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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
75
GRADE
C
FIX
5
REVIEW
2
PASS
6
INFO
2

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

Mobile Desktop
80
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
85
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
83
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.

523 ms

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

731 ms

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

459 ms

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

0.011

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

804 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.

3.33 s

Page Load Progression

714 ms
1.4 s
2.1 s
2.9 s
3.6 s
4.3 s
5.0 s
5.7 s
Checks
15
6 PASS 2 REVIEW 5 FIX
D
Page Weight Budget
Action
2.3 MB transferred, 53 requests
FIX
2.3 MB transferred, 53 requests
Info::
Page weighs 8.8 MB (2.3 MB transferred)
Warning::
JavaScript is 1.6 MB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 1.6 MB
Info::
53 HTTP requests
Info::
Estimated 0.48 g CO2 per page load
2.3 MB / 2.4 MB budget
2.3 MB transferred
53 requests
0.48 g CO2 per page load
JavaScript 1.6 MiB 71%
Images 413.6 KiB 18%
HTML 158.9 KiB 7%
Fonts 107.0 KiB 5%
Other 4.7 KiB 0%
Other 2.0 KiB 0%
Other 1010 B 0%
Other 564 B 0%
0 2.4 MB 4.9 MB
Approaching limit

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

D
JS Execution Cost
Action
2461ms total JS execution
FIX
2461ms total JS execution
Warning::
https://rss.com/_nuxt/e5c3d72.js: 919ms CPU time
Warning::
https://rss.com/: 731ms CPU time
Info::
https://ob.calderovian.com/i/945d535c7c89c696244fd...: 231ms CPU time
Info::
Unattributable: 203ms CPU time
Info::
https://www.googletagmanager.com/gtag/js?id=G-H8T8...: 149ms CPU time
Info::
Third-party scripts: 713ms (29% of total)

Main Thread Breakdown

Script Evaluation 47% Other 18% Script Parsing & Compilation 13% Style & Layout 12% Rendering 6% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://rss.com/_nuxt/e5c3d72.js919ms679ms165ms1st
https://rss.com/731ms10ms15ms1st
https://ob.calderovian.com/i/945d535c7c89c696244fd56b63c598e3.js231ms198ms4ms3rd
Unattributable203ms7ms0ms3rd
https://www.googletagmanager.com/gtag/js?id=G-H8T828D0JG&cx=c&gtm=4e64k0149ms125ms23ms3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MJMDPRR&gtm_auth=eG1slwLxXT4Ot0vqraBpnw&gtm_preview=env-62&gtm_cookies_win=x130ms104ms20ms3rd
https://rss.com/_nuxt/5c2299f.js97ms8ms83ms1st
F
JS Bundles
Action
18 scripts, 545 KB unused
FIX
18 scripts, 545 KB unused
Warning::
https://rss.com/_nuxt/5c2299f.js: 344 KB unused (71%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtag/js?id=G-H8T8...: 66 KB unused (38%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.googletagmanager.com/gtm.js?id=GTM-MJM...: 65 KB unused (43%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://rss.com/_nuxt/e5c3d72.js: 39 KB unused (6%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://rss.com/_nuxt/7b8f4c9.js: 32 KB unused (41%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 545 KB
545 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://rss.com/_nuxt/5c2299f.js487 KB344 KB (71%)✓1st
https://www.googletagmanager.com/gtag/js?id=G-H8T828D0JG&cx=c&gtm=4e64k0173 KB66 KB (38%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-MJMDPRR&gtm_auth=eG1slwLxXT4Ot0vqraBpnw&gtm_preview=env-62&gtm_cookies_win=x152 KB65 KB (43%)✓3rd
https://rss.com/_nuxt/e5c3d72.js631 KB39 KB (6%)✓1st
https://rss.com/_nuxt/7b8f4c9.js79 KB32 KB (41%)✓1st
https://ob.calderovian.com/i/945d535c7c89c696244fd56b63c598e3.js45 KB—✓3rd
https://rss.com/_nuxt/2df93db.js9 KB—✓1st
https://rss.com/_nuxt/cca562e.js23 KB—✓1st
https://rss.com/_nuxt/7bb1630.js2 KB—✓1st
https://cdn.mxpnl.com/libs/mixpanel-2-latest.min.js32 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

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

D
Page Weight Inventory
Action
53 resources · 2.3 MB · 545 KB savings available
FIX
53 resources · 2.3 MB · 545 KB savings available
Warning::
Page weight 1.3 MB over 1MB target
Got: 2.3 MB Expected: ≤ 1 MB
Info::
~545 KB of savings available
Info::
31 third-party resources (23% of weight)
Info::
2 resources over 200KB
53 resources · 2.3 MiB · 31 third-party 1.3 MiB over 1MB target
JavaScript 71% · 1.6 MiB
Image 18% · 418.3 KiB
Document 7% · 158.9 KiB
Font 5% · 107.0 KiB
Other 0% · 3.6 KiB

~545.3 KiB of savings available

Remove unused JavaScript: 545.3 KiB
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.
Info::
ETag present — enables conditional (304) responses

No Cache-Control header

Adding a Cache-Control header can significantly improve repeat-visit performance.

C
Image Optimization
Action
18 images, 0 KB saveable
REVIEW
18 images, 0 KB saveable
Warning::
https://rss.com/images/landing/monetization/apple-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/landing/monetization/value-... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/icons/planet.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/dashboard.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/landing/monetization/paid.p... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/landing/easy-to-use.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/landing/distribution.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/landing/monetization/donati... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/landing/monetization/affili... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/svg/podcast-standards-cert.svg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/landing/analytics.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/features/common/move_your_p... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
https://rss.com/images/iab-tech-lab.png is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
18 images 414 KB
0 oversized -0 KB
18 legacy format
13 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

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

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
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

A
Third-Party Impact
23% third-party, 0 ms blocking
PASS
23% third-party, 0 ms blocking
Info::
Third-party code accounts for 23% of page weight (551.8 KiB of 2.3 MiB)
Info::
Third-party blocking time is low (0 ms)
77%
23%
First-party Third-party
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 (107 KB)
PASS
5 fonts (107 KB)
Info::
5 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

5

107 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 523 ms LCP 731 mshttps://assets.rss.com/fonts/raleway/raleway-v27-latin-700.woff2raleway-v27-latin-700.w... https://assets.rss.com/fonts/raleway/raleway-v27-latin-700.woff2 — 21.5 KiB — 328 ms — font-display: swaphttps://assets.rss.com/fonts/raleway/raleway-v27-latin-600.woff2raleway-v27-latin-600.w... https://assets.rss.com/fonts/raleway/raleway-v27-latin-600.woff2 — 21.6 KiB — 326 ms — font-display: swaphttps://assets.rss.com/fonts/raleway/raleway-v27-latin-700italic.woff2raleway-v27-latin-700it... https://assets.rss.com/fonts/raleway/raleway-v27-latin-700italic.woff2 — 21.7 KiB — 315 ms — font-display: swaphttps://assets.rss.com/fonts/raleway/raleway-v27-latin-regular.woff2raleway-v27-latin-regul... https://assets.rss.com/fonts/raleway/raleway-v27-latin-regular.woff2 — 21.3 KiB — 326 ms — font-display: swaphttps://assets.rss.com/fonts/raleway/raleway-v27-latin-500.woff2raleway-v27-latin-500.w... https://assets.rss.com/fonts/raleway/raleway-v27-latin-500.woff2 — 20.9 KiB — 323 ms — font-display: swap
raleway-v27-latin-700.w... woff2 swap
Size 21 KB
Load time 328 ms
Start 280 ms
Risk FOUT — text flashes from fallback to web font
raleway-v27-latin-600.w... woff2 swap
Size 22 KB
Load time 326 ms
Start 281 ms
Risk FOUT — text flashes from fallback to web font
raleway-v27-latin-700it... woff2 swap
Size 22 KB
Load time 315 ms
Start 281 ms
Risk FOUT — text flashes from fallback to web font
raleway-v27-latin-regul... woff2 swap
Size 21 KB
Load time 326 ms
Start 281 ms
Risk FOUT — text flashes from fallback to web font
raleway-v27-latin-500.w... woff2 swap
Size 21 KB
Load time 323 ms
Start 282 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
Network Waterfall
53 requests over 5375ms
INFO
