~360 ms
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+Document CompressionDocument response uses brotliPASS
Document Compression
Document response uses brotli
Document 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+Asset CompressionAll 1 asset host use brotliPASS
Asset Compression
All 1 asset host use brotli
All 1 asset host use brotli
Info::
cdn.jsdelivr.net serves assets with brotli (assets: 3)
Got: cdn.jsdelivr.net (text/css)
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+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: Accept-Encoding,User-Agent
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+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: Hetzner Online GmbH
Network Waterfall41 requests over 9704msINFO
Network Waterfall
41 requests over 9704ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization6 images, 432 KB total, 356 KB wastedINFO
Image Optimization
6 images, 432 KB total, 356 KB wasted
Image Optimization Audit
Total Images
6
Total Size
432 KB
Oversized
4
Wasted
356 KB
6 missing dimensions 4 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.