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
Image Optimization
Action
120 images, 0 KB saveable
REVIEW
120 images, 0 KB saveable
Warning::
!
https://www.la7.it/sites/default/files/e_iap_grame... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.la7.it/sites/default/themes/la7/images... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.la7.it/sites/default/files/dimartedi_b... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://tg.la7.it/sites/all/themes/bootstrap/img/l... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.la7.it/sites/default/files/piazzapulit... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.la7.it/sites/default/files/e_inonda202... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.la7.it/sites/default/files/e_tdb_augia... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.la7.it/sites/default/files/propagandal... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://www.la7.it/sites/default/files/ugp_poster_... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
120images26.9 MB
0oversized-0 KB
116legacy format
9missing 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
B
HTTP/3 (QUIC)
HTTP/3 not advertised
REVIEW
HTTP/3 not advertised
Info::
i
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::
i
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
Asset Compression
3 of 3 asset hosts still on gzip
REVIEW
3 of 3 asset hosts still on gzip
Info::
i
www.la7.it serves assets with gzip; brotli would be ~20% smaller (assets: 33)
Every current browser accepts brotli. On a CDN this is a per-pull-zone toggle (Cloudflare, Fastly, CloudFront, CDN77, Bunny all expose it); on an origin it needs the brotli module (nginx-brotli, Apache mod_brotli). The saving lands on the assets this host serves, not on the HTML document -- the document's own encoding is reported separately.
Got: www.la7.it (application/javascript)
Info::
i
cdn-gl.imrworldwide.com serves assets with gzip; brotli would be ~20% smaller (assets: 3)
Every current browser accepts brotli. On a CDN this is a per-pull-zone toggle (Cloudflare, Fastly, CloudFront, CDN77, Bunny all expose it); on an origin it needs the brotli module (nginx-brotli, Apache mod_brotli). The saving lands on the assets this host serves, not on the HTML document -- the document's own encoding is reported separately.
components2.corriereobjects.it serves assets with gzip; brotli would be ~20% smaller (assets: 3)
Every current browser accepts brotli. On a CDN this is a per-pull-zone toggle (Cloudflare, Fastly, CloudFront, CDN77, Bunny all expose it); on an origin it needs the brotli module (nginx-brotli, Apache mod_brotli). The saving lands on the assets this host serves, not on the HTML document -- the document's own encoding is reported separately.
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.
B
JavaScript Blocking
2 JS blocking issue(s) detected
REVIEW
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 8.8 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.
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
6 fonts (210 KB)
PASS
6 fonts (210 KB)
Info::
i
6 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
6
210 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
Gotham-Medium.woffwoffswap
Size41 KB
Load time66 ms
Start213 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Gotham-Bold.woffwoffswap
Size40 KB
Load time131 ms
Start656 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Gotham-Black.woffwoffswap
Size43 KB
Load time134 ms
Start657 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Gotham-Ultra.woffwoffswap
Size23 KB
Load time124 ms
Start657 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Gotham-Book.woffwoffswap
Size41 KB
Load time133 ms
Start657 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
Gotham-Light.woffwoffswap
Size22 KB
Load time128 ms
Start658 ms
RiskFOUT — text flashes from fallback to web font
Convert to woff2 for ~30% smaller file size
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 ~63 KB and ~126 ms
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
✓
No caching issues found
All static resources have appropriate caching headers.
Each preconnect eagerly opens a TCP+TLS connection. On slow networks or low-end devices, too many parallel connections cause head-of-line blocking and starve the connections that matter for LCP. Trim to the 4-6 highest-value origins (the ones serving render-blocking or LCP resources).
Info::
✓
Page uses 10 resource hint(s)
Current Resource Hints
preconnect
8
preload
2
dns-prefetch—
prefetch—
10 resource hints configured
Each preconnect eagerly opens a TCP+TLS connection. On slow networks or low-end devices, too many parallel connections cause head-of-line blocking and starve the connections that matter for LCP. Trim to the 4-6 highest-value origins (the ones serving render-blocking or LCP resources).
Why this matters
Informational: a labeled value pair from the audit.
