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Performance

· 28 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
84
GRADE
B
FIX
4
REVIEW
4
PASS
16
INFO
4

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

Mobile Desktop
53
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
73
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
92
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
73
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.

6.21 s

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

10.08 s

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

224 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.

8.15 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.

11.98 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
28
16 PASS 4 REVIEW 4 FIX
F
Page Weight Budget
Action
4.6 MB transferred, 59 requests
FIX
4.6 MB transferred, 59 requests
Critical::
Page weighs 6.3 MB (4.6 MB transferred)
Warning::
Images are 3.9 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 3.9 MB
Info::
Fonts are 223 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 223 KB
Info::
59 HTTP requests
Info::
Estimated 0.97 g CO2 per page load
4.6 MB / 2.4 MB budget
4.6 MB transferred
59 requests
0.97 g CO2 per page load
Images 3.9 MiB 84%
JavaScript 405.1 KiB 9%
Fonts 223.3 KiB 5%
CSS 78.4 KiB 2%
HTML 61.7 KiB 1%
Other 3.4 KiB 0%
Other 546 B 0%
Other 463 B 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

Subset fonts to include only used characters, or switch to system font stacks.

Why this matters

Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).

Source: web.dev font loading

D
JS Execution Cost
Action
3018ms total JS execution
FIX
3018ms total JS execution
Warning::
https://www.rss.org/cdn-cgi/scripts/7d0fa10a/cloud...: 903ms CPU time
Warning::
Unattributable: 657ms CPU time
Warning::
https://www.rss.org/: 628ms CPU time
Warning::
https://www.googletagmanager.com/gtag/js?id=G-TZV3...: 408ms CPU time
Warning::
https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7....: 341ms CPU time
Info::
Third-party scripts: 830ms (27% of total)

Main Thread Breakdown

Script Evaluation 40% Other 28% Style & Layout 16% Script Parsing & Compilation 6% Parse HTML & CSS 6%
ScriptTotalScriptingParse/CompileParty
https://www.rss.org/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js903ms714ms21ms1st
Unattributable657ms10ms0ms1st
https://www.rss.org/628ms37ms1ms1st
https://www.googletagmanager.com/gtag/js?id=G-TZV3V21C2E408ms321ms74ms3rd
https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.1/jquery.min.js341ms121ms12ms3rd
https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.14.1/jquery-ui.min.js81ms46ms34ms3rd
D
JS Bundles
Action
16 scripts, 160 KB unused
FIX
16 scripts, 160 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-TZV3...: 74 KB unused (42%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1....: 49 KB unused (89%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdnjs.cloudflare.com/ajax/libs/angular.js/...: 37 KB unused (70%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel...: unminified — 7 KB could be saved
Info::
Total unused JavaScript: 160 KB
160 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.googletagmanager.com/gtag/js?id=G-TZV3V21C2E174 KB74 KB (42%)✓3rd
https://cdnjs.cloudflare.com/ajax/libs/jqueryui/1.14.1/jquery-ui.min.js56 KB49 KB (89%)✓3rd
https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.8.3/angular.min.js54 KB37 KB (70%)✓3rd
https://www.rss.org/js/genericnewslettersubscribe.js2 KB—✓1st
https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/owl.carousel.js17 KB—✗3rd
https://www.rss.org/js/joinrss-svg-script.js2 KB—✓1st
https://sangraha.net/s90/js/common.js1 KB—✓3rd
https://www.rss.org/js/embed.js6 KB—✗1st
https://www.rss.org/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js4 KB—✓1st
https://cdnjs.cloudflare.com/ajax/libs/blueimp-gallery/2.33.0/js/blueimp-gallery.js9 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

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::
Last-Modified header present

No Cache-Control header

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

B
Image Optimization
11 images, 0 KB saveable
REVIEW
11 images, 0 KB saveable
Warning::
https://www.rss.org//Encyc/2019/7/23/rss-logo.jpg is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
11 images 3.9 MB
0 oversized -0 KB
11 legacy format
1 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

