https://mekawire.com
Performance
· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
90
GRADE
A
FIX
1
REVIEW
6
PASS
16
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
81
90
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
2.04 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.77 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
282 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.
2.58 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.
6.02 s
Page Load Progression
Checks
2616 PASS 6 REVIEW 1 FIX
FJS Execution CostAction4387ms total JS executionFIX
JS Execution Cost
Action4387ms total JS execution
4387ms total JS execution
Warning::
https://mekawire.com/_next/static/chunks/395zr5h00...: 2590ms CPU time
Warning::
https://mekawire.com/: 761ms CPU time
Warning::
Unattributable: 398ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-2P0W...: 261ms CPU time
Info::
https://mekawire.com/_next/static/chunks/2mxu_itjn...: 239ms CPU time
Info::
Third-party scripts: 261ms (6% of total)
Main Thread Breakdown
Script Evaluation 60% Other 21% Style & Layout 9% Rendering 4% Script Parsing & Compilation 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://mekawire.com/_next/static/chunks/395zr5h00dtn8.js | 2590ms | 2038ms | 30ms | 1st |
| https://mekawire.com/ | 761ms | 10ms | 24ms | 1st |
| Unattributable | 398ms | 23ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=G-2P0WZQ98C7 | 261ms | 219ms | 38ms | 3rd |
| https://mekawire.com/_next/static/chunks/2mxu_itjn7bu0.js | 239ms | 236ms | 2ms | 1st |
| https://mekawire.com/_next/static/chunks/31z5-c-53y138.js | 138ms | 91ms | 33ms | 1st |
BThird-Party Impact44% third-party, 0 ms blockingREVIEW
Third-Party Impact
44% third-party, 0 ms blocking
44% third-party, 0 ms blocking
Info::
Third-party code accounts for 44% of page weight (314.4 KiB of 715.5 KiB)
Info::
Third-party blocking time is low (0 ms)
56%
44%
First-party Third-party
BJS Bundles16 scripts, 120 KB unusedREVIEW
JS Bundles
16 scripts, 120 KB unused
16 scripts, 120 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-2P0W...: 74 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://mekawire.com/_next/static/chunks/395zr5h00...: 24 KB unused (35%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://mekawire.com/_next/static/chunks/2f-hx439l...: 22 KB unused (73%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 120 KB
120 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-2P0WZQ98C7 | 178 KB | 74 KB (42%) | ✓ | 3rd |
| https://mekawire.com/_next/static/chunks/395zr5h00dtn8.js | 70 KB | 24 KB (35%) | ✓ | 1st |
| https://mekawire.com/_next/static/chunks/2f-hx439ldo9w.js | 30 KB | 22 KB (73%) | ✓ | 1st |
| https://mekawire.com/_next/static/chunks/2hm8860chq8ex.js | 10 KB | — | ✓ | 1st |
| https://mekawire.com/_next/static/chunks/0361rzkw7srzj.js | 8 KB | — | ✓ | 1st |
| https://mekawire.com/_next/static/chunks/31z5-c-53y138.js | 45 KB | — | ✓ | 1st |
| https://mekawire.com/_next/static/chunks/turbopack-1-1r5_cvgd51v.js | 5 KB | — | ✓ | 1st |
| https://mekawire.com/_next/static/chunks/2j6_8puetndxi.js | 4 KB | — | ✓ | 1st |
| https://mekawire.com/_next/static/chunks/2mxu_itjn7bu0.js | 3 KB | — | ✓ | 1st |
| https://mekawire.com/_next/static/chunks/1vx4zqs1zh318.js | 9 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
BMain HTML Cache-ControlCache-Control present but without max-ageREVIEW
Main HTML Cache-Control
Cache-Control present but without max-age
Cache-Control present but without max-age
Info::
Main HTML Cache-Control has no max-age: public, s-maxage=30, stale-while-revalidate=60
Got: public, s-maxage=30, stale-while-revalidate=60
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.
BJavaScript Blocking2 JS blocking issue(s) detectedREVIEW
JavaScript Blocking
2 JS blocking issue(s) detected
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 4.4 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.