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
1 server-response signal(s) detected
PASS
1 server-response signal(s) detected
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+
CSS Performance Depth
No CSS performance depth issues detected
PASS
No CSS performance depth issues detected
Info::
✓
No CSS performance depth issues detected
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Aruba.it
Network Waterfall
218 requests over 3822ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
80%of JavaScript execution is third-party
First-party Third-party7082ms · 2281KB · €77/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
www.la7.it
www.la7.it
Other
1263ms
157 KB
—
€14/mo
Costly
www.la7.it
www.la7.it
Other
629ms
221 KB
12%
€7/mo
Costly
micro.rubiconproject.com
micro.rubiconproject.com
Other
590ms
168 KB
68%
€6/mo
Costly
www.la7.it
www.la7.it
Other
554ms
25 KB
—
€6/mo
Costly
components2.corriereobjects.it
components2.corriereobjects.it
Other
438ms
20 KB
—
€5/mo
Costly
www.la7.it
www.la7.it
Other
423ms
256 KB
70%
€5/mo
Costly
www.la7.it
www.la7.it
Other
369ms
37 KB
56%
€4/mo
Costly
cdn.taboola.com
cdn.taboola.com
Other
339ms
329 KB
57%
€4/mo
Costly
cdn.permutive.app
cdn.permutive.app
Other
327ms
223 KB
18%
€4/mo
Costly
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
321ms
211 KB
75%
€3/mo
Costly
www.la7.it
www.la7.it
Other
306ms
7 KB
—
€3/mo
Costly
imasdk.googleapis.com
imasdk.googleapis.com
Other
257ms
154 KB
74%
€3/mo
Costly
fundingchoicesmessages.google.com
fundingchoicesmessages.google.com
Other
228ms
71 KB
53%
€2/mo
Costly
cdn-gl.imrworldwide.com
cdn-gl.imrworldwide.com
Other
185ms
74 KB
54%
€2/mo
Optional
Google Tag Manager
www.googletagmanager.com
Tag Manager
178ms
165 KB
55%
€2/mo
Optional
www.la7.it
www.la7.it
Other
174ms
45 KB
45%
€2/mo
Optional
securepubads.g.doubleclick.net
securepubads.g.doubleclick.net
Other
137ms
37 KB
—
€1/mo
Optional
c2.taboola.com
c2.taboola.com
Other
129ms
18 KB
—
€1/mo
Optional
static.chartbeat.com
static.chartbeat.com
Other
117ms
17 KB
—
€1/mo
Optional
www.la7.it
www.la7.it
Other
62ms
27 KB
—
€1/mo
Optional
components2.corriereobjects.it
components2.corriereobjects.it
Other
56ms
18 KB
—
€1/mo
Optional
www.la7.it
Other
Costly
Execution1263ms
Transfer157 KB
Monthly Cost€14/mo
www.la7.it
Other
Costly
Execution629ms
Transfer221 KB
Unused12%
Monthly Cost€7/mo
micro.rubiconproject.com
Other
Costly
Execution590ms
Transfer168 KB
Unused68%
Monthly Cost€6/mo
www.la7.it
Other
Costly
Execution554ms
Transfer25 KB
Monthly Cost€6/mo
components2.corriereobjects.it
Other
Costly
Execution438ms
Transfer20 KB
Monthly Cost€5/mo
www.la7.it
Other
Costly
Execution423ms
Transfer256 KB
Unused70%
Monthly Cost€5/mo
www.la7.it
Other
Costly
Execution369ms
Transfer37 KB
Unused56%
Monthly Cost€4/mo
cdn.taboola.com
Other
Costly
Execution339ms
Transfer329 KB
Unused57%
Monthly Cost€4/mo
cdn.permutive.app
Other
Costly
Execution327ms
Transfer223 KB
Unused18%
Monthly Cost€4/mo
securepubads.g.doubleclick.net
Other
Costly
Execution321ms
Transfer211 KB
Unused75%
Monthly Cost€3/mo
www.la7.it
Other
Costly
Execution306ms
Transfer7 KB
Monthly Cost€3/mo
imasdk.googleapis.com
Other
Costly
Execution257ms
Transfer154 KB
Unused74%
Monthly Cost€3/mo
fundingchoicesmessages.google.com
Other
Costly
Execution228ms
Transfer71 KB
Unused53%
Monthly Cost€2/mo
cdn-gl.imrworldwide.com
Other
Optional
Execution185ms
Transfer74 KB
Unused54%
Monthly Cost€2/mo
Google Tag Manager
Tag Manager
Optional
Execution178ms
Transfer165 KB
Unused55%
Monthly Cost€2/mo
www.la7.it
Other
Optional
Execution174ms
Transfer45 KB
Unused45%
Monthly Cost€2/mo
securepubads.g.doubleclick.net
Other
Optional
Execution137ms
Transfer37 KB
Monthly Cost€1/mo
c2.taboola.com
Other
Optional
Execution129ms
Transfer18 KB
Monthly Cost€1/mo
static.chartbeat.com
Other
Optional
Execution117ms
Transfer17 KB
Monthly Cost€1/mo
www.la7.it
Other
Optional
Execution62ms
Transfer27 KB
Monthly Cost€1/mo
components2.corriereobjects.it
Other
Optional
Execution56ms
Transfer18 KB
Monthly Cost€1/mo
These scripts may cost more than they're worth
www.la7.it adds 1263ms and costs ~€14/month
www.la7.it adds 629ms and costs ~€7/month
micro.rubiconproject.com adds 590ms and costs ~€6/month
www.la7.it adds 554ms and costs ~€6/month
components2.corriereobjects.it adds 438ms and costs ~€5/month
www.la7.it adds 423ms and costs ~€5/month
www.la7.it adds 369ms and costs ~€4/month
cdn.taboola.com adds 339ms and costs ~€4/month
cdn.permutive.app adds 327ms and costs ~€4/month
securepubads.g.doubleclick.net adds 321ms and costs ~€3/month
www.la7.it adds 306ms and costs ~€3/month
imasdk.googleapis.com adds 257ms and costs ~€3/month
fundingchoicesmessages.google.com adds 228ms and costs ~€2/month
80% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
Why this matters
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
www.la7.it takes 1263ms 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
www.la7.it takes 629ms 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
micro.rubiconproject.com takes 590ms 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
68% of micro.rubiconproject.com'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.
Source: web.dev
www.la7.it takes 554ms 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
components2.corriereobjects.it takes 438ms 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
www.la7.it takes 423ms 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
70% of www.la7.it'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.
Source: web.dev
www.la7.it takes 369ms 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
56% of www.la7.it'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.
Source: web.dev
cdn.taboola.com takes 339ms 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
57% of cdn.taboola.com'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.
Source: web.dev
cdn.permutive.app takes 327ms 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
securepubads.g.doubleclick.net takes 321ms 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
75% of securepubads.g.doubleclick.net'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.
Source: web.dev
www.la7.it takes 306ms 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
imasdk.googleapis.com takes 257ms 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
74% of imasdk.googleapis.com'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.
Source: web.dev
fundingchoicesmessages.google.com takes 228ms 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
53% of fundingchoicesmessages.google.com'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.
Source: web.dev
54% of cdn-gl.imrworldwide.com'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.
Source: web.dev
55% 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.