B
Main HTML Cache-Control
No Cache-Control header on main HTML response
REVIEW
No Cache-Control header on main HTML response
Info::
Main HTML response has no Cache-Control header
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.
C
Page Weight Inventory
Action
59 resources · 4.6 MB · 160 KB savings available
REVIEW
59 resources · 4.6 MB · 160 KB savings available
Warning::
Page weight 4.6 MB exceeds 1 MB target by 3.6 MB
Got: 4.6 MB Expected: ≤ 1 MB
Info::
~160 KB of savings available
Info::
39 third-party resources (15% of weight)
Info::
5 resources over 200KB
59 resources · 4.6 MiB · 39 third-party 3.6 MiB over 1MB target
Image 84% · 3.9 MiB
JavaScript 9% · 405.1 KiB
Font 5% · 223.3 KiB
CSS 2% · 78.4 KiB
Document 1% · 61.8 KiB
Other 0% · 1009 B

~159.6 KiB of savings available

Remove unused JavaScript: 159.6 KiB
B
CSS Performance Depth
2 CSS depth issue(s) detected
REVIEW
2 CSS depth issue(s) detected
Warning::
7 render-blocking stylesheet(s) -- recommended: <=3
Each `<link rel="stylesheet">` without a non-blocking `media` attribute holds up the first paint. Browsers download all of them before painting any content. Consolidate into 1-2 critical-path stylesheets; defer non-critical CSS via `<link rel="stylesheet" media="print" onload="this.media='all'">` or via the loadCSS pattern; inline above-the-fold CSS in `<style>` to short-circuit the request entirely.
Info::
20 `@import` rule(s) in inline `<style>` blocks -- chains an extra round-trip
Each `@import` in CSS forces a serial dependency: the parent stylesheet must download and parse before the browser even knows which URL to fetch next. This used to be catastrophic on HTTP/1.1; HTTP/2 and HTTP/3 multiplexing make it less painful but still strictly worse than declaring `<link rel="stylesheet">` siblings. Replace `@import url(...)` with `<link rel="stylesheet" href="...">` in HTML so the browser discovers and fetches in parallel.
A+
Third-Party Impact
15% third-party, 0 ms blocking
PASS
15% third-party, 0 ms blocking
Info::
Third-party code accounts for 15% of page weight (705.1 KiB of 4.6 MiB)
Info::
Third-party blocking time is low (0 ms)
85%
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
6 fonts (223 KB)
PASS
6 fonts (223 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

6

223 KB total

Render-blocking

0

of 6

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 6.2 s LCP 10.1 shttps://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0fontawesome-webfont.woff2 https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/fonts/fontawesome-webfont.woff2?v=4.7.0 — 76.0 KiB — 30 ms — font-display: swaphttps://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2memvYaGs126MiZpBA-UvWbX... https://fonts.gstatic.com/s/opensans/v44/memvYaGs126MiZpBA-UvWbX2vVnXBbObj2OVTS-mu0SC55I.woff2 — 42.0 KiB — 28 ms — font-display: swaphttps://fonts.gstatic.com/s/raleway/v37/1Ptug8zYS_SKggPNyC0IT4ttDfA.woff21Ptug8zYS_SKggPNyC0IT4t... https://fonts.gstatic.com/s/raleway/v37/1Ptug8zYS_SKggPNyC0IT4ttDfA.woff2 — 42.1 KiB — 28 ms — font-display: swaphttps://fonts.gstatic.com/s/ubuntu/v21/4iCs6KVjbNBYlgoKfw72nU6AFw.woff24iCs6KVjbNBYlgoKfw72nU6... https://fonts.gstatic.com/s/ubuntu/v21/4iCs6KVjbNBYlgoKfw72nU6AFw.woff2 — 13.8 KiB — 26 ms — font-display: swaphttps://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2JTUSjIg1_i6t8kCHKm459Wl... https://fonts.gstatic.com/s/montserrat/v31/JTUSjIg1_i6t8kCHKm459WlhyyTh89Y.woff2 — 34.7 KiB — 27 ms — font-display: swaphttps://fonts.gstatic.com/s/ubuntu/v21/4iCv6KVjbNBYlgoCxCvjsGyNPYZvgw.woff24iCv6KVjbNBYlgoCxCvjsGy... https://fonts.gstatic.com/s/ubuntu/v21/4iCv6KVjbNBYlgoCxCvjsGyNPYZvgw.woff2 — 14.6 KiB — 6 ms — font-display: swap
fontawesome-webfont.woff2 unknown swap
Size 76 KB
Load time 30 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 42 KB
Load time 28 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
1Ptug8zYS_SKggPNyC0IT4t... woff2 swap
Size 42 KB
Load time 28 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
4iCs6KVjbNBYlgoKfw72nU6... woff2 swap
Size 14 KB
Load time 26 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
JTUSjIg1_i6t8kCHKm459Wl... woff2 swap
Size 35 KB
Load time 27 ms
Start 1.0 s
Risk FOUT — text flashes from fallback to web font
4iCv6KVjbNBYlgoCxCvjsGy... woff2 swap
Size 15 KB
Load time 6 ms
Start 1.9 s
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)

