Performance

· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

Mobile Desktop

100

Performance

100

Accessibility

100

Best Practices

100

SEO

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

345 ms

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

345 ms

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.

0.045

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

681 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.

345 ms

Page Load Progression

375 ms

750 ms

1.1 s

1.5 s

1.9 s

2.2 s

2.6 s

3.0 s

Checks

15 PASS 4 REVIEW

HTTP/3 (QUIC)

HTTP/3 not advertised

REVIEW

HTTP/3 not advertised

HTTP/3 (QUIC) is not advertised

HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.

Document Compression

Document response uses gzip; brotli would be ~20% smaller

REVIEW

Document response uses gzip; brotli would be ~20% smaller

Main HTML response uses gzip (brotli would be ~20% smaller)

All current browsers support brotli. Most CDNs (Cloudflare, Fastly, AWS CloudFront, Vercel, Netlify) can switch from gzip to brotli with a single config flag. Origin servers (nginx, Apache) need a brotli module compiled in -- nginx-brotli or Apache mod_brotli.

Server-Timing Observability

No Server-Timing header found

REVIEW

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.

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

A+

Page Weight Budget

149 KB transferred, 10 requests

PASS

149 KB transferred, 10 requests

Page weighs 225 KB (149 KB transferred)

10 HTTP requests

Estimated 0.03 g CO2 per page load

149 KB transferred

10 requests

0.03 g CO2 per page load

Images 61.1 KiB 41%

Fonts 59.4 KiB 40%

CSS 19.8 KiB 13%

HTML 4.3 KiB 3%

Other 2.2 KiB 1%

JavaScript 1.6 KiB 1%

0 2.4 MB 4.9 MB

Under budget

A+

Third-Party Impact

No third-party resources

PASS

No third-party resources

No third-party resources detected

No third-party resources detected — all resources are first-party.

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Image Optimization

3 images, 0 KB saveable

PASS

3 images, 0 KB saveable

All images are well-optimized

3 images 61 KB

0 oversized -0 KB

1 legacy format

0 missing dimensions CLS risk

A+

JS Execution Cost

61ms total JS execution

PASS

61ms total JS execution

https://dagmor.app/: 61ms CPU time

Main Thread Breakdown

Style & Layout 52% Other 34% Rendering 6% Script Evaluation 5%

Script	Total	Scripting	Parse/Compile	Party
https://dagmor.app/	61ms	1ms	0ms	1st

A+

Font Loading

2 fonts (59 KB)

PASS

2 fonts (59 KB)

2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

59 KB total

Render-blocking

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

lato-regular.woff2 woff2 swap

Size 30 KB

Load time 383 ms

Start 835 ms

Risk FOUT — text flashes from fallback to web font

lato-bold.woff2 woff2 swap

Size 30 KB

Load time 391 ms

Start 836 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+

JS Bundles

1 scripts, 0 KB unused

PASS

1 scripts, 0 KB unused

0 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://dagmor.app/assets/dagmor-nav.js?v=20260907-about	2 KB	—	✓	1st

A+

Resource Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

No optimization needed

PASS

No optimization needed

No resource hint issues

A+

LCP Image Preload

LCP preload audit not available

PASS

LCP preload audit not available

LCP image preload audit not available for this scan

A+

Main HTML Cache-Control

Main HTML max-age=300 (≤ 5min) is appropriate

PASS

Main HTML max-age=300 (≤ 5min) is appropriate

Got: public, max-age=300

A+

Server Response Intelligence

2 server-response signal(s) detected

PASS

2 server-response signal(s) detected

`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).

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 Inventory

10 resources · 149 KB · 0 KB savings available

PASS

10 resources · 149 KB · 0 KB savings available

Within 1MB page-weight target

Got: 149 KB

10 resources · 148.5 KiB · 0 third-party Within 1MB page-weight target

Image 43% · 63.3 KiB

Font 40% · 59.4 KiB

CSS 13% · 19.8 KiB

Document 3% · 4.3 KiB

JavaScript 1% · 1.6 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

10 resources			148.5 KiB

HTTP Caching

max-age=300 (5 minutes)

PASS

max-age=300 (5 minutes)

Cache-Control header is set

Got: public, max-age=300

Effective TTL: 5 minutes (max-age=300)

No ETag or Last-Modified header

Conditional requests (304 Not Modified) are not possible without validators.

Cache-Control

public, max-age=300

Directive	Value	Meaning
public	—	Any cache may store this response
max-age	300	Cache for 5 minutes

Effective TTL: 300 seconds

Asset Compression

No text asset hosts to measure

INFO

No text asset hosts to measure

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 Waterfall

10 requests over 1662ms

INFO

HTML JavaScript CSS Images Fonts XHR/Fetch Other

Image Optimization

4 images, 58 KB total, 47 KB wasted

INFO

Image Optimization Audit

Total Images

Total Size

58 KB

Oversized

Wasted

47 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.