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https://timeanddate.com

Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
3
REVIEW
3
PASS
9
INFO
2

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

Mobile Desktop
60
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
89
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.

2.74 s

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

9.15 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

422 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.000

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

2.96 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

9.22 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
17
9 PASS 3 REVIEW 3 FIX
D
Third-Party Impact
Action
100% third-party, 0 ms blocking
FIX
100% third-party, 0 ms blocking
Warning::
Third-party code accounts for 100% of page weight (965.8 KiB of 966.0 KiB)
Info::
Third-party blocking time is low (0 ms)
100%
First-party Third-party
D
JS Execution Cost
Action
2077ms total JS execution
FIX
2077ms total JS execution
Warning::
Unattributable: 506ms CPU time
Warning::
https://www.timeanddate.com/: 469ms CPU time
Info::
https://securepubads.g.doubleclick.net/pagead/mana...: 230ms CPU time
Info::
https://web.cmp.usercentrics.eu/ui/v/3.116.0/TcfCm...: 214ms CPU time
Info::
https://c.tadst.com/com/common/pb/prebid_com_v3_97...: 138ms CPU time
Warning::
Third-party scripts: 2077ms (100% of total)

Main Thread Breakdown

Script Evaluation 45% Other 24% Style & Layout 13% Script Parsing & Compilation 9%
ScriptTotalScriptingParse/CompileParty
Unattributable506ms48ms0ms3rd
https://www.timeanddate.com/469ms47ms5ms3rd
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946230ms152ms60ms3rd
https://web.cmp.usercentrics.eu/ui/v/3.116.0/TcfCmpController.cceb76e7.js214ms187ms3ms3rd
https://c.tadst.com/com/common/pb/prebid_com_v3_97c181357c50.cmp_0.js138ms99ms26ms3rd
https://c.amazon-adsystem.com/aax2/apstag.js105ms71ms27ms3rd
https://c.tadst.com/com/common/v/admgr_v28.js89ms83ms1ms3rd
https://securepubads.g.doubleclick.net/tag/js/gpt.js72ms63ms8ms3rd
https://web.cmp.usercentrics.eu/ui/TvGdprCmpView.f15b9a90.js67ms53ms8ms3rd
https://web.cmp.usercentrics.eu/ui/v/3.116.0/UcTcfCmpView.d21ff1d8.js67ms1ms11ms3rd

Showing top 10 of 12 scripts

F
HTTP Caching
Action
No cache headers
FIX
No cache headers
Warning::
No Cache-Control header found
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.

B
Image Optimization
25 images, 0 KB saveable
REVIEW
25 images, 0 KB saveable
Info::
All images are well-optimized
25 images 135 KB
0 oversized -0 KB
24 legacy format
0 missing dimensions CLS risk
C
JS Bundles
Action
18 scripts, 295 KB unused
REVIEW
18 scripts, 295 KB unused
Warning::
https://securepubads.g.doubleclick.net/pagead/mana...: 135 KB unused (72%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://c.tadst.com/com/common/pb/prebid_com_v3_97...: 79 KB unused (81%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://c.amazon-adsystem.com/aax2/apstag.js: 50 KB unused (56%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://web.cmp.usercentrics.eu/ui/v/3.116.0/WebSd...: 31 KB unused (55%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 295 KB
295 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946187 KB135 KB (72%)✓3rd
https://c.tadst.com/com/common/pb/prebid_com_v3_97c181357c50.cmp_0.js98 KB79 KB (81%)✓3rd
https://c.amazon-adsystem.com/aax2/apstag.js91 KB50 KB (56%)✓3rd
https://web.cmp.usercentrics.eu/ui/v/3.116.0/WebSdk.lib.d00a93b7.js56 KB31 KB (55%)✓3rd
https://c.amazon-adsystem.com/bao-csm/aps-comm/aps_csm.js3 KB—✓3rd
https://tags.crwdcntrl.net/lt/c/16576/sync.min.js13 KB—✓3rd
https://securepubads.g.doubleclick.net/tag/js/gpt.js34 KB—✓3rd
https://c.tadst.com/com/common/v/wcommon_v79.js20 KB—✓3rd
https://web.cmp.usercentrics.eu/ui/loader.js15 KB—✓3rd
https://config.aps.amazon-adsystem.com/configs/12d5d789-63e3-47bc-ba31-070e97a96f2c2 KB—✓3rd

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

Consider code splitting or tree shaking to reduce unused code.