Fixing the unchecked items could save ~23 KB and ~46 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.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
No render-blocking resources detected
A
Resource Hints
4 hints, 0 missing preconnects
PASS
4 hints, 0 missing preconnects
Info::
2 dns-prefetch redundant with preconnect on same origin
preconnect already does the DNS lookup; adding dns-prefetch to the same origin is at best a no-op. Sample: https://fonts.googleapis.com, https://www.google-analytics.com. Remove the redundant dns-prefetch entries.
Info::
2 URL(s) appear in multiple hints
The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: //fonts.googleapis.com/ (dns-prefetch+preconnect), //www.google-analytics.com (dns-prefetch+preconnect).
Info::
Page uses 4 resource hint(s)

Current Resource Hints

preconnect
2
preload
—
dns-prefetch
2
prefetch
—

4 resource hints configured

preconnect already does the DNS lookup; adding dns-prefetch to the same origin is at best a no-op. Sample: https://fonts.googleapis.com, https://www.google-analytics.com. Remove the redundant dns-prefetch entries.

Why this matters

Performance issues directly impact user engagement and conversion rates.

The same href shouldn't appear in multiple hint rels -- one wins, the others are wasted markup and may confuse cache behavior. Sample: //fonts.googleapis.com/ (dns-prefetch+preconnect), //www.google-analytics.com (dns-prefetch+preconnect).

Why this matters

Performance issues directly impact user engagement and conversion rates.

