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https://cutt.ly

Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
88
GRADE
B
FIX
1
REVIEW
3
PASS
9
INFO
2

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

99
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
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.
100
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.

747 ms

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

787 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.

0.008

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

796 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.

787 ms

Page Load Progression

415 ms
830 ms
1.2 s
1.7 s
2.1 s
2.5 s
2.9 s
3.3 s
Checks
15
9 PASS 3 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, must-revalidate
Info::
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control

no-store, no-cache, must-revalidate

DirectiveValueMeaning
no-storeNever cache this response
no-cacheCache but always revalidate first
must-revalidateMust recheck with server after expiry
B
Third-Party Impact
45% third-party, 0 ms blocking
REVIEW
45% third-party, 0 ms blocking
Info::
Third-party code accounts for 45% of page weight (162.6 KiB of 365.3 KiB)
Info::
Third-party blocking time is low (0 ms)
55%
45%
First-party Third-party
B
Image Optimization
12 images, 0 KB saveable
REVIEW
12 images, 0 KB saveable
Warning::
is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
12 images 12 KB
0 oversized -0 KB
9 legacy format
1 missing dimensions CLS risk

Set explicit width and height to prevent CLS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

B
JS Execution Cost
940ms total JS execution
REVIEW
940ms total JS execution
Warning::
https://cutt.ly/: 695ms CPU time
Info::
https://cutt.ly/scripts/hero-anim.js?v=1: 179ms CPU time
Info::
Unattributable: 66ms CPU time
Info::
Third-party scripts: 66ms (7% of total)

Main Thread Breakdown

Other 40% Style & Layout 40% Rendering 8% Script Evaluation 7%
ScriptTotalScriptingParse/CompileParty
https://cutt.ly/695ms11ms3ms1st
https://cutt.ly/scripts/hero-anim.js?v=1179ms10ms1ms1st
Unattributable66ms2ms0ms3rd
A+
Page Weight Budget
365 KB transferred, 31 requests
PASS
365 KB transferred, 31 requests
Info::
Page weighs 936 KB (365 KB transferred)
Info::
31 HTTP requests
Info::
Estimated 0.07 g CO2 per page load
365 KB / 2.4 MB budget
365 KB transferred
31 requests
0.07 g CO2 per page load
Fonts 162.6 KiB 45%
JavaScript 68.2 KiB 19%
CSS 54.8 KiB 15%
HTML 52.1 KiB 14%
Other 14.5 KiB 4%
Images 12.1 KiB 3%
Other 638 B 0%
Other 411 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
5 fonts (163 KB)
PASS
5 fonts (163 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

163 KB total

Render-blocking

0

of 5

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 747 ms LCP 787 mshttps://fonts.gstatic.com/s/ubuntu/v20/4iCs6KVjbNBYlgoKfw72.woff24iCs6KVjbNBYlgoKfw72.woff2 https://fonts.gstatic.com/s/ubuntu/v20/4iCs6KVjbNBYlgoKfw72.woff2 — 34.1 KiB — 15 ms — font-display: swaphttps://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoC1CzjsGyN.woff24iCv6KVjbNBYlgoC1CzjsGy... https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoC1CzjsGyN.woff2 — 37.9 KiB — 20 ms — font-display: swaphttps://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCxCvjsGyN.woff24iCv6KVjbNBYlgoCxCvjsGy... https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCxCvjsGyN.woff2 — 29.1 KiB — 23 ms — font-display: swaphttps://fonts.gstatic.com/s/ubuntu/v20/4iCp6KVjbNBYlgoKejYHtFyPN4E.woff24iCp6KVjbNBYlgoKejYHtFy... https://fonts.gstatic.com/s/ubuntu/v20/4iCp6KVjbNBYlgoKejYHtFyPN4E.woff2 — 31.8 KiB — 28 ms — font-display: swaphttps://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCjC3jsGyN.woff24iCv6KVjbNBYlgoCjC3jsGy... https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCjC3jsGyN.woff2 — 29.8 KiB — 28 ms — font-display: swap
4iCs6KVjbNBYlgoKfw72.woff2 woff2 swap
Size 34 KB
Load time 15 ms
Start 390 ms
Risk FOUT — text flashes from fallback to web font
4iCv6KVjbNBYlgoC1CzjsGy... woff2 swap
Size 38 KB
Load time 20 ms
Start 390 ms
Risk FOUT — text flashes from fallback to web font
4iCv6KVjbNBYlgoCxCvjsGy... woff2 swap
Size 29 KB
Load time 23 ms
Start 390 ms
Risk FOUT — text flashes from fallback to web font
4iCp6KVjbNBYlgoKejYHtFy... woff2 swap
Size 32 KB
Load time 28 ms
Start 391 ms
Risk FOUT — text flashes from fallback to web font
4iCv6KVjbNBYlgoCjC3jsGy... woff2 swap
Size 30 KB
Load time 28 ms
Start 391 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
7 scripts, 0 KB unused
PASS
7 scripts, 0 KB unused
0 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://cutt.ly/scripts/jquery.js?v=0311202329 KB1st
https://cutt.ly/scripts/bootstrap.min.js?v=230220230121 KB1st
https://cutt.ly/scripts/url.js?v=28122024012 KB1st
https://cutt.ly/scripts/classie.js?v=22102024011 KB1st
https://cutt.ly/scripts/main.js?v=27062025013 KB1st
https://cutt.ly/scripts/cookieconsent.js?v=18112023207 KB1st
https://cutt.ly/scripts/hero-anim.js?v=16 KB1st
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
Page Weight Inventory
31 resources · 365 KB · 0 KB savings available
PASS
31 resources · 365 KB · 0 KB savings available
Info::
Within 1MB page-weight target
Got: 365 KB
Warning::
7 third-party resources (45% of weight)
31 resources · 365.3 KiB · 7 third-party Within 1MB page-weight target
Font 45% · 162.6 KiB
JavaScript 19% · 68.2 KiB
CSS 15% · 54.8 KiB
Document 14% · 52.5 KiB
Image 7% · 26.6 KiB
Other 0% · 638 B
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
31 requests over 1075ms
INFO
0 ms 500 ms 1.0 s FCP 747 ms LCP 787 mshttps://cutt.ly// https://cutt.ly/ — 200 — 52.1 KiB — 387 ms — h2https://cutt.ly/scripts/jquery.js?v=03112023/scripts/jquery.js?v=03112023 https://cutt.ly/scripts/jquery.js?v=03112023 — 200 — 29.2 KiB — 25 ms — h2https://cutt.ly/scripts/bootstrap.min.js?v=2302202301/scripts/bootstrap.min.js?v=2302202... https://cutt.ly/scripts/bootstrap.min.js?v=2302202301 — 200 — 20.9 KiB — 23 ms — h2https://cutt.ly/css/style_c.css?v=1204202601/css/style_c.css?v=1204202601 https://cutt.ly/css/style_c.css?v=1204202601 — 200 — 49.8 KiB — 25 ms — h2https://cutt.ly/site.webmanifest/site.webmanifest https://cutt.ly/site.webmanifest — 200 — 638 B — 214 ms — h3https://cutt.ly/scripts/url.js?v=2812202401/scripts/url.js?v=2812202401 https://cutt.ly/scripts/url.js?v=2812202401 — 200 — 1.8 KiB — 19 ms — h3https://cutt.ly/css/print.css?v=0412202201/css/print.css?v=0412202201 https://cutt.ly/css/print.css?v=0412202201 — 200 — 614 B — 14 ms — h3https://cutt.ly/img/link_bg.svg/img/link_bg.svg https://cutt.ly/img/link_bg.svg — 200 — 795 B — 15 ms — h3https://cutt.ly/img/link_bg_2.svg/img/link_bg_2.svg https://cutt.ly/img/link_bg_2.svg — 200 — 899 B — 16 ms — h3data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter i…www.w3.org/2000/svg' width='140' he... data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter i… — 200 — 0 B — 0 ms — datahttps://fonts.gstatic.com/s/ubuntu/v20/4iCs6KVjbNBYlgoKfw72.woff2fonts.gstatic.com/s/ubuntu/v20/4iCs... https://fonts.gstatic.com/s/ubuntu/v20/4iCs6KVjbNBYlgoKfw72.woff2 — 200 — 34.1 KiB — 15 ms — h3https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoC1CzjsGyN.woff2fonts.gstatic.com/s/ubuntu/v20/4iCv... https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoC1CzjsGyN.woff2 — 200 — 37.9 KiB — 20 ms — h3https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCxCvjsGyN.woff2fonts.gstatic.com/s/ubuntu/v20/4iCv... https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCxCvjsGyN.woff2 — 200 — 29.1 KiB — 23 ms — h3https://fonts.gstatic.com/s/ubuntu/v20/4iCp6KVjbNBYlgoKejYHtFyPN4E.woff2fonts.gstatic.com/s/ubuntu/v20/4iCp... https://fonts.gstatic.com/s/ubuntu/v20/4iCp6KVjbNBYlgoKejYHtFyPN4E.woff2 — 200 — 31.8 KiB — 28 ms — h3https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCjC3jsGyN.woff2fonts.gstatic.com/s/ubuntu/v20/4iCv... https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCjC3jsGyN.woff2 — 200 — 29.8 KiB — 28 ms — h3https://cutt.ly/img/favicon-32x32.png/img/favicon-32x32.png https://cutt.ly/img/favicon-32x32.png — 200 — 2.0 KiB — 19 ms — h3https://cutt.ly/img/cuttly_logo_sign_fff.svg/img/cuttly_logo_sign_fff.svg https://cutt.ly/img/cuttly_logo_sign_fff.svg — 200 — 957 B — 18 ms — h3data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxN…data:image/svg+xml;base64,PHN2ZyB4b... data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxN… — 200 — 0 B — 0 ms — datahttps://cutt.ly/surv_bg/star_1_main_a.svg/surv_bg/star_1_main_a.svg https://cutt.ly/surv_bg/star_1_main_a.svg — 200 — 959 B — 18 ms — h3https://cutt.ly/bioIcons/ico_bio_l.png/bioIcons/ico_bio_l.png https://cutt.ly/bioIcons/ico_bio_l.png — 200 — 4.0 KiB — 18 ms — h3https://cutt.ly/img/c_tick_2_g_w.svg/img/c_tick_2_g_w.svg https://cutt.ly/img/c_tick_2_g_w.svg — 200 — 966 B — 17 ms — h3https://cutt.ly/img/wrs.svg/img/wrs.svg https://cutt.ly/img/wrs.svg — 200 — 766 B — 19 ms — h3https://cutt.ly/scripts/classie.js?v=2210202401/scripts/classie.js?v=2210202401 https://cutt.ly/scripts/classie.js?v=2210202401 — 200 — 778 B — 14 ms — h3https://cutt.ly/scripts/main.js?v=2706202501/scripts/main.js?v=2706202501 https://cutt.ly/scripts/main.js?v=2706202501 — 200 — 2.9 KiB — 15 ms — h3https://cutt.ly/css/cookieconsent.css?v=2210202407/css/cookieconsent.css?v=2210202407 https://cutt.ly/css/cookieconsent.css?v=2210202407 — 200 — 4.4 KiB — 20 ms — h3https://cutt.ly/scripts/cookieconsent.js?v=1811202320/scripts/cookieconsent.js?v=1811202... https://cutt.ly/scripts/cookieconsent.js?v=1811202320 — 200 — 6.5 KiB — 18 ms — h3https://cutt.ly/scripts/hero-anim.js?v=1/scripts/hero-anim.js?v=1 https://cutt.ly/scripts/hero-anim.js?v=1 — 200 — 6.0 KiB — 21 ms — h3https://cutt.ly/scripts/getCookies.php/scripts/getCookies.php https://cutt.ly/scripts/getCookies.php — 200 — 411 B — 201 ms — h3https://cutt.ly/surv_bg/star_1_main_b.svg/surv_bg/star_1_main_b.svg https://cutt.ly/surv_bg/star_1_main_b.svg — 200 — 960 B — 15 ms — h3https://cutt.ly/img/favicon-32x32.png/img/favicon-32x32.png https://cutt.ly/img/favicon-32x32.png — 200 — 0 B — 3 ms — h3
0 ms 500 ms 1.0 s FCP 747 ms LCP 787 mshttps://cutt.ly// https://cutt.ly/ — 200 — 52.1 KiB — 387 ms — h2https://cutt.ly/scripts/jquery.js?v=03112023/scripts/jquery.js?v=03112023 https://cutt.ly/scripts/jquery.js?v=03112023 — 200 — 29.2 KiB — 25 ms — h2https://cutt.ly/scripts/bootstrap.min.js?v=2302202301/scripts/bootstrap.min.js?v=2302202... https://cutt.ly/scripts/bootstrap.min.js?v=2302202301 — 200 — 20.9 KiB — 23 ms — h2https://cutt.ly/css/style_c.css?v=1204202601/css/style_c.css?v=1204202601 https://cutt.ly/css/style_c.css?v=1204202601 — 200 — 49.8 KiB — 25 ms — h2https://cutt.ly/site.webmanifest/site.webmanifest https://cutt.ly/site.webmanifest — 200 — 638 B — 214 ms — h3https://cutt.ly/scripts/url.js?v=2812202401/scripts/url.js?v=2812202401 https://cutt.ly/scripts/url.js?v=2812202401 — 200 — 1.8 KiB — 19 ms — h3https://cutt.ly/css/print.css?v=0412202201/css/print.css?v=0412202201 https://cutt.ly/css/print.css?v=0412202201 — 200 — 614 B — 14 ms — h3https://cutt.ly/img/link_bg.svg/img/link_bg.svg https://cutt.ly/img/link_bg.svg — 200 — 795 B — 15 ms — h3https://cutt.ly/img/link_bg_2.svg/img/link_bg_2.svg https://cutt.ly/img/link_bg_2.svg — 200 — 899 B — 16 ms — h3data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter i…www.w3.org/2000/svg' width='140' he... data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter i… — 200 — 0 B — 0 ms — datahttps://fonts.gstatic.com/s/ubuntu/v20/4iCs6KVjbNBYlgoKfw72.woff2fonts.gstatic.com/s/ubuntu/v20/4iCs... https://fonts.gstatic.com/s/ubuntu/v20/4iCs6KVjbNBYlgoKfw72.woff2 — 200 — 34.1 KiB — 15 ms — h3https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoC1CzjsGyN.woff2fonts.gstatic.com/s/ubuntu/v20/4iCv... https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoC1CzjsGyN.woff2 — 200 — 37.9 KiB — 20 ms — h3https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCxCvjsGyN.woff2fonts.gstatic.com/s/ubuntu/v20/4iCv... https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCxCvjsGyN.woff2 — 200 — 29.1 KiB — 23 ms — h3https://fonts.gstatic.com/s/ubuntu/v20/4iCp6KVjbNBYlgoKejYHtFyPN4E.woff2fonts.gstatic.com/s/ubuntu/v20/4iCp... https://fonts.gstatic.com/s/ubuntu/v20/4iCp6KVjbNBYlgoKejYHtFyPN4E.woff2 — 200 — 31.8 KiB — 28 ms — h3https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCjC3jsGyN.woff2fonts.gstatic.com/s/ubuntu/v20/4iCv... https://fonts.gstatic.com/s/ubuntu/v20/4iCv6KVjbNBYlgoCjC3jsGyN.woff2 — 200 — 29.8 KiB — 28 ms — h3https://cutt.ly/img/favicon-32x32.png/img/favicon-32x32.png https://cutt.ly/img/favicon-32x32.png — 200 — 2.0 KiB — 19 ms — h3https://cutt.ly/img/cuttly_logo_sign_fff.svg/img/cuttly_logo_sign_fff.svg https://cutt.ly/img/cuttly_logo_sign_fff.svg — 200 — 957 B — 18 ms — h3data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxN…data:image/svg+xml;base64,PHN2ZyB4b... data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAxN… — 200 — 0 B — 0 ms — datahttps://cutt.ly/surv_bg/star_1_main_a.svg/surv_bg/star_1_main_a.svg https://cutt.ly/surv_bg/star_1_main_a.svg — 200 — 959 B — 18 ms — h3https://cutt.ly/bioIcons/ico_bio_l.png/bioIcons/ico_bio_l.png https://cutt.ly/bioIcons/ico_bio_l.png — 200 — 4.0 KiB — 18 ms — h3https://cutt.ly/img/c_tick_2_g_w.svg/img/c_tick_2_g_w.svg https://cutt.ly/img/c_tick_2_g_w.svg — 200 — 966 B — 17 ms — h3https://cutt.ly/img/wrs.svg/img/wrs.svg https://cutt.ly/img/wrs.svg — 200 — 766 B — 19 ms — h3https://cutt.ly/scripts/classie.js?v=2210202401/scripts/classie.js?v=2210202401 https://cutt.ly/scripts/classie.js?v=2210202401 — 200 — 778 B — 14 ms — h3https://cutt.ly/scripts/main.js?v=2706202501/scripts/main.js?v=2706202501 https://cutt.ly/scripts/main.js?v=2706202501 — 200 — 2.9 KiB — 15 ms — h3https://cutt.ly/css/cookieconsent.css?v=2210202407/css/cookieconsent.css?v=2210202407 https://cutt.ly/css/cookieconsent.css?v=2210202407 — 200 — 4.4 KiB — 20 ms — h3https://cutt.ly/scripts/cookieconsent.js?v=1811202320/scripts/cookieconsent.js?v=1811202... https://cutt.ly/scripts/cookieconsent.js?v=1811202320 — 200 — 6.5 KiB — 18 ms — h3https://cutt.ly/scripts/hero-anim.js?v=1/scripts/hero-anim.js?v=1 https://cutt.ly/scripts/hero-anim.js?v=1 — 200 — 6.0 KiB — 21 ms — h3https://cutt.ly/scripts/getCookies.php/scripts/getCookies.php https://cutt.ly/scripts/getCookies.php — 200 — 411 B — 201 ms — h3https://cutt.ly/surv_bg/star_1_main_b.svg/surv_bg/star_1_main_b.svg https://cutt.ly/surv_bg/star_1_main_b.svg — 200 — 960 B — 15 ms — h3https://cutt.ly/img/favicon-32x32.png/img/favicon-32x32.png https://cutt.ly/img/favicon-32x32.png — 200 — 0 B — 3 ms — h3https://cutt.ly/img/android-chrome-192x192.png/img/android-chrome-192x192.png https://cutt.ly/img/android-chrome-192x192.png — 200 — 14.5 KiB — 16 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
7% of JavaScript execution is third-party
First-party Third-party 66ms · 0KB · zł5/mo
Unattributable
Other
Optional
Execution 66ms
Transfer 0 KB
Monthly Cost zł5/mo

How third-party costs are calculated

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

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