Why this matters

This bundle has high unused code — code-split or tree-shake to ship only what executes.

Source: web.dev / Lighthouse coverage

B
Page Weight Inventory
62 resources · 966 KB · 295 KB savings available
REVIEW
62 resources · 966 KB · 295 KB savings available
Info::
Within 1MB page-weight target
Got: 966 KB
Info::
~295 KB of savings available
Warning::
61 third-party resources (100% of weight)
62 resources · 966.0 KiB · 61 third-party Within 1MB page-weight target
JavaScript 67% · 647.1 KiB
Other 14% · 137.2 KiB
Image 14% · 136.4 KiB
CSS 3% · 25.3 KiB
Document 1% · 14.4 KiB
Font 1% · 5.6 KiB

~295.5 KiB of savings available

Remove unused JavaScript: 295.5 KiB
A
Page Weight Budget
966 KB transferred, 62 requests
PASS
966 KB transferred, 62 requests
Info::
Page weighs 3.5 MB (966 KB transferred)
Warning::
JavaScript is 644 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 644 KB
Info::
62 HTTP requests
Info::
Estimated 0.20 g CO2 per page load
966 KB / 2.4 MB budget
966 KB transferred
62 requests
0.20 g CO2 per page load
JavaScript 644.1 KiB 67%
Images 134.8 KiB 14%
Other 110.9 KiB 11%
CSS 25.3 KiB 3%
Other 24.8 KiB 3%
HTML 14.1 KiB 1%
Other 6.1 KiB 1%
Fonts 5.6 KiB 1%
Other 431 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget

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

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
1 fonts (6 KB)
PASS
1 fonts (6 KB)
Info::
1 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