A+
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
PASS
HTTP/3 advertised via Alt-Svc
Info::
HTTP/3 (QUIC) is supported
First-load mobile users on cellular networks see meaningful latency improvements with HTTP/3. The QUIC transport collapses TLS + TCP handshakes into one and recovers faster from packet loss.
A+
Document Compression
Document response uses brotli
PASS
Document response uses brotli
Info::
Main HTML response uses brotli (Content-Encoding: br)
Brotli is the best text-compression algorithm for general use, ~20% smaller than gzip on average (40% on smaller files). Modern browsers all support it.
A+
Asset Compression
All 1 asset host use brotli
PASS
All 1 asset host use brotli
Info::
cdnjs.cloudflare.com serves assets with brotli (assets: 16)
Got: cdnjs.cloudflare.com (text/css)
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-Timing Observability
3 Server-Timing entries advertised
PASS
3 Server-Timing entries advertised
Info::
Server-Timing header advertises 3 timing entries
A+
Server Response Intelligence
2 server-response signal(s) detected
PASS
2 server-response signal(s) detected
Info::
`Vary` header declared: Accept-Encoding
The page declares a `Vary` header, telling downstream caches which request headers the response varies on. Critical for content-negotiated responses (compression, language, cookies, device class).
Info::
`Last-Modified` present -- timestamp-based conditional GET supported
Consider also setting `ETag` for stronger revalidation -- ETags are content hashes that don't suffer from clock-skew or DST issues. Last-Modified alone is functional for conditional GETs and not a bug.
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
A
JavaScript Blocking
1 JS blocking issue(s) detected
PASS
1 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.
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
59 requests over 3708ms
INFO
0 ms 2.0 s 4.0 s 6.0 s 8.0 s 10.0 s FCP 6.2 s LCP 10.1 shttps://www.rss.org// https://www.rss.org/ — 200 — 61.7 KiB — 464 ms — h3https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.8/css/bootstrap.min.csscdnjs.cloudflare.com/ajax/libs/boot... https://cdnjs.cloudflare.com/ajax/libs/bootstrap/5.3.8/css/bootstrap.min.css — 200 — 23.1 KiB — 40 ms — h3https://www.rss.org/css/2205.css?id=1159072347/css/2205.css?id=1159072347 https://www.rss.org/css/2205.css?id=1159072347 — 200 — 1.3 KiB — 447 ms — h3https://fonts.googleapis.com/css?family=Montserrat:300,400,600,700fonts.googleapis.com/css?family=Mon... https://fonts.googleapis.com/css?family=Montserrat:300,400,600,700 — 200 — 721 B — 128 ms — h2https://fonts.googleapis.com/css?family=Open+Sans:400,600,700fonts.googleapis.com/css?family=Ope... https://fonts.googleapis.com/css?family=Open+Sans:400,600,700 — 200 — 1.8 KiB — 123 ms — h2https://fonts.googleapis.com/css?family=Raleway:400,600,700fonts.googleapis.com/css?family=Ral... https://fonts.googleapis.com/css?family=Raleway:400,600,700 — 200 — 685 B — 185 ms — h2https://fonts.googleapis.com/css?family=Ubuntu:400,600,700fonts.googleapis.com/css?family=Ubu... https://fonts.googleapis.com/css?family=Ubuntu:400,600,700 — 200 — 702 B — 226 ms — h2https://fonts.googleapis.com/css?family=Oswaldfonts.googleapis.com/css?family=Osw... https://fonts.googleapis.com/css?family=Oswald — 200 — 631 B — 133 ms — h2https://fonts.googleapis.com/css?family=Karma|Mukta|Noto+Sansfonts.googleapis.com/css?family=Kar... https://fonts.googleapis.com/css?family=Karma|Mukta|Noto+Sans — 200 — 925 B — 131 ms — h2https://fonts.googleapis.com/css?family=Julius+Sans+One|Pacifico|Lobsterfonts.googleapis.com/css?family=Jul... https://fonts.googleapis.com/css?family=Julius+Sans+One|Pacifico|Lobster — 200 — 792 B — 134 ms — h2https://fonts.googleapis.com/css?family=Cinzel|Josefin+Sans|Latofonts.googleapis.com/css?family=Cin... https://fonts.googleapis.com/css?family=Cinzel|Josefin+Sans|Lato — 200 — 693 B — 127 ms — h2https://fonts.googleapis.com/css?family=Poppinsfonts.googleapis.com/css?family=Pop... https://fonts.googleapis.com/css?family=Poppins — 200 — 542 B — 184 ms — h2https://fonts.googleapis.com/css?family=Roboto|Roboto+Slab&display=swapfonts.googleapis.com/css?family=Rob... https://fonts.googleapis.com/css?family=Roboto|Roboto+Slab&display=swap — 200 — 1.7 KiB — 137 ms — h2https://fonts.googleapis.com/css?family=Cambay&display=swapfonts.googleapis.com/css?family=Cam... https://fonts.googleapis.com/css?family=Cambay&display=swap — 200 — 926 B — 117 ms — h2https://fonts.googleapis.com/css?family=Khand:600fonts.googleapis.com/css?family=Kha... https://fonts.googleapis.com/css?family=Khand:600 — 200 — 519 B — 126 ms — h2https://sangraha.net/s90/FontAwesome6/css/all.csssangraha.net/s90/FontAwesome6/css/a... https://sangraha.net/s90/FontAwesome6/css/all.css — 200 — 23.9 KiB — 53 ms — h3https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.csscdnjs.cloudflare.com/ajax/libs/font... https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.css — 200 — 6.4 KiB — 38 ms — h3https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.7.0/animate.csscdnjs.cloudflare.com/ajax/libs/anim... https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.7.0/animate.css — 200 — 4.3 KiB — 40 ms — h3https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.carousel.csscdnjs.cloudflare.com/ajax/libs/OwlC... https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.carousel.css — 200 — 1.7 KiB — 35 ms — h3https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.theme.default.csscdnjs.cloudflare.com/ajax/libs/OwlC... https://cdnjs.cloudflare.com/ajax/libs/OwlCarousel2/2.3.4/assets/owl.theme.default.css — 200 — 1.0 KiB — 41 ms — h3https://cdnjs.cloudflare.com/ajax/libs/blueimp-gallery/2.33.0/css/blueimp-gallery.csscdnjs.cloudflare.com/ajax/libs/blue... https://cdnjs.cloudflare.com/ajax/libs/blueimp-gallery/2.33.0/css/blueimp-gallery.css — 200 — 1.8 KiB — 43 ms — h3https://www.rss.org//Encyc/2019/7/23/rss-logo.jpg//Encyc/2019/7/23/rss-logo.jpg https://www.rss.org//Encyc/2019/7/23/rss-logo.jpg — 200 — 5.3 KiB — 448 ms — h3https://www.rss.org/Encyc/2026/9/7/Web_uk_202609070051366852.png/Encyc/2026/9/7/Web_uk_202609070051... https://www.rss.org/Encyc/2026/9/7/Web_uk_202609070051366852.png — 200 — 203.3 KiB — 1.1 s — h3https://www.rss.org/Encyc/2026/9/4/Web_I-3_202609041653142989.png/Encyc/2026/9/4/Web_I-3_20260904165... https://www.rss.org/Encyc/2026/9/4/Web_I-3_202609041653142989.png — 200 — 197.5 KiB — 1.3 s — h3https://www.rss.org/css/map.css/css/map.css https://www.rss.org/css/map.css — 200 — 4.4 KiB — 448 ms — h3https://www.rss.org/Encyc/2017/6/7/Web_2_10_31_47_hedgewar-icon_1.gif/Encyc/2017/6/7/Web_2_10_31_47_hedg... https://www.rss.org/Encyc/2017/6/7/Web_2_10_31_47_hedgewar-icon_1.gif — 200 — 4.2 KiB — 457 ms — h3https://www.rss.org/images/Web_ImageNotfound.jpg/images/Web_ImageNotfound.jpg https://www.rss.org/images/Web_ImageNotfound.jpg — 404 — 4.0 KiB — 450 ms — h3https://www.rss.org/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js/cdn-cgi/scripts/7d0fa10a/cloudflar... https://www.rss.org/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js — 200 — 4.4 KiB — 8 ms — h3https://static.cloudflareinsights.com/beacon.min.js/v31edd6df95cf4e85bb4c19e7a9bdbcba1788362987495static.cloudflareinsights.com/beaco... https://static.cloudflareinsights.com/beacon.min.js/v31edd6df95cf4e85bb4c19e7a9bdbcba1788362987495 — 200 — 10.1 KiB — 24 ms — h2https://www.rss.org/js/lazyloading.js/js/lazyloading.js https://www.rss.org/js/lazyloading.js — 200 — 3.3 KiB — 446 ms — h3
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HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
27% of JavaScript execution is third-party
First-party Third-party 830ms · 257KB · $11/mo
Google Tag Manager
Tag Manager
Costly
Execution 408ms
Transfer 174 KB
Unused 42%
Monthly Cost $5/mo
cdnjs
CDN
Costly
Execution 341ms
Transfer 27 KB
Monthly Cost $5/mo
cdnjs
CDN
Optional
Execution 81ms
Transfer 56 KB
Unused 89%
Monthly Cost $1/mo

These scripts may cost more than they're worth

  • Google Tag Manager adds 408ms and costs ~$5/month
  • cdnjs adds 341ms and costs ~$5/month

Google Tag Manager takes 408ms 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

cdnjs takes 341ms 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

89% of cdnjs'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

Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
INFO

Chrome User Experience (CrUX)

Real-user metrics from the Chrome UX Report (2026-09-04 — 2026-10-01)

LCP (p75)

2826 ms

69% good

INP (p75)

96 ms

93% good

CLS (p75)

0.000

99% good

FCP (p75)

2064 ms

TTFB (p75)

890 ms

Image Optimization
18 images, 9229 KB total, 0 KB wasted
INFO

Image Optimization Audit

Total Images

18

Total Size

9229 KB

18 missing dimensions 7 missing lazy loading
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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