BHTTP Cachingpublic, s-maxage=30, stale-while-revalidate=60REVIEW
HTTP Caching
public, s-maxage=30, stale-while-revalidate=60
public, s-maxage=30, stale-while-revalidate=60
Info::
Cache-Control header is set
Got: public, s-maxage=30, stale-while-revalidate=60
Info::
CDN TTL: 30 seconds (s-maxage=30)
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
public, s-maxage=30, stale-while-revalidate=60
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| s-maxage | 30 | CDN caches for 30 seconds |
| stale-while-revalidate | 60 | Serve stale for 1 minute while fetching fresh |
APage Weight Budget715 KB transferred, 48 requestsPASS
Page Weight Budget
715 KB transferred, 48 requests
715 KB transferred, 48 requests
Info::
Page weighs 1.8 MB (715 KB transferred)
Info::
Fonts are 215 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 215 KB
Info::
48 HTTP requests
Info::
Estimated 0.15 g CO2 per page load
715 KB transferred
48 requests
0.15 g CO2 per page load
JavaScript 405.4 KiB 57%
Fonts 214.8 KiB 30%
Other 31.2 KiB 4%
HTML 31.1 KiB 4%
CSS 29.2 KiB 4%
Other 1.4 KiB 0%
Other 1.3 KiB 0%
Other 770 B 0%
Other 318 B 0%
0 2.4 MB 4.9 MB
Under budget
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
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+Image OptimizationNo images on this pagePASS
Image Optimization
No images on this page
No images on this page
Info::
No images on this page
0 images 0 KB
0 oversized -0 KB
0 legacy format
0 missing dimensions CLS risk
A+Font Loading7 fonts (215 KB)PASS
Font Loading
7 fonts (215 KB)
7 fonts (215 KB)
Info::
7 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
7
215 KB total
Render-blocking
0
of 7
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
1b99372b3eaef0c8-s.p.1g... woff2 swap
Size 32 KB
Load time 66 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
70bc3e132a0a741e-s.p.3t... woff2 swap
Size 41 KB
Load time 83 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
83afe278b6a6bb3c-s.p.2b... woff2 swap
Size 48 KB
Load time 53 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
PretendardVariable.subs... woff2 swap
Size 21 KB
Load time 67 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
PretendardVariable.subs... woff2 swap
Size 22 KB
Load time 48 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
PretendardVariable.subs... woff2 swap
Size 25 KB
Load time 63 ms
Start 1.2 s
Risk FOUT — text flashes from fallback to web font
PretendardVariable.subs... woff2 swap
Size 27 KB
Load time 63 ms
Start 1.2 s
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 Hints7 hints, 0 missing preconnectsPASS
Resource Hints
7 hints, 0 missing preconnects
7 hints, 0 missing preconnects
Info::
Page uses 7 resource hint(s)
Current Resource Hints
preconnect—
preload 7
dns-prefetch—
prefetch—
7 resource hints configured
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+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: 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.
APage Weight Inventory48 resources · 715 KB · 120 KB savings availablePASS
Page Weight Inventory
48 resources · 715 KB · 120 KB savings available
48 resources · 715 KB · 120 KB savings available
Info::
Within 1MB page-weight target
Got: 715 KB
Info::
~120 KB of savings available
Warning::
11 third-party resources (44% of weight)
48 resources · 715.5 KiB · 11 third-party Within 1MB page-weight target
JavaScript 57% · 405.4 KiB
Font 30% · 214.8 KiB
Other 5% · 33.7 KiB
Document 4% · 31.1 KiB
CSS 4% · 29.2 KiB
Image 0% · 1.3 KiB
~119.9 KiB of savings available
Remove unused JavaScript: 119.9 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 48 resources | 715.5 KiB | ||||||
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
CSS Performance Depth
No CSS performance depth issues detected
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
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
Asset CompressionNo text asset hosts to measureINFO
Asset Compression
No text asset hosts to measure
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall48 requests over 4071msINFO
Network Waterfall
48 requests over 4071ms
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
6% of JavaScript execution is third-party
First-party Third-party 261ms · 178KB · €3/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Google Tag Manager www.googletagmanager.com | Tag Manager | 261ms | 178 KB | 42% | €3/mo | Costly |
Google Tag Manager
Tag Manager
Execution 261ms
Transfer 178 KB
Unused 42%
Monthly Cost €3/mo
These scripts may cost more than they're worth
- Google Tag Manager adds 261ms and costs ~€3/month
Google Tag Manager takes 261ms 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
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.