1

6 KB total

Render-blocking

0

of 1

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 2.7 s LCP 9.1 shttps://www.timeanddate.com/common/fonts/iconfont.woff2?v0iconfont.woff2 https://www.timeanddate.com/common/fonts/iconfont.woff2?v0 — 5.6 KiB — 34 ms — font-display: swap
iconfont.woff2 woff2 swap
Size 6 KB
Load time 34 ms
Start 189 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+
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+
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+
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
62 requests over 1700ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 2.7 s LCP 9.1 shttps://timeanddate.com// https://timeanddate.com/ — 301 — 207 B — 85 ms — h2https://www.timeanddate.com/www.timeanddate.com/ https://www.timeanddate.com/ — 200 — 14.1 KiB — 88 ms — h2https://www.timeanddate.com/common/fonts/iconfont.woff2?v0www.timeanddate.com/common/fonts/ic... https://www.timeanddate.com/common/fonts/iconfont.woff2?v0 — 200 — 5.6 KiB — 34 ms — h2https://c.tadst.com/com/common/v/global_v55.cssc.tadst.com/com/common/v/global_v55... https://c.tadst.com/com/common/v/global_v55.css — 200 — 15.9 KiB — 123 ms — h3https://web.cmp.usercentrics.eu/ui/loader.jsweb.cmp.usercentrics.eu/ui/loader.j... https://web.cmp.usercentrics.eu/ui/loader.js — 200 — 15.3 KiB — 83 ms — h2https://c.tadst.com/com/common/pb/prebid_com_v3_97c181357c50.cmp_0.jsc.tadst.com/com/common/pb/prebid_co... https://c.tadst.com/com/common/pb/prebid_com_v3_97c181357c50.cmp_0.js — 200 — 98.2 KiB — 167 ms — h3https://c.tadst.com/com/common/frontend/40/assets/browser.cssc.tadst.com/com/common/frontend/40/... https://c.tadst.com/com/common/frontend/40/assets/browser.css — 200 — 4.4 KiB — 122 ms — h3https://c.tadst.com/com/common/frontend/40/assets/common.cssc.tadst.com/com/common/frontend/40/... https://c.tadst.com/com/common/frontend/40/assets/common.css — 200 — 5.0 KiB — 123 ms — h3https://c.tadst.com/com/common/v/wcommon_v79.jsc.tadst.com/com/common/v/wcommon_v7... https://c.tadst.com/com/common/v/wcommon_v79.js — 200 — 19.6 KiB — 157 ms — h3https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 33.9 KiB — 116 ms — h3https://c.amazon-adsystem.com/aax2/apstag.jsc.amazon-adsystem.com/aax2/apstag.j... https://c.amazon-adsystem.com/aax2/apstag.js — 200 — 91.0 KiB — 110 ms — h2https://c.tadst.com/com/common/v/admgr_v28.jsc.tadst.com/com/common/v/admgr_v28.... https://c.tadst.com/com/common/v/admgr_v28.js — 200 — 3.9 KiB — 164 ms — h3https://www.timeanddate.com/site.webmanifestwww.timeanddate.com/site.webmanifes... https://www.timeanddate.com/site.webmanifest — 200 — 431 B — 56 ms — h3https://c.tadst.com/gfx/w/svg/wt-1.svgc.tadst.com/gfx/w/svg/wt-1.svg https://c.tadst.com/gfx/w/svg/wt-1.svg — 200 — 811 B — 54 ms — h3https://c.tadst.com/gfx/128x128/og-current-weather.png?1c.tadst.com/gfx/128x128/og-current-... https://c.tadst.com/gfx/128x128/og-current-weather.png?1 — 200 — 14.3 KiB — 60 ms — h3https://c.tadst.com/gfx/128x128/og-two-weeks-weather-forecast.png?1c.tadst.com/gfx/128x128/og-two-week... https://c.tadst.com/gfx/128x128/og-two-weeks-weather-forecast.png?1 — 200 — 14.9 KiB — 59 ms — h3https://c.tadst.com/gfx/128x128/og-hour-by-hour-weather.png?1c.tadst.com/gfx/128x128/og-hour-by-... https://c.tadst.com/gfx/128x128/og-hour-by-hour-weather.png?1 — 200 — 11.8 