Skip to content
https://romastartup.org

Performance

· 26 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
91
GRADE
A
FIX
1
REVIEW
7
PASS
15
INFO
3

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

Mobile Desktop
91
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
96
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
50
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

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

797 ms

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

1.69 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.

0.193

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

797 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.

1.69 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 s
Checks
26
15 PASS 7 REVIEW 1 FIX
D
HTTP Caching
Action
no-store (uncacheable)
FIX
no-store (uncacheable)
Info::
Cache-Control: no-store prevents all caching
Intentional for dynamic content, but increases server load for every page view.
Got: no-store,no-cache,max-age=0
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store,no-cache,max-age=0

DirectiveValueMeaning
no-store—Never cache this response
no-cache—Cache but always revalidate first
max-age0Cache for 0 seconds
B
Third-Party Impact
42% third-party, 0 ms blocking
REVIEW
42% third-party, 0 ms blocking
Info::
Third-party code accounts for 42% of page weight (3.8 KiB of 9.1 KiB)
Info::
Third-party blocking time is low (0 ms)
58%
42%
First-party Third-party
B
Image Optimization
2 images, 0 KB saveable
REVIEW
2 images, 0 KB saveable
Warning::
https://d1rozh26tys225.cloudfront.net/robot-suspic... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://d1rozh26tys225.cloudfront.net/loader.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
2 images 4 KB
0 oversized -0 KB
2 legacy format
2 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

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

C
JS Execution Cost
Action
1141ms total JS execution
REVIEW
1141ms total JS execution
Warning::
https://romastartup.org/.well-known/sgcaptcha/?r=%...: 614ms CPU time
Warning::
Unattributable: 527ms CPU time

Main Thread Breakdown

Other 61% Rendering 19% Style & Layout 12% Script Evaluation 7%
ScriptTotalScriptingParse/CompileParty
https://romastartup.org/.well-known/sgcaptcha/?r=%2F&y=ipc:141.227.188.123:1791059836.371614ms48ms7ms1st
Unattributable527ms28ms0ms1st
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
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.
C
Document Compression
Action
Document response served uncompressed
REVIEW
Document response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
B
Server-Timing Observability
No Server-Timing header found
REVIEW
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.
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A+
Page Weight Budget
9 KB transferred, 12 requests
PASS
9 KB transferred, 12 requests
Info::
Page weighs 79 KB (9 KB transferred)
Info::
12 HTTP requests
Info::
Estimated 0.00 g CO2 per page load
9 KB / 2.4 MB budget
9 KB transferred
12 requests
0.00 g CO2 per page load
HTML 5.3 KiB 58%
Images 3.9 KiB 42%
JavaScript -8 B -0%
0 2.4 MB 4.9 MB
Under budget
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
No web fonts (system fonts)
PASS
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+
JS Bundles
8 scripts, 0 KB unused
PASS
8 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4-0 KB—✓3rd
blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4-0 KB—✓3rd
blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4-0 KB—✓3rd
blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4-0 KB—✓3rd
blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4-0 KB—✓3rd
blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4-0 KB—✓3rd
blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4-0 KB—✓3rd
blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4-0 KB—✓3rd
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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
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+
Main HTML Cache-Control
Main HTML uses no-store -- correct for sensitive/dynamic content
PASS
Main HTML uses no-store -- correct for sensitive/dynamic content
Info::
Main HTML uses no-store -- correct for sensitive/dynamic content
Got: no-store,no-cache,max-age=0
A+
Server Response Intelligence
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
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 Inventory
12 resources · 9 KB · 0 KB savings available
PASS
12 resources · 9 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 9 KB
Warning::
10 third-party resources (42% of weight)
12 resources · 9.1 KiB · 10 third-party Within 1MB page-weight target
Document 58% · 5.3 KiB
Image 42% · 3.9 KiB
JavaScript -0% · -8 B
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
No render-blocking JS or document.write usage detected
PASS
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
A+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
Asset Compression
No text asset hosts to measure
INFO
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 Waterfall
12 requests over 452ms
INFO
0 ms 500 ms 1.0 s 1.5 s FCP 797 ms LCP 1.7 shttps://romastartup.org// https://romastartup.org/ — 202 — 420 B — 162 ms — h2https://romastartup.org/.well-known/sgcaptcha/?r=%2F&y=ipc:141.227.188.123:1791059836.371/.well-known/sgcaptcha/?r=%2F&y=ipc... https://romastartup.org/.well-known/sgcaptcha/?r=%2F&y=ipc:141.227.188.123:1791059836.371 — 200 — 4.9 KiB — 40 ms — h2https://d1rozh26tys225.cloudfront.net/robot-suspicion.svgd1rozh26tys225.cloudfront.net/robot... https://d1rozh26tys225.cloudfront.net/robot-suspicion.svg — 200 — 2.7 KiB — 144 ms — h2https://d1rozh26tys225.cloudfront.net/loader.svgd1rozh26tys225.cloudfront.net/loade... https://d1rozh26tys225.cloudfront.net/loader.svg — 200 — 1.2 KiB — 144 ms — h2blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4romastartup.org/fc28bea5-a899-459f-... blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4 — 200 — -1 B — 46 ms — blobblob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4romastartup.org/fc28bea5-a899-459f-... blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4 — 200 — -1 B — 44 ms — blobblob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4romastartup.org/fc28bea5-a899-459f-... blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4 — 200 — -1 B — 41 ms — blobblob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4romastartup.org/fc28bea5-a899-459f-... blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4 — 200 — -1 B — 47 ms — blobblob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4romastartup.org/fc28bea5-a899-459f-... blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4 — 200 — -1 B — 49 ms — blobblob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4romastartup.org/fc28bea5-a899-459f-... blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4 — 200 — -1 B — 39 ms — blobblob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4romastartup.org/fc28bea5-a899-459f-... blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4 — 200 — -1 B — 54 ms — blobblob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4romastartup.org/fc28bea5-a899-459f-... blob:https://romastartup.org/fc28bea5-a899-459f-b320-00c56901f3e4 — 200 — -1 B — 52 ms — blob
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Image Optimization
2 images, 0 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

2

Total Size

0 KB

2 missing dimensions
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback