Performance
· 23 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.
670 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
990 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
4 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.005
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
885 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.
1.17 s
Page Load Progression
DPage Weight BudgetAction2.1 MB transferred, 65 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
Subset fonts to include only used characters, or switch to system font stacks.
Font payload is large — subset to used glyphs only, or fall back to system fonts (zero load time).
Source: web.dev font loading
FJS BundlesAction15 scripts, 849 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/ne1iDVwClkE7nKD3uA9Vqsvl/recaptcha__en.js | 375 KB | 160 KB (43%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/ne1iDVwClkE7nKD3uA9Vqsvl/recaptcha__en.js | 0 KB | 160 KB (43%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/ne1iDVwClkE7nKD3uA9Vqsvl/recaptcha__en.js | 0 KB | 160 KB (43%) | ✓ | 3rd |
| https://www.gstatic.com/recaptcha/releases/ne1iDVwClkE7nKD3uA9Vqsvl/recaptcha__en.js | 374 KB | 160 KB (43%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=GT-NBXLK7SQ | 159 KB | 67 KB (42%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-91625057&cx=c>m=4e66a0 | 139 KB | 66 KB (48%) | ✓ | 3rd |
| https://improvingliteracy.org/wp-content/themes/bricks/assets/js/bricks.min.js?ver=1777575995 | 48 KB | 41 KB (85%) | ✓ | 1st |
| https://static.ctctcdn.com/js/signup-form-widget/current/signup-form-widget.min.js | 37 KB | 34 KB (93%) | ✓ | 3rd |
| https://improvingliteracy.org/wp-includes/js/wp-emoji-release.min.js?ver=6.9.4 | 6 KB | — | ✓ | 1st |
| https://www.google.com/recaptcha/api.js?onload=ctctOnLoadCallback&render=explicit | 1 KB | — | ✓ | 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 InventoryAction65 resources · 2.1 MB · 849 KB savings availableFIX
~848.8 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 65 resources | 2.1 MiB | ||||||
BThird-Party Impact58% third-party, 0 ms blockingREVIEW
BImage Optimization23 images, 0 KB saveableREVIEW
BJS Execution Cost748ms total JS executionREVIEW
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.gstatic.com/recaptcha/releases/ne1iDVwClkE7nKD3uA9Vqsvl/recaptcha__en.js | 352ms | 300ms | 25ms | 3rd |
| https://improvingliteracy.org/ | 182ms | 3ms | 2ms | 1st |
| Unattributable | 131ms | 2ms | 0ms | 1st |
| https://www.googletagmanager.com/gtag/js?id=GT-NBXLK7SQ | 83ms | 69ms | 13ms | 3rd |
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
BHTTP Cachingpublic, max-age=0, s-maxage=86400REVIEW
public, max-age=0, s-maxage=86400
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| max-age | 0 | Cache for 0 seconds |
| s-maxage | 86400 | CDN caches for 1 day |
A+Text CompressionAll text resources are compressedPASS
A+Font Loading11 fonts (519 KB)PASS
Web fonts
11
519 KB total
Render-blocking
0
of 11
Dominant font-display
swap
Most common across fonts
Font loading timeline
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
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 ~134 KB and ~268 ms
A+Resource CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
A+Compression AlgorithmMain response uses brotliPASS
A+LCP Image PreloadLCP preload audit not availablePASS
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
A+Server Response Intelligence2 server-response signal(s) detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Something Familiar
Network Waterfall65 requests over 2802msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
www.gstatic.com www.gstatic.com | Other | 352ms | 0 KB | 43% | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 83ms | 159 KB | 42% | $1/mo | Optional |
These scripts may cost more than they're worth
- www.gstatic.com adds 352ms and costs ~$5/month
58% 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
www.gstatic.com takes 352ms 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
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-05-13 — 2026-06-09)
LCP (p75)
1324 ms
94% good
INP (p75)
45 ms
99% good
CLS (p75)
0.010
96% good
FCP (p75)
1060 ms
TTFB (p75)
692 ms
Image Optimization16 images, 271 KB total, 1 KB wastedINFO
Image Optimization Audit
Total Images
16
Total Size
271 KB
Oversized
1
Wasted
1 KB