KiB — 60 ms — h3https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946securepubads.g.doubleclick.net/page... https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 — 200 — 187.4 KiB — 67 ms — h3https://c.tadst.com/gfx/n/select-arrow3.svgc.tadst.com/gfx/n/select-arrow3.svg https://c.tadst.com/gfx/n/select-arrow3.svg — 200 — 486 B — 26 ms — h3https://c.tadst.com/gfx/n/logo/logo-2021--horizontal-inverted-darkbg.svgc.tadst.com/gfx/n/logo/logo-2021--h... https://c.tadst.com/gfx/n/logo/logo-2021--horizontal-inverted-darkbg.svg — 200 — 1.3 KiB — 25 ms — h3https://c.tadst.com/gfx/64x64/og-worldclock-main-indexes.png?1c.tadst.com/gfx/64x64/og-worldclock... https://c.tadst.com/gfx/64x64/og-worldclock-main-indexes.png?1 — 200 — 5.7 KiB — 42 ms — h3https://c.tadst.com/gfx/64x64/og-world-clock.png?1c.tadst.com/gfx/64x64/og-world-cloc... https://c.tadst.com/gfx/64x64/og-world-clock.png?1 — 200 — 6.0 KiB — 34 ms — h3https://c.tadst.com/gfx/64x64/tz-map-1518922800.png?2c.tadst.com/gfx/64x64/tz-map-151892... https://c.tadst.com/gfx/64x64/tz-map-1518922800.png?2 — 200 — 6.4 KiB — 40 ms — h3https://c.tadst.com/gfx/64x64/og-tz-converter.png?1c.tadst.com/gfx/64x64/og-tz-convert... https://c.tadst.com/gfx/64x64/og-tz-converter.png?1 — 200 — 6.1 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/meeting-planner.png?1c.tadst.com/gfx/64x64/meeting-plann... https://c.tadst.com/gfx/64x64/meeting-planner.png?1 — 200 — 6.5 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/og-event-time-announcer.png?1c.tadst.com/gfx/64x64/og-event-time... https://c.tadst.com/gfx/64x64/og-event-time-announcer.png?1 — 200 — 5.4 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/og-printable-calendar.png?3c.tadst.com/gfx/64x64/og-printable-... https://c.tadst.com/gfx/64x64/og-printable-calendar.png?3 — 200 — 4.7 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/og-add-your-events.png?3c.tadst.com/gfx/64x64/og-add-your-e... https://c.tadst.com/gfx/64x64/og-add-your-events.png?3 — 200 — 5.2 KiB — 43 ms — h3https://c.tadst.com/gfx/300x168/meteor-watchers.jpg?1c.tadst.com/gfx/300x168/meteor-watc... https://c.tadst.com/gfx/300x168/meteor-watchers.jpg?1 — 200 — 19.7 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/the-sky-in-april-2026-small.png?1c.tadst.com/gfx/64x64/the-sky-in-ap... https://c.tadst.com/gfx/64x64/the-sky-in-april-2026-small.png?1 — 200 — 5.0 KiB — 42 ms — h3
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s 6.0 s 7.0 s 8.0 s 9.0 s FCP 2.7 s LCP 9.1 shttps://timeanddate.com// https://timeanddate.com/ — 301 — 207 B — 85 ms — h2https://www.timeanddate.com/www.timeanddate.com/ https://www.timeanddate.com/ — 200 — 14.1 KiB — 88 ms — h2https://www.timeanddate.com/common/fonts/iconfont.woff2?v0www.timeanddate.com/common/fonts/ic... https://www.timeanddate.com/common/fonts/iconfont.woff2?v0 — 200 — 5.6 KiB — 34 ms — h2https://c.tadst.com/com/common/v/global_v55.cssc.tadst.com/com/common/v/global_v55... https://c.tadst.com/com/common/v/global_v55.css — 200 — 15.9 KiB — 123 ms — h3https://web.cmp.usercentrics.eu/ui/loader.jsweb.cmp.usercentrics.eu/ui/loader.j... https://web.cmp.usercentrics.eu/ui/loader.js — 200 — 15.3 KiB — 83 ms — h2https://c.tadst.com/com/common/pb/prebid_com_v3_97c181357c50.cmp_0.jsc.tadst.com/com/common/pb/prebid_co... https://c.tadst.com/com/common/pb/prebid_com_v3_97c181357c50.cmp_0.js — 200 — 98.2 KiB — 167 ms — h3https://c.tadst.com/com/common/frontend/40/assets/browser.cssc.tadst.com/com/common/frontend/40/... https://c.tadst.com/com/common/frontend/40/assets/browser.css — 200 — 4.4 KiB — 122 ms — h3https://c.tadst.com/com/common/frontend/40/assets/common.cssc.tadst.com/com/common/frontend/40/... https://c.tadst.com/com/common/frontend/40/assets/common.css — 200 — 5.0 KiB — 123 ms — h3https://c.tadst.com/com/common/v/wcommon_v79.jsc.tadst.com/com/common/v/wcommon_v7... https://c.tadst.com/com/common/v/wcommon_v79.js — 200 — 19.6 KiB — 157 ms — h3https://securepubads.g.doubleclick.net/tag/js/gpt.jssecurepubads.g.doubleclick.net/tag/... https://securepubads.g.doubleclick.net/tag/js/gpt.js — 200 — 33.9 KiB — 116 ms — h3https://c.amazon-adsystem.com/aax2/apstag.jsc.amazon-adsystem.com/aax2/apstag.j... https://c.amazon-adsystem.com/aax2/apstag.js — 200 — 91.0 KiB — 110 ms — h2https://c.tadst.com/com/common/v/admgr_v28.jsc.tadst.com/com/common/v/admgr_v28.... https://c.tadst.com/com/common/v/admgr_v28.js — 200 — 3.9 KiB — 164 ms — h3https://www.timeanddate.com/site.webmanifestwww.timeanddate.com/site.webmanifes... https://www.timeanddate.com/site.webmanifest — 200 — 431 B — 56 ms — h3https://c.tadst.com/gfx/w/svg/wt-1.svgc.tadst.com/gfx/w/svg/wt-1.svg https://c.tadst.com/gfx/w/svg/wt-1.svg — 200 — 811 B — 54 ms — h3https://c.tadst.com/gfx/128x128/og-current-weather.png?1c.tadst.com/gfx/128x128/og-current-... https://c.tadst.com/gfx/128x128/og-current-weather.png?1 — 200 — 14.3 KiB — 60 ms — h3https://c.tadst.com/gfx/128x128/og-two-weeks-weather-forecast.png?1c.tadst.com/gfx/128x128/og-two-week... https://c.tadst.com/gfx/128x128/og-two-weeks-weather-forecast.png?1 — 200 — 14.9 KiB — 59 ms — h3https://c.tadst.com/gfx/128x128/og-hour-by-hour-weather.png?1c.tadst.com/gfx/128x128/og-hour-by-... https://c.tadst.com/gfx/128x128/og-hour-by-hour-weather.png?1 — 200 — 11.8 KiB — 60 ms — h3https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946securepubads.g.doubleclick.net/page... https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 — 200 — 187.4 KiB — 67 ms — h3https://c.tadst.com/gfx/n/select-arrow3.svgc.tadst.com/gfx/n/select-arrow3.svg https://c.tadst.com/gfx/n/select-arrow3.svg — 200 — 486 B — 26 ms — h3https://c.tadst.com/gfx/n/logo/logo-2021--horizontal-inverted-darkbg.svgc.tadst.com/gfx/n/logo/logo-2021--h... https://c.tadst.com/gfx/n/logo/logo-2021--horizontal-inverted-darkbg.svg — 200 — 1.3 KiB — 25 ms — h3https://c.tadst.com/gfx/64x64/og-worldclock-main-indexes.png?1c.tadst.com/gfx/64x64/og-worldclock... https://c.tadst.com/gfx/64x64/og-worldclock-main-indexes.png?1 — 200 — 5.7 KiB — 42 ms — h3https://c.tadst.com/gfx/64x64/og-world-clock.png?1c.tadst.com/gfx/64x64/og-world-cloc... https://c.tadst.com/gfx/64x64/og-world-clock.png?1 — 200 — 6.0 KiB — 34 ms — h3https://c.tadst.com/gfx/64x64/tz-map-1518922800.png?2c.tadst.com/gfx/64x64/tz-map-151892... https://c.tadst.com/gfx/64x64/tz-map-1518922800.png?2 — 200 — 6.4 KiB — 40 ms — h3https://c.tadst.com/gfx/64x64/og-tz-converter.png?1c.tadst.com/gfx/64x64/og-tz-convert... https://c.tadst.com/gfx/64x64/og-tz-converter.png?1 — 200 — 6.1 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/meeting-planner.png?1c.tadst.com/gfx/64x64/meeting-plann... https://c.tadst.com/gfx/64x64/meeting-planner.png?1 — 200 — 6.5 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/og-event-time-announcer.png?1c.tadst.com/gfx/64x64/og-event-time... https://c.tadst.com/gfx/64x64/og-event-time-announcer.png?1 — 200 — 5.4 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/og-printable-calendar.png?3c.tadst.com/gfx/64x64/og-printable-... https://c.tadst.com/gfx/64x64/og-printable-calendar.png?3 — 200 — 4.7 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/og-add-your-events.png?3c.tadst.com/gfx/64x64/og-add-your-e... https://c.tadst.com/gfx/64x64/og-add-your-events.png?3 — 200 — 5.2 KiB — 43 ms — h3https://c.tadst.com/gfx/300x168/meteor-watchers.jpg?1c.tadst.com/gfx/300x168/meteor-watc... https://c.tadst.com/gfx/300x168/meteor-watchers.jpg?1 — 200 — 19.7 KiB — 43 ms — h3https://c.tadst.com/gfx/64x64/the-sky-in-april-2026-small.png?1c.tadst.com/gfx/64x64/the-sky-in-ap... https://c.tadst.com/gfx/64x64/the-sky-in-april-2026-small.png?1 — 200 — 5.0 KiB — 42 ms — h3https://c.tadst.com/gfx/64x64/april-2026-moon-phase-times-small.jpg?1c.tadst.com/gfx/64x64/april-2026-mo... https://c.tadst.com/gfx/64x64/april-2026-moon-phase-times-small.jpg?1 — 200 — 1.4 KiB — 42 ms — h3https://c.tadst.com/gfx/64x64/og-duration-calculator.png?3c.tadst.com/gfx/64x64/og-duration-c... https://c.tadst.com/gfx/64x64/og-duration-calculator.png?3 — 200 — 6.7 KiB — 42 ms — h3https://c.tadst.com/gfx/64x64/og-date-calculator.png?1c.tadst.com/gfx/64x64/og-date-calcu... https://c.tadst.com/gfx/64x64/og-date-calculator.png?1 — 200 — 5.3 KiB — 42 ms — h3https://www.timeanddate.com/scripts/ts.php?ut=1776798853979&cb=0.34020281623154747www.timeanddate.com/scripts/ts.php?... https://www.timeanddate.com/scripts/ts.php?ut=1776798853979&cb=0.34020281623154747 — 200 — 306 B — 52 ms — h3https://c.tadst.com/gfx/n/i/spr-footer-social.pngc.tadst.com/gfx/n/i/spr-footer-soci... https://c.tadst.com/gfx/n/i/spr-footer-social.png — 200 — 2.7 KiB — 22 ms — h3https://web.cmp.usercentrics.eu/ui/v/3.116.0/WebSdk.lib.d00a93b7.jsweb.cmp.usercentrics.eu/ui/v/3.116.... https://web.cmp.usercentrics.eu/ui/v/3.116.0/WebSdk.lib.d00a93b7.js — 200 — 56.3 KiB — 43 ms — h2https://c.amazon-adsystem.com/bao-csm/aps-comm/aps_csm.jsc.amazon-adsystem.com/bao-csm/aps-c... https://c.amazon-adsystem.com/bao-csm/aps-comm/aps_csm.js — 200 — 3.1 KiB — 54 ms — h2https://config.aps.amazon-adsystem.com/configs/12d5d789-63e3-47bc-ba31-070e97a96f2cconfig.aps.amazon-adsystem.com/conf... https://config.aps.amazon-adsystem.com/configs/12d5d789-63e3-47bc-ba31-070e97a96f2c — 200 — 1.7 KiB — 90 ms — h2https://c.amazon-adsystem.com/cdn/prod/config?src=600&u=https%3A%2F%2Fwww.timeanddate.com&pubid=12d5d789-63e3-47bc-ba31-070e97a96f2cc.amazon-adsystem.com/cdn/prod/conf... https://c.amazon-adsystem.com/cdn/prod/config?src=600&u=https%3A%2F%2Fwww.timeanddate.com&pubid=12d5d789-63e3-47bc-ba31-070e97a96f2c — 200 — 2.7 KiB — 21 ms — h2https://secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.jssecure.cdn.fastclick.net/js/pubcid/... https://secure.cdn.fastclick.net/js/pubcid/latest/pubcid.min.js — 200 — 21.7 KiB — 47 ms — h2https://tags.crwdcntrl.net/lt/c/16576/sync.min.jstags.crwdcntrl.net/lt/c/16576/sync.... https://tags.crwdcntrl.net/lt/c/16576/sync.min.js — 200 — 13.1 KiB — 85 ms — h2https://cdn.id5-sync.com/api/1.0/id5-api.jscdn.id5-sync.com/api/1.0/id5-api.js