https://competitorsbacklinksfree.website
Performance
· 27 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.SCORE
91
GRADE
A
FIX
2
REVIEW
4
PASS
17
INFO
4
Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
59
91
100
92
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
6.55 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
9.55 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
0 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.019
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
6.55 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.
9.55 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
2717 PASS 4 REVIEW 2 FIX
DThird-Party ImpactAction87% third-party, 0 ms blockingFIX
Third-Party Impact
Action87% third-party, 0 ms blocking
87% third-party, 0 ms blocking
Warning::
Third-party code accounts for 87% of page weight (1.1 MiB of 1.2 MiB)
Info::
Third-party blocking time is low (0 ms)
87%
First-party Third-party
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.
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BPage Weight Budget1.2 MB transferred, 33 requestsREVIEW
Page Weight Budget
1.2 MB transferred, 33 requests
1.2 MB transferred, 33 requests
Info::
Page weighs 4.0 MB (1.2 MB transferred)
Warning::
JavaScript is 870 KB — consider code splitting or lazy loading
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Got: 870 KB
Info::
33 HTTP requests
Info::
Estimated 0.26 g CO2 per page load
1.2 MB transferred
33 requests
0.26 g CO2 per page load
JavaScript 870.1 KiB 69%
Images 171.6 KiB 14%
Fonts 81.2 KiB 6%
HTML 76.3 KiB 6%
CSS 64.1 KiB 5%
Other 2.3 KiB 0%
Other 945 B 0%
Other 726 B 0%
Other 0 B 0%
0 2.4 MB 4.9 MB
Under budget
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
Why this matters
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
CJS Execution CostAction1215ms total JS executionREVIEW
JS Execution Cost
Action1215ms total JS execution
1215ms total JS execution
Warning::
https://competitorsbacklinksfree.website/: 835ms CPU time
Info::
Unattributable: 249ms CPU time
Info::
https://static.cloudflareinsights.com/beacon.min.j...: 75ms CPU time
Info::
https://competitorsbacklinksfree.website/assets/js...: 55ms CPU time
Info::
Third-party scripts: 75ms (6% of total)
Main Thread Breakdown
Style & Layout 44% Other 36% Script Evaluation 11% Rendering 6%
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| https://competitorsbacklinksfree.website/ | 835ms | 23ms | 3ms | 1st |
| Unattributable | 249ms | 9ms | 0ms | 1st |
| https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d87301792088814092 | 75ms | 55ms | 0ms | 3rd |
| https://competitorsbacklinksfree.website/assets/js.js | 55ms | 43ms | 1ms | 1st |
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.
CPage Weight InventoryAction33 resources · 1.2 MB · 0 KB savings availableREVIEW
Page Weight Inventory
Action33 resources · 1.2 MB · 0 KB savings available
33 resources · 1.2 MB · 0 KB savings available
Warning::
Page weight 1.2 MB exceeds 1 MB target by 243 KB
Got: 1.2 MB Expected: ≤ 1 MB
Warning::
19 third-party resources (87% of weight)
Info::
2 resources over 200KB
33 resources · 1.2 MiB · 19 third-party 243.4 KiB over 1MB target
JavaScript 69% · 870.1 KiB
Image 14% · 174.7 KiB
Font 6% · 81.2 KiB
Document 6% · 76.4 KiB
CSS 5% · 64.1 KiB
Other 0% · 945 B
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 33 resources | 1.2 MiB | ||||||
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 Optimization11 images, 0 KB saveablePASS
Image Optimization
11 images, 0 KB saveable
11 images, 0 KB saveable
Warning::
https://competitorsbacklinksfree.website/assets/im... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
11 images 172 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+Font Loading2 fonts (81 KB)PASS
Font Loading
2 fonts (81 KB)
2 fonts (81 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
2
81 KB total
Render-blocking
0
of 2
Dominant font-display
swap
Most common across fonts
Font loading timeline
Transfer FOIT (block) FOUT (swap)
UcC73FwrK3iLTeHuS_nVMrM... woff2 swap
Size 47 KB
Load time 22 ms
Start 249 ms
Risk FOUT — text flashes from fallback to web font
KFO7CnqEu92Fr1ME7kSn66a... woff2 swap
Size 34 KB
Load time 38 ms
Start 524 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)
A+JS Bundles7 scripts, 0 KB unusedPASS
JS Bundles
7 scripts, 0 KB unused
7 scripts, 0 KB unused
0 KB unused JavaScript
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://static.cloudflareinsights.com/beacon.min.js/vce701823e78c4301a35b7e07294d87301792088814092 | 10 KB | — | ✓ | 3rd |
| https://competitorsbacklinksfree.website/assets/js.js | 1 KB | — | ✓ | 1st |
| https://www.youtube.com/s/_/ytembeds/_/js/k=ytembeds.base.en_US.IkWErumI3ck.2021.O/am=AAAAQA/d=1/excm=base,root/br=1/rs=AGKMywHKwBZQHZN85EdXcVlZmeF_dJDq7Q/m=root,base | 150 KB | — | ✓ | 3rd |
| https://www.youtube.com/s/player/cbcfbf2f/player_embed_es6.vflset/en_US/base.js | 463 KB | — | ✓ | 3rd |
| https://static.doubleclick.net/instream/ad_status.js | 0 KB | — | ✓ | 3rd |
| https://www.youtube.com/s/_/ytembeds/_/js/k=ytembeds.base.en_US.IkWErumI3ck.2021.O/ck=ytembeds.base.SKK5Z7LAK_Y.L.W.O/am=AAAAQA/d=1/exm=base,root/excm=base,root/ed=1/br=1/rs=AGKMywFLt1TGolnkeIGDW4a_JBsoaJYKKQ/m=r78Drb | 222 KB | — | ✓ | 3rd |
| https://www.google.com/js/th/YI2XvVwvdBJTNOg4tmE81lkRxYCcxVDASxYzC3ult3w.js | 24 KB | — | ✓ | 3rd |
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 Hints2 hints, 0 missing preconnectsPASS
Resource Hints
2 hints, 0 missing preconnects
2 hints, 0 missing preconnects
Info::
Page uses 2 resource hint(s)
Current Resource Hints
preconnect 2
preload—
dns-prefetch—
prefetch—
2 resource hints configured
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+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+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: 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::
No `ETag` or `Last-Modified` -- conditional GET not supported
Without either header, browsers can't issue conditional GETs and refresh always re-downloads the full response body even when nothing changed. Add `ETag: "<hash>"` (or `Last-Modified: <date>`) on cacheable responses; the server returns 304 Not Modified when the client's cached copy is still valid, saving bandwidth.
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
Render-Blocking Resources
No render-blocking resources detected
No render-blocking resources detected
Info::
No render-blocking resources detected in <head>
A+Third-Party ResourcesNo third-party resources detectedPASS
Third-Party Resources
No third-party resources detected
No third-party resources detected
A+JavaScript BlockingNo render-blocking JS or document.write usage detectedPASS
JavaScript Blocking
No render-blocking JS or document.write usage detected
No render-blocking JS or document.write usage detected
Info::
No JavaScript blocking issues detected
A+CSS Performance DepthNo CSS performance depth issues detectedPASS
CSS Performance Depth
No CSS performance depth issues detected
No CSS performance depth issues detected
Info::
No CSS performance depth issues detected
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 Waterfall33 requests over 1819msINFO
Network Waterfall
33 requests over 1819ms
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
6% of JavaScript execution is third-party
First-party Third-party 75ms · 10KB · $1/mo
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
static.cloudflareinsights.com static.cloudflareinsights.com | Other | 75ms | 10 KB | — | $1/mo | Optional |
static.cloudflareinsights.com
Other
Execution 75ms
Transfer 10 KB
Monthly Cost $1/mo
Image Optimization9 images, 135 KB total, 133 KB wastedINFO
Image Optimization
9 images, 135 KB total, 133 KB wasted
Image Optimization Audit
Total Images
9
Total Size
135 KB
Oversized
9
Wasted
133 KB
1 missing alt text 8 missing dimensions
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.