https://www.linkcentre.com/profile/unmineableminer/
Performance
· 23 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
91
GRADE
A
FIX
1
REVIEW
3
PASS
15
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
98
87
100
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
698 ms
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
981 ms
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2 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.
698 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.
1.62 s
Page Load Progression
Checks
2315 PASS 3 REVIEW 1 FIX
DThird-Party ImpactAction85% third-party, 0 ms blockingFIX
Third-Party Impact
Action85% third-party, 0 ms blocking
85% third-party, 0 ms blocking
Warning::
Third-party code accounts for 85% of page weight (765.8 KiB of 904.9 KiB)
Info::
Third-party blocking time is low (0 ms)
15%
85%
First-party Third-party
BJS Bundles15 scripts, 95 KB unusedREVIEW
JS Bundles
15 scripts, 95 KB unused
15 scripts, 95 KB unused
Warning::
https://www.googletagmanager.com/gtag/js?id=G-0DSJ...: 95 KB unused (48%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.linkcentre.com/js/linkcentre-tracker.j...: unminified — 2 KB could be saved
Info::
Total unused JavaScript: 95 KB
95 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://www.googletagmanager.com/gtag/js?id=G-0DSJCNGJ1Z | 198 KB | 95 KB (48%) | ✓ | 3rd |
| https://www.linkcentre.com/analytics-unified.js?v=1.0.2 | 3 KB | — | ✓ | 1st |
| https://www.linkcentre.com/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js | 1 KB | — | ✓ | 1st |
| https://www.linkcentre.com/pn/embed.js?v=15 | 2 KB | — | ✓ | 1st |
| https://www.linkcentre.com/js/linkcentre-tracker.js | 5 KB | — | ✗ | 1st |
| https://widgets.tree-nation.com/js/widgets/v3/widgets.min.js | 1 KB | — | ✓ | 3rd |
| https://www.cookiewise.net/api/script.js?website_id=e3edb09e-632c-421b-a241-e4014d1866fd | 10 KB | — | ✓ | 3rd |
| https://public.profitwell.com/js/profitwell.js?auth=1170b33fdd7f53e8406064364a89bead | 13 KB | — | ✓ | 3rd |
| https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d87301792088814092 | 10 KB | — | ✓ | 3rd |
| https://widgets.tree-nation.com/_nuxt/D3E3_sXO.js | 84 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
BHTTP/3 (QUIC)HTTP/3 not advertisedREVIEW
HTTP/3 (QUIC)
HTTP/3 not advertised
HTTP/3 not advertised
Info::
HTTP/3 (QUIC) is not advertised
HTTP/3 isn't advertised via Alt-Svc and the worker didn't negotiate h3. HTTP/3 reduces handshake latency (1-RTT instead of 2-3 RTTs) and is more resilient on lossy connections. Most modern CDNs (Cloudflare, Fastly, AWS CloudFront, Google Cloud CDN) support HTTP/3 with a single config switch -- consider enabling for mobile-heavy workloads.
BHTTP Cachingpublic, s-maxage=900, max-age=0, must-revalidateREVIEW
HTTP Caching
public, s-maxage=900, max-age=0, must-revalidate
public, s-maxage=900, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, s-maxage=900, max-age=0, must-revalidate
Info::
CDN TTL: 15 minutes (s-maxage=900)
Info::
Last-Modified header present
Cache-Control
public, s-maxage=900, max-age=0, must-revalidate
| Directive | Value | Meaning |
|---|---|---|
| public | — | Any cache may store this response |
| s-maxage | 900 | CDN caches for 15 minutes |
| max-age | 0 | Cache for 0 seconds |
| must-revalidate | — | Must recheck with server after expiry |
APage Weight Budget905 KB transferred, 48 requestsPASS
Page Weight Budget
905 KB transferred, 48 requests
905 KB transferred, 48 requests
Info::
Page weighs 1.8 MB (905 KB transferred)
Info::
Fonts are 407 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 407 KB
Info::
48 HTTP requests
Info::
Estimated 0.19 g CO2 per page load
905 KB transferred
48 requests
0.19 g CO2 per page load
Fonts 406.7 KiB 45%
JavaScript 333.6 KiB 37%
Images 77.2 KiB 9%
CSS 48.4 KiB 5%
HTML 24.9 KiB 3%
Other 6.8 KiB 1%
Other 6.5 KiB 1%
Other 414 B 0%
Other 413 B 0%
0 2.4 MB 4.9 MB
Under budget
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
A+Text CompressionAll text resources are compressedPASS
Text Compression
All text resources are compressed
All text resources are compressed
Info::
All text resources are compressed
All text resources are properly compressed.
AImage Optimization4 images, 0 KB saveablePASS
Image Optimization
4 images, 0 KB saveable
4 images, 0 KB saveable
Warning::
https://www.linkcentre.com/images/LinkCentre-Logo.... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
4 images 77 KB
0 oversized -0 KB
2 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
A+JS Execution Cost155ms total JS executionPASS
JS Execution Cost
155ms total JS execution
155ms total JS execution
Info::
https://www.linkcentre.com/profile/unmineableminer...: 102ms CPU time
Info::
Unattributable: 53ms CPU time
Main Thread Breakdown
Style & Layout 31% Script Evaluation 30% Other 24% Script Parsing & Compilation 6% Parse HTML & CSS 4% Rendering 4%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://www.linkcentre.com/profile/unmineableminer/ | 102ms | 4ms | 2ms | 1st |
| Unattributable | 53ms | 2ms | 0ms | 1st |
A+Font Loading6 fonts (407 KB)PASS
Font Loading
6 fonts (407 KB)
6 fonts (407 KB)
Info::
6 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
6
407 KB total
Render-blocking
0
of 6
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 42 KB
Load time 100 ms
Start 315 ms
Risk FOUT — text flashes from fallback to web font
fa-regular-400.woff2 woff2 swap
Size 25 KB
Load time 77 ms
Start 315 ms
Risk FOUT — text flashes from fallback to web font
fa-solid-900.woff2 woff2 swap
Size 154 KB
Load time 93 ms
Start 316 ms
Risk FOUT — text flashes from fallback to web font
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
fa-brands-400.woff2 woff2 swap
Size 115 KB
Load time 96 ms
Start 316 ms
Risk FOUT — text flashes from fallback to web font
- Subset this font — over 100 KB suggests Latin Extended or full glyph coverage that most pages don't need
memvYaGs126MiZpBA-UvWbX... woff2 swap
Size 46 KB
Load time 99 ms
Start 317 ms
Risk FOUT — text flashes from fallback to web font
Manrope-normal-400-lati... woff2 swap
Size 25 KB
Load time 19 ms
Start 537 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)
Fixing the unchecked items could save ~134 KB and ~268 ms
A+Resource CachingAll resources properly cachedPASS
Resource Caching
All resources properly cached
All resources properly cached
Info::
No caching issues found
All static resources have appropriate caching headers.
A+Critical Rendering PathNo render-blocking resourcesPASS
Critical Rendering Path
No render-blocking resources
No render-blocking resources
Info::
No render-blocking resources detected
A+Resource HintsNo optimization neededPASS
Resource Hints
No optimization needed
No optimization needed
Info::
No resource hint issues
A+Document CompressionDocument response uses brotliPASS
Document Compression
Document response uses brotli
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+LCP Image PreloadLCP preload audit not availablePASS
LCP Image Preload
LCP preload audit not available
LCP preload audit not available
Info::
LCP image preload audit not available for this scan
A+Main HTML Cache-ControlMain HTML max-age=0 (≤ 5min) is appropriatePASS
Main HTML Cache-Control
Main HTML max-age=0 (≤ 5min) is appropriate
Main HTML max-age=0 (≤ 5min) is appropriate
Info::
Main HTML max-age=0 (≤ 5min) is appropriate
Got: public, s-maxage=900, max-age=0, must-revalidate
A+Server-Timing Observability3 Server-Timing entries advertisedPASS
Server-Timing Observability
3 Server-Timing entries advertised
3 Server-Timing entries advertised
Info::
Server-Timing header advertises 3 timing entries
A+Server Response Intelligence2 server-response signal(s) detectedPASS
Server Response Intelligence
2 server-response signal(s) detected
2 server-response signal(s) detected
Info::
`Vary` header declared: Cookie, 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.
APage Weight Inventory48 resources · 905 KB · 95 KB savings availablePASS
Page Weight Inventory
48 resources · 905 KB · 95 KB savings available
48 resources · 905 KB · 95 KB savings available
Info::
Within 1MB page-weight target
Got: 905 KB
Info::
~95 KB of savings available
Warning::
25 third-party resources (85% of weight)
48 resources · 904.9 KiB · 25 third-party Within 1MB page-weight target
Font 45% · 406.7 KiB
JavaScript 37% · 339.1 KiB
Image 9% · 78.0 KiB
CSS 5% · 48.4 KiB
Document 3% · 24.9 KiB
Other 1% · 7.8 KiB
~94.6 KiB of savings available
Remove unused JavaScript: 94.6 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 48 resources | 904.9 KiB | ||||||
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
Whether the site is served from green-energy infrastructure
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Asset CompressionNo text asset hosts to measureINFO
Asset Compression
No text asset hosts to measure
No text asset hosts to measure
Info::
No third-party or subdomain host served enough text assets to measure
Asset compression is measured per host, from one HEAD request against a sampled resource. Pages that serve all their JS and CSS from the document's own origin are covered by the document compression check instead.
Network Waterfall48 requests over 688msINFO
Network Waterfall
48 requests over 688ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Real-User Performance (CrUX)Field metrics from the Chrome User Experience ReportINFO
Real-User Performance (CrUX)
Field metrics from the Chrome User Experience Report
Chrome User Experience (CrUX)
Real-user metrics from the Chrome UX Report (2026-09-29 — 2026-10-26)
LCP (p75)
1368 ms
95% good
INP (p75)
64 ms
97% good
CLS (p75)
0.000
99% good
FCP (p75)
1102 ms
TTFB (p75)
639 ms
This origin passes Core Web Vitals assessment
Image Optimization4 images, 110 KB total, 73 KB wastedINFO
Image Optimization
4 images, 110 KB total, 73 KB wasted
Image Optimization Audit
Total Images
4
Total Size
110 KB
Oversized
2
Wasted
73 KB
3 missing dimensions 2 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.