https://cdn.id5-sync.com/api/1.0/id5-api.js — 200 — 34.6 KiB — 103 ms — h2https://v1.api.service.cmp.usercentrics.eu/latest/ruleSetData?id=x3xzd5lGWlRPSpv1.api.service.cmp.usercentrics.eu/... https://v1.api.service.cmp.usercentrics.eu/latest/ruleSetData?id=x3xzd5lGWlRPSp — 200 — 595 B — 76 ms — h2https://securepubads.g.doubleclick.net/pagead/managed/dict/m202604210101/gptsecurepubads.g.doubleclick.net/page... https://securepubads.g.doubleclick.net/pagead/managed/dict/m202604210101/gpt — 200 — 23.0 KiB — 37 ms — h3https://v1.api.service.cmp.usercentrics.eu/latest/core/8wRB8jj0PxQ6YXv1.api.service.cmp.usercentrics.eu/... https://v1.api.service.cmp.usercentrics.eu/latest/core/8wRB8jj0PxQ6YX — 200 — 752 B — 23 ms — h2https://api.id5-sync.com/analytics/1517/id5-api-jsapi.id5-sync.com/analytics/1517/id5... https://api.id5-sync.com/analytics/1517/id5-api-js — 200 — 691 B — 109 ms — h2https://app.usercentrics.eu/session/1px.png?settingsId=8wRB8jj0PxQ6YXapp.usercentrics.eu/session/1px.png... https://app.usercentrics.eu/session/1px.png?settingsId=8wRB8jj0PxQ6YX — 200 — 1.0 KiB — 82 ms — h2https://v1.api.service.cmp.usercentrics.eu/latest/1/cmp/en/TCF/8wRB8jj0PxQ6YX/52.3.140/52.3.140?activeTcfVendorsListVersion=155&previousTcfVendorsListVersion=155&previousTcfPolicyVersion=5v1.api.service.cmp.usercentrics.eu/... https://v1.api.service.cmp.usercentrics.eu/latest/1/cmp/en/TCF/8wRB8jj0PxQ6YX/52.3.140/52.3.140?activeTcfVendorsListVersion=155&previousTcfVendorsListVersion=155&previousTcfPolicyVersion=5 — 200 — 108.8 KiB — 53 ms — h3https://c.tadst.com/favicon-32x32.pngc.tadst.com/favicon-32x32.png https://c.tadst.com/favicon-32x32.png — 200 — 954 B — 25 ms — h3https://c.tadst.com/favicon-16x16.pngc.tadst.com/favicon-16x16.png https://c.tadst.com/favicon-16x16.png — 200 — 669 B — 23 ms — h3https://web.cmp.usercentrics.eu/ui/v/3.116.0/TcfCmpController.cceb76e7.jsweb.cmp.usercentrics.eu/ui/v/3.116.... https://web.cmp.usercentrics.eu/ui/v/3.116.0/TcfCmpController.cceb76e7.js — 200 — 11.7 KiB — 22 ms — h3https://uct.service.usercentrics.eu/uct?v=2&sid=8wRB8jj0PxQ6YX&t=24&abv=&r=https%3A%2F%2Fwww.timeanddate.com%2F&cb=1776798854405uct.service.usercentrics.eu/uct?v=2... https://uct.service.usercentrics.eu/uct?v=2&sid=8wRB8jj0PxQ6YX&t=24&abv=&r=https%3A%2F%2Fwww.timeanddate.com%2F&cb=1776798854405 — 200 — 255 B — 97 ms — h2https://consent-api.service.consent.usercentrics.eu/consent/uw/3consent-api.service.consent.usercen... https://consent-api.service.consent.usercentrics.eu/consent/uw/3 — 204 — 0 B — 91 ms — h2https://web.cmp.usercentrics.eu/ui/TvGdprCmpView.f15b9a90.jsweb.cmp.usercentrics.eu/ui/TvGdprCm... https://web.cmp.usercentrics.eu/ui/TvGdprCmpView.f15b9a90.js — 200 — 29.6 KiB — 36 ms — h3https://web.cmp.usercentrics.eu/ui/v/3.116.0/UcTcfCmpView.d21ff1d8.jsweb.cmp.usercentrics.eu/ui/v/3.116.... https://web.cmp.usercentrics.eu/ui/v/3.116.0/UcTcfCmpView.d21ff1d8.js — 200 — 22.4 KiB — 31 ms — h3https://uct.service.usercentrics.eu/uct?v=2&sid=8wRB8jj0PxQ6YX&t=1&abv=&r=https%3A%2F%2Fwww.timeanddate.com%2F&cb=1776798854458uct.service.usercentrics.eu/uct?v=2... https://uct.service.usercentrics.eu/uct?v=2&sid=8wRB8jj0PxQ6YX&t=1&abv=&r=https%3A%2F%2Fwww.timeanddate.com%2F&cb=1776798854458 — 200 — 113 B — 42 ms — h2https://web.cmp.usercentrics.eu/ui/v/3.116.0/secondLayer.b796d0f0.jsweb.cmp.usercentrics.eu/ui/v/3.116.... https://web.cmp.usercentrics.eu/ui/v/3.116.0/secondLayer.b796d0f0.js — 200 — 3.0 KiB — 21 ms — h3https://web.cmp.usercentrics.eu/ui/v/3.116.0/getToastifyStyle.4f0a73d7.jsweb.cmp.usercentrics.eu/ui/v/3.116.... https://web.cmp.usercentrics.eu/ui/v/3.116.0/getToastifyStyle.4f0a73d7.js — 200 — 714 B — 22 ms — h3https://consent-api.service.consent.usercentrics.eu/consent/uw/3consent-api.service.consent.usercen... https://consent-api.service.consent.usercentrics.eu/consent/uw/3 — 201 — 75 B — 60 ms — h2https://c.tadst.com/gfx/n/logo/logo-2021--horizontal-color-whitebg.svgc.tadst.com/gfx/n/logo/logo-2021--h... https://c.tadst.com/gfx/n/logo/logo-2021--horizontal-color-whitebg.svg — 200 — 3.1 KiB — 25 ms — h3data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2248%22%2…data:image/svg+xml,%3Csvg%20xmlns%3... data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2248%22%2… — 200 — 0 B — 0 ms — datahttps://pagead2.googlesyndication.com/pagead/ping?e=1pagead2.googlesyndication.com/pagea... https://pagead2.googlesyndication.com/pagead/ping?e=1 — 204 — 20 B — 104 ms — h3
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100% of JavaScript execution is third-party
First-party Third-party 2077ms · 570KB · $28/mo
Unattributable
Other
Costly
Execution 506ms
Transfer 0 KB
Monthly Cost $7/mo
www.timeanddate.com
Other
Costly
Execution 469ms
Transfer 14 KB
Monthly Cost $6/mo
securepubads.g.doubleclick.net
Other
Costly
Execution 230ms
Transfer 187 KB
Unused 72%
Monthly Cost $3/mo
web.cmp.usercentrics.eu
Other
Costly
Execution 214ms
Transfer 12 KB
Monthly Cost $3/mo
c.tadst.com
Other
Optional
Execution 138ms
Transfer 98 KB
Unused 81%
Monthly Cost $2/mo
c.amazon-adsystem.com
Other
Optional
Execution 105ms
Transfer 91 KB
Unused 56%
Monthly Cost $1/mo
c.tadst.com
Other
Optional
Execution 89ms
Transfer 4 KB
Monthly Cost $1/mo
securepubads.g.doubleclick.net
Other
Optional
Execution 72ms
Transfer 34 KB
Monthly Cost $1/mo
web.cmp.usercentrics.eu
Other
Optional
Execution 67ms
Transfer 30 KB
Monthly Cost $1/mo
web.cmp.usercentrics.eu
Other
Optional
Execution 67ms
Transfer 22 KB
Monthly Cost $1/mo
web.cmp.usercentrics.eu
Other
Optional
Execution 65ms
Transfer 56 KB
Unused 55%
Monthly Cost $1/mo
secure.cdn.fastclick.net
Other
Optional
Execution 53ms
Transfer 22 KB
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Unattributable adds 506ms and costs ~$7/month
  • www.timeanddate.com adds 469ms and costs ~$6/month
  • securepubads.g.doubleclick.net adds 230ms and costs ~$3/month
  • web.cmp.usercentrics.eu adds 214ms and costs ~$3/month

100% 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

Unattributable takes 506ms 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.timeanddate.com takes 469ms 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 230ms 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

72% 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

web.cmp.usercentrics.eu takes 214ms 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

81% of c.tadst.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

56% of c.amazon-adsystem.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 web.cmp.usercentrics.eu'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

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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