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.
C
Page Weight Budget
Action
1.6 MB transferred, 127 requests
REVIEW
1.6 MB transferred, 127 requests
Info::
i
Page weighs 4.2 MB (1.6 MB transferred)
Warning::
!
JavaScript is 694 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 694 KB
Warning::
!
127 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
i
Estimated 0.34 g CO2 per page load
1.6 MBtransferred
127 requests
0.34 g CO2 per page load
JavaScript694.4 KiB41%
Images434.7 KiB26%
Other420.9 KiB25%
Fonts52.5 KiB3%
HTML50.2 KiB3%
Other14.6 KiB1%
CSS7.4 KiB0%
Other1.5 KiB0%
Other0 B0%
02.4 MB4.9 MB
Approaching limit
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
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Why this matters
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
B
Third-Party Impact
43% third-party, 0 ms blocking
REVIEW
43% third-party, 0 ms blocking
Info::
i
Third-party code accounts for 43% of page weight (724.2 KiB of 1.6 MiB)
Info::
✓
Third-party blocking time is low (0 ms)
57%
43%
First-party Third-party
B
Image Optimization
29 images, 0 KB saveable
REVIEW
29 images, 0 KB saveable
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://api.norriq.shop/images/proxy/_/rs:fit:400:... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
29images435 KB
0oversized-0 KB
1legacy format
13missing dimensionsCLS 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
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
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
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
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
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
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
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
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
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
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
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
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
B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
i
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.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
No Server-Timing header found
Info::
i
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.
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
3 fonts (53 KB)
PASS
3 fonts (53 KB)
Info::
i
3 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
3
53 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
Lato-normal-400-latin-e...woff2swap
Size6 KB
Load time1.1 s
Start1.6 s
RiskFOUT — text flashes from fallback to web font
Lato-normal-400-latin.B...woff2swap
Size24 KB
Load time959 ms
Start3.6 s
RiskFOUT — text flashes from fallback to web font
Lato-normal-700-latin.B...woff2swap
Size23 KB
Load time972 ms
Start3.6 s
RiskFOUT — 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
Warning::
!
1 font preload(s) missing `crossorigin` -- font will be downloaded twice
Fonts are always fetched as crossorigin=anonymous; a preload without the attribute creates a different cache key, so the browser refetches when the actual font request happens. Sample: /fonts/Lato-normal-400-latin-ext.woff2. Add `crossorigin` (or `crossorigin="anonymous"`) to each preload.
Info::
✓
Page uses 7 resource hint(s)
Current Resource Hints
preconnect—
preload
2
dns-prefetch—
prefetch
5
7 resource hints configured
Fonts are always fetched as crossorigin=anonymous; a preload without the attribute creates a different cache key, so the browser refetches when the actual font request happens. Sample: /fonts/Lato-normal-400-latin-ext.woff2. Add `crossorigin` (or `crossorigin="anonymous"`) to each preload.
Why this matters
Performance issues directly impact user engagement and conversion rates.
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+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
✓
`Vary` header declared: Accept-Encoding
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::
i
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
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 JS blocking issue(s) detected
Warning::
!
Total JS execution time is 5.0 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.
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
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
127 requests over 8471ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
10%of JavaScript execution is third-party
First-party Third-party493ms · 276KB · kr39/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
Google Tag Manager
www.googletagmanager.com
Tag Manager
288ms
153 KB
50%
kr23/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
205ms
123 KB
51%
kr16/mo
Costly
Google Tag Manager
Tag Manager
Costly
Execution288ms
Transfer153 KB
Unused50%
Monthly Costkr23/mo
Google Tag Manager
Tag Manager
Costly
Execution205ms
Transfer123 KB
Unused51%
Monthly Costkr16/mo
These scripts may cost more than they're worth
Google Tag Manager adds 288ms and costs ~kr23/month
Google Tag Manager adds 205ms and costs ~kr16/month
Google Tag Manager takes 288ms 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 205ms 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
51% of Google Tag Manager'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.
577 ms
4.0 s
4.6 s