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 523 ms LCP 731 mshttps://rss.com// https://rss.com/ — 200 — 158.9 KiB — 27 ms — h2https://rss.com/_nuxt/7bb1630.js/_nuxt/7bb1630.js https://rss.com/_nuxt/7bb1630.js — 200 — 2.0 KiB — 17 ms — h2https://rss.com/_nuxt/7b8f4c9.js/_nuxt/7b8f4c9.js https://rss.com/_nuxt/7b8f4c9.js — 200 — 78.8 KiB — 21 ms — h2https://rss.com/_nuxt/5c2299f.js/_nuxt/5c2299f.js https://rss.com/_nuxt/5c2299f.js — 200 — 486.6 KiB — 157 ms — h2https://rss.com/_nuxt/e5c3d72.js/_nuxt/e5c3d72.js https://rss.com/_nuxt/e5c3d72.js — 200 — 630.9 KiB — 160 ms — h2https://rss.com/_nuxt/cca562e.js/_nuxt/cca562e.js https://rss.com/_nuxt/cca562e.js — 200 — 23.3 KiB — 44 ms — h2https://rss.com/_nuxt/2df93db.js/_nuxt/2df93db.js https://rss.com/_nuxt/2df93db.js — 200 — 8.6 KiB — 86 ms — h2https://rss.com/images/dashboard.png/images/dashboard.png https://rss.com/images/dashboard.png — 200 — 74.3 KiB — 26 ms — h2https://rss.com/images/landing/easy-to-use.png/images/landing/easy-to-use.png https://rss.com/images/landing/easy-to-use.png — 200 — 54.3 KiB — 48 ms — h2https://rss.com/images/landing/distribution.png/images/landing/distribution.png https://rss.com/images/landing/distribution.png — 200 — 49.5 KiB — 75 ms — h2https://rss.com/images/landing/monetization/paid.png/images/landing/monetization/paid.p... https://rss.com/images/landing/monetization/paid.png — 200 — 25.1 KiB — 26 ms — h2https://rss.com/images/landing/monetization/apple-podcasts.png/images/landing/monetization/apple-... https://rss.com/images/landing/monetization/apple-podcasts.png — 200 — 54.6 KiB — 32 ms — h2https://rss.com/images/landing/monetization/donation-button.png/images/landing/monetization/donati... https://rss.com/images/landing/monetization/donation-button.png — 200 — 30.1 KiB — 43 ms — h2https://rss.com/images/landing/monetization/affiliate.png/images/landing/monetization/affili... https://rss.com/images/landing/monetization/affiliate.png — 200 — 38.8 KiB — 67 ms — h2https://rss.com/images/landing/monetization/value-4-value.png/images/landing/monetization/value-... https://rss.com/images/landing/monetization/value-4-value.png — 200 — 21.6 KiB — 34 ms — h2https://rss.com/images/landing/analytics.png/images/landing/analytics.png https://rss.com/images/landing/analytics.png — 200 — 28.1 KiB — 65 ms — h2https://rss.com/images/features/common/move_your_podcast.png/images/features/common/move_your_p... https://rss.com/images/features/common/move_your_podcast.png — 200 — 27.7 KiB — 45 ms — h2https://rss.com/svg/podcast-standards-cert.svg/svg/podcast-standards-cert.svg https://rss.com/svg/podcast-standards-cert.svg — 200 — 3.9 KiB — 59 ms — h2https://rss.com/images/iab-tech-lab.png/images/iab-tech-lab.png https://rss.com/images/iab-tech-lab.png — 200 — 3.6 KiB — 51 ms — h2https://rss.com/images/icons/planet.png/images/icons/planet.png https://rss.com/images/icons/planet.png — 200 — 1.2 KiB — 54 ms — h2https://assets.rss.com/fonts/raleway/raleway-v27-latin-700.woff2assets.rss.com/fonts/raleway/ralewa... https://assets.rss.com/fonts/raleway/raleway-v27-latin-700.woff2 — 200 — 21.5 KiB — 328 ms — h2https://assets.rss.com/fonts/raleway/raleway-v27-latin-600.woff2assets.rss.com/fonts/raleway/ralewa... https://assets.rss.com/fonts/raleway/raleway-v27-latin-600.woff2 — 200 — 21.6 KiB — 326 ms — h2https://assets.rss.com/fonts/raleway/raleway-v27-latin-700italic.woff2assets.rss.com/fonts/raleway/ralewa... https://assets.rss.com/fonts/raleway/raleway-v27-latin-700italic.woff2 — 200 — 21.7 KiB — 315 ms — h2https://assets.rss.com/fonts/raleway/raleway-v27-latin-regular.woff2assets.rss.com/fonts/raleway/ralewa... https://assets.rss.com/fonts/raleway/raleway-v27-latin-regular.woff2 — 200 — 21.3 KiB — 326 ms — h2https://assets.rss.com/fonts/raleway/raleway-v27-latin-500.woff2assets.rss.com/fonts/raleway/ralewa... https://assets.rss.com/fonts/raleway/raleway-v27-latin-500.woff2 — 200 — 20.9 KiB — 323 ms — h2https://www.googletagmanager.com/gtm.js?id=GTM-MJMDPRR&gtm_auth=eG1slwLxXT4Ot0vqraBpnw&gtm_preview=env-62&gtm_cookies_win=xwww.googletagmanager.com/gtm.js?id=... https://www.googletagmanager.com/gtm.js?id=GTM-MJMDPRR&gtm_auth=eG1slwLxXT4Ot0vqraBpnw&gtm_preview=env-62&gtm_cookies_win=x — 200 — 151.6 KiB — 33 ms — h2https://www.googletagmanager.com/gtag/js?id=G-H8T828D0JG&cx=c&gtm=4e64k0www.googletagmanager.com/gtag/js?id... https://www.googletagmanager.com/gtag/js?id=G-H8T828D0JG&cx=c&gtm=4e64k0 — 200 — 173.5 KiB — 57 ms — h2https://ob.calderovian.com/i/945d535c7c89c696244fd56b63c598e3.jsob.calderovian.com/i/945d535c7c89c6... https://ob.calderovian.com/i/945d535c7c89c696244fd56b63c598e3.js — 200 — 44.7 KiB — 69 ms — h2https://cdn.mxpnl.com/libs/mixpanel-2-latest.min.jscdn.mxpnl.com/libs/mixpanel-2-lates... https://cdn.mxpnl.com/libs/mixpanel-2-latest.min.js — 200 — 31.7 KiB — 61 ms — h2https://r.wdfl.co/rw.jsr.wdfl.co/rw.js https://r.wdfl.co/rw.js — 200 — 5.4 KiB — 68 ms — h2
0 ms 1.0 s 2.0 s 3.0 s 4.0 s 5.0 s FCP 523 ms LCP 731 mshttps://rss.com// https://rss.com/ — 200 — 158.9 KiB — 27 ms — h2https://rss.com/_nuxt/7bb1630.js/_nuxt/7bb1630.js https://rss.com/_nuxt/7bb1630.js — 200 — 2.0 KiB — 17 ms — h2https://rss.com/_nuxt/7b8f4c9.js/_nuxt/7b8f4c9.js https://rss.com/_nuxt/7b8f4c9.js — 200 — 78.8 KiB — 21 ms — h2https://rss.com/_nuxt/5c2299f.js/_nuxt/5c2299f.js https://rss.com/_nuxt/5c2299f.js — 200 — 486.6 KiB — 157 ms — h2https://rss.com/_nuxt/e5c3d72.js/_nuxt/e5c3d72.js https://rss.com/_nuxt/e5c3d72.js — 200 — 630.9 KiB — 160 ms — h2https://rss.com/_nuxt/cca562e.js/_nuxt/cca562e.js https://rss.com/_nuxt/cca562e.js — 200 — 23.3 KiB — 44 ms — h2https://rss.com/_nuxt/2df93db.js/_nuxt/2df93db.js https://rss.com/_nuxt/2df93db.js — 200 — 8.6 KiB — 86 ms — h2https://rss.com/images/dashboard.png/images/dashboard.png https://rss.com/images/dashboard.png — 200 — 74.3 KiB — 26 ms — h2https://rss.com/images/landing/easy-to-use.png/images/landing/easy-to-use.png https://rss.com/images/landing/easy-to-use.png — 200 — 54.3 KiB — 48 ms — h2https://rss.com/images/landing/distribution.png/images/landing/distribution.png https://rss.com/images/landing/distribution.png — 200 — 49.5 KiB — 75 ms — h2https://rss.com/images/landing/monetization/paid.png/images/landing/monetization/paid.p... https://rss.com/images/landing/monetization/paid.png — 200 — 25.1 KiB — 26 ms — h2https://rss.com/images/landing/monetization/apple-podcasts.png/images/landing/monetization/apple-... https://rss.com/images/landing/monetization/apple-podcasts.png — 200 — 54.6 KiB — 32 ms — h2https://rss.com/images/landing/monetization/donation-button.png/images/landing/monetization/donati... https://rss.com/images/landing/monetization/donation-button.png — 200 — 30.1 KiB — 43 ms — h2https://rss.com/images/landing/monetization/affiliate.png/images/landing/monetization/affili... https://rss.com/images/landing/monetization/affiliate.png — 200 — 38.8 KiB — 67 ms — 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— 200 — 39 B — 111 ms — h2
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
29% of JavaScript execution is third-party
First-party Third-party 713ms · 370KB · $9/mo
ob.calderovian.com
Other
Costly
Execution 231ms
Transfer 45 KB
Monthly Cost $3/mo
Unattributable
Other
Costly
Execution 203ms
Transfer 0 KB
Monthly Cost $3/mo
Google Tag Manager
Tag Manager
Optional
Execution 149ms
Transfer 173 KB
Unused 38%
Monthly Cost $2/mo
Google Tag Manager
Tag Manager
Optional
Execution 130ms
Transfer 152 KB
Unused 43%
Monthly Cost $2/mo

These scripts may cost more than they're worth

  • ob.calderovian.com adds 231ms and costs ~$3/month
  • Unattributable adds 203ms and costs ~$3/month

ob.calderovian.com takes 231ms 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

Unattributable takes 203ms 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

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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