Performance
· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
422 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.76 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
612 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.141
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
2.18 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.
6.80 s
Page Load Progression
972 ms
1.9 s
2.9 s 3.9 s 4.9 s
5.8 s 6.8 s
7.8 sFPage Weight BudgetAction5.1 MB transferred, 275 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.
Source: web.dev
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.
Source: web.dev
DThird-Party ImpactAction93% third-party, 0 ms blockingFIX
FJS Execution CostAction5104ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://iol.co.za/ | 1111ms | 2ms | 0ms | 1st |
| https://iol.co.za/_next/static/chunks/9769-60d265819e1c4e06.js | 671ms | 462ms | 6ms | 1st |
| Unattributable | 540ms | 40ms | 0ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 441ms | 359ms | 18ms | 3rd |
| https://iol.co.za/cdn-cgi/scripts/7d0fa10a/cloudflare-static/rocket-loader.min.js | 290ms | 139ms | 21ms | 1st |
| https://cdn.jsdelivr.net/npm/videojs-contrib-ads@6.7.0/dist/videojs.ads.min.js | 222ms | 183ms | 1ms | 3rd |
| https://fundingchoicesmessages.google.com/i/106213651?ers=3 | 211ms | 203ms | 6ms | 3rd |
| https://static.vic-m.co/ads/vicinity-head-tag-v1.js?zoneId=2280 | 180ms | 99ms | 2ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DMDCQ8ERXJ&cx=c>m=4e64h1 | 167ms | 134ms | 16ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TSH7V7 | 161ms | 129ms | 17ms | 3rd |
Showing top 10 of 22 scripts
FJS BundlesAction89 scripts, 921 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://cdn.membrana.media/iol/ym.js | 172 KB | 120 KB (70%) | ✓ | 3rd |
| https://cdn.jsdelivr.net/npm/video.js@7.10.2/dist/video.min.js | 145 KB | 105 KB (73%) | ✓ | 3rd |
| https://imasdk.googleapis.com/js/sdkloader/ima3.js | 148 KB | 97 KB (66%) | ✓ | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604160201/pubads_impl.js | 188 KB | 86 KB (46%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-TSH7V7 | 159 KB | 64 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-RD4FP31KQR&l=ymDataLayer | 157 KB | 64 KB (41%) | ✓ | 3rd |
| https://analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwOQ.js | 121 KB | 63 KB (53%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=DC-13739633&cx=c>m=4e64h1 | 132 KB | 58 KB (44%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DMDCQ8ERXJ&cx=c>m=4e64h1 | 177 KB | 54 KB (30%) | ✓ | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 91 KB | 53 KB (58%) | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction275 resources · 5.1 MB · 921 KB savings availableFIX
~921.4 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 275 resources | 5.1 MiB | ||||||
DHTTP CachingActionno-store (uncacheable)FIX
private, no-cache, no-store, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| private | — | Only browser cache, not CDN/proxy |
| no-cache | — | Cache but always revalidate first |
| no-store | — | Never cache this response |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
CImage OptimizationAction84 images, 0 KB saveableREVIEW
Set explicit width and height to prevent CLS.
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.
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.
Image without explicit width/height — browser can't reserve space; CLS jumps when image loads.
Source: web.dev / Core Web Vitals
A+Text CompressionAll text resources are compressedPASS
A+Font Loading4 fonts (28 KB)PASS
Web fonts
4
28 KB total
Render-blocking
0
of 4
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Convert to woff2 for ~30% smaller file size
Optimization checklist
- Preload critical fonts (priority=high)
- Use woff2 format for all fonts
- Set font-display to swap, optional, or fallback
- Subset large fonts (≤100 KB each)
Fixing the unchecked items could save ~1 KB and ~2 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall275 requests over 7566msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 540ms | 0 KB | — | R170/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 441ms | 188 KB | 46% | R139/mo | Costly |
jsDelivr cdn.jsdelivr.net | CDN | 222ms | 8 KB | — | R70/mo | Costly |
fundingchoicesmessages.google.com fundingchoicesmessages.google.com | Other | 211ms | 70 KB | 53% | R66/mo | Costly |
static.vic-m.co static.vic-m.co | Other | 180ms | 16 KB | — | R57/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 167ms | 177 KB | 30% | R53/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 161ms | 159 KB | 41% | R51/mo | Costly |
Microsoft Clarity scripts.clarity.ms | Session Replay | 158ms | 26 KB | — | R50/mo | Optional |
analytics.tiktok.com analytics.tiktok.com | Other | 150ms | 121 KB | 53% | R47/mo | Optional |
cdn.membrana.media cdn.membrana.media | Other | 134ms | 172 KB | 70% | R42/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 103ms | 157 KB | 41% | R32/mo | Optional |
jsDelivr cdn.jsdelivr.net | CDN | 93ms | 145 KB | 73% | R29/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 91ms | 97 KB | 27% | R29/mo | Optional |
cdn.membrana.media cdn.membrana.media | Other | 88ms | 84 KB | 50% | R28/mo | Optional |
Google Tag Manager www.googletagmanager.com | Tag Manager | 64ms | 132 KB | 44% | R20/mo | Optional |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 60ms | 91 KB | 58% | R19/mo | Optional |
cdn.taboola.com cdn.taboola.com | Other | 58ms | 12 KB | — | R18/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 55ms | 45 KB | — | R17/mo | Optional |
Facebook Pixel connect.facebook.net | Advertising | 54ms | 97 KB | 34% | R17/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 540ms and costs ~R170/month
- securepubads.g.doubleclick.net adds 441ms and costs ~R139/month
- jsDelivr adds 222ms and costs ~R70/month
- fundingchoicesmessages.google.com adds 211ms and costs ~R66/month
- static.vic-m.co adds 180ms and costs ~R57/month
- Google Tag Manager adds 167ms and costs ~R53/month
- Google Tag Manager adds 161ms and costs ~R51/month
59% of JavaScript execution time comes from third-party scripts.
Third-party scripts (analytics, ads, social, A/B testing) often dominate execution time — every one is a perf-and-privacy tax.
Learn more ▾ ▴
Each third-party script is a black box: you don't control when it loads, what it executes, or how much it grows. They often account for a major share of total blocking time on average sites (HTTP Archive's Web Almanac documents the trend). Audit which ones you actually need, defer the rest, and use facade patterns (lite-youtube, lite-vimeo) for embedded media.
Source: web.dev / HTTP Archive Web Almanac
Unattributable takes 540ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
securepubads.g.doubleclick.net takes 441ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
jsDelivr takes 222ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
fundingchoicesmessages.google.com takes 211ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
53% of fundingchoicesmessages.google.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
static.vic-m.co takes 180ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 167ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 161ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
53% of analytics.tiktok.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
70% of cdn.membrana.media's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
73% of jsDelivr's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
58% of c.amazon-adsystem.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev