https://Btours.Hammer3.com
Performance
· 22 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
92
GRADE
A
FIX
1
REVIEW
5
PASS
13
INFO
3
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
91
100
96
100
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.07 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
1.62 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
10 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.
1.25 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.
1.62 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 sChecks
2213 PASS 5 REVIEW 1 FIX
FHTTP CachingActionNo cache headersFIX
HTTP Caching
ActionNo cache headers
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.
BThird-Party Impact45% third-party, 0 ms blockingREVIEW
Third-Party Impact
45% third-party, 0 ms blocking
45% third-party, 0 ms blocking
Info::
Third-party code accounts for 45% of page weight (327.2 KiB of 727.1 KiB)
Info::
Third-party blocking time is low (0 ms)
55%
45%
First-party Third-party
BImage Optimization22 images, 0 KB saveableREVIEW
Image Optimization
22 images, 0 KB saveable
22 images, 0 KB saveable
Info::
All images are well-optimized
22 images 322 KB
0 oversized -0 KB
20 legacy format
0 missing dimensions CLS risk
CCompression AlgorithmActionMain response served uncompressedREVIEW
Compression Algorithm
ActionMain response served uncompressed
Main response served uncompressed
Info::
Main HTML response has no Content-Encoding (uncompressed)
The main HTML document is served without compression. The Text Compression section above lists the broader picture; for the main response specifically, even gzip would shave ~70-80% off most text payloads.
BMain HTML Cache-ControlNo Cache-Control header on main HTML responseREVIEW
Main HTML Cache-Control
No Cache-Control header on main HTML response
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.
BServer-Timing ObservabilityNo Server-Timing header foundREVIEW
Server-Timing Observability
No Server-Timing header found
No Server-Timing header found
Info::
No Server-Timing header found
Server-Timing exposes backend timing breakdowns to browser DevTools (e.g., `db: 45ms; render: 120ms; cache: 2ms`). Useful for diagnosing slow pages without backend log access. Most modern frameworks (Next.js, Cloudflare Workers, Fastly) emit it automatically; absence on a managed platform usually means telemetry headers are stripped at the edge.
APage Weight Budget727 KB transferred, 52 requestsPASS
Page Weight Budget
727 KB transferred, 52 requests
727 KB transferred, 52 requests
Info::
Page weighs 1.6 MB (727 KB transferred)
Info::
52 HTTP requests
Info::
Estimated 0.15 g CO2 per page load
727 KB transferred
52 requests
0.15 g CO2 per page load
JavaScript 359.8 KiB 49%
Images 322.0 KiB 44%
CSS 22.8 KiB 3%
Other 19.2 KiB 3%
HTML 1.3 KiB 0%
Other 1.1 KiB 0%
Other 824 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
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.
A+JS Execution Cost237ms total JS executionPASS
JS Execution Cost
237ms total JS execution
237ms total JS execution
Info::
https://btours.hammer3.com/assets/index-Crfk5TTE.j...: 129ms CPU time
Info::
Unattributable: 57ms CPU time
Info::
https://btours.hammer3.com/assets/UserLocation-Bjn...: 51ms CPU time
Info::
Third-party scripts: 57ms (24% of total)
Main Thread Breakdown
Script Evaluation 42% Other 32% Style & Layout 14% Parse HTML & CSS 7%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://btours.hammer3.com/assets/index-Crfk5TTE.js | 129ms | 82ms | 0ms | 1st |
| Unattributable | 57ms | 1ms | 0ms | 3rd |
| https://btours.hammer3.com/assets/UserLocation-BjnW1zg5.js | 51ms | 21ms | 0ms | 1st |
A+Font LoadingNo web fonts (system fonts)PASS
Font Loading
No web fonts (system fonts)
No web fonts (system fonts)
Info::
No web fonts loaded — system fonts are fastest
No web fonts loaded — system fonts are optimal.
A+JS Bundles22 scripts, 39 KB unusedPASS
JS Bundles
22 scripts, 39 KB unused
22 scripts, 39 KB unused
Warning::
https://btours.hammer3.com/assets/UserLocation-Bjn...: 39 KB unused (58%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 39 KB
39 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://btours.hammer3.com/assets/UserLocation-BjnW1zg5.js | 68 KB | 39 KB (58%) | ✓ | 1st |
| https://btours.hammer3.com/assets/index-CydB4vuc.js | 1 KB | — | ✓ | 1st |
| https://btours.hammer3.com/assets/index-BRd0I2wM.js | 1 KB | — | ✓ | 1st |
| https://cloud.umami.is/script.js | 3 KB | — | ✓ | 3rd |
| https://btours.hammer3.com/assets/index-Crfk5TTE.js | 96 KB | — | ✓ | 1st |
| https://btours.hammer3.com/assets/index-UCxuYfkG.js | 5 KB | — | ✓ | 1st |
| https://btours.hammer3.com/assets/separator-ZKRHYXDO.js | 128 KB | — | ✓ | 1st |
| https://btours.hammer3.com/assets/index-C8xdbHWa.js | 4 KB | — | ✓ | 1st |
| https://btours.hammer3.com/assets/index-DuBLeacs.js | 1 KB | — | ✓ | 1st |
| https://btours.hammer3.com/assets/button-BUee3lis.js | 2 KB | — | ✓ | 1st |
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
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+HTTP/3 (QUIC)HTTP/3 advertised via Alt-SvcPASS
HTTP/3 (QUIC)
HTTP/3 advertised via Alt-Svc
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+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+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: 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 Inventory52 resources · 727 KB · 39 KB savings availablePASS
Page Weight Inventory
52 resources · 727 KB · 39 KB savings available
52 resources · 727 KB · 39 KB savings available
Info::
Within 1MB page-weight target
Got: 727 KB
Warning::
26 third-party resources (45% of weight)
52 resources · 727.1 KiB · 26 third-party Within 1MB page-weight target
JavaScript 49% · 359.8 KiB
Image 47% · 341.3 KiB
CSS 3% · 22.8 KiB
Other 0% · 1.9 KiB
Document 0% · 1.3 KiB
~39.2 KiB of savings available
Remove unused JavaScript: 39.2 KiB
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 52 resources | 727.1 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
Network Waterfall52 requests over 907msINFO
Network Waterfall
52 requests over 907ms
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
24% of JavaScript execution is third-party
First-party Third-party 57ms · 0KB · $1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 57ms | 0 KB | — | $1/mo | Optional |
Unattributable
Other
Execution 57ms
Transfer 0 KB
Monthly Cost $1/mo
Image Optimization15 images, 147 KB total, 115 KB wastedINFO
Image Optimization
15 images, 147 KB total, 115 KB wasted
Image Optimization Audit
Total Images
15
Total Size
147 KB
Oversized
3
Wasted
115 KB
12 missing alt text 15 missing dimensions 3 missing lazy loading
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.