https://cdnq4.de.mikecrm.com/images/index/new/mike... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/scen... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/logo/footer_mi... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/logo/footer_mi... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/scen... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/scen... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/logo/footer@2x... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/head... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/scen... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/scen... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
Warning::
!
https://cdnq4.de.mikecrm.com/images/index/new/logo... is missing width/height — may cause layout shift
Set explicit width and height to prevent CLS.
44images796 KB
0oversized-0 KB
38legacy format
20missing dimensionsCLS 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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW
Green Hosting
No green hosting detected
B
HTTP Caching
private
REVIEW
private
Info::
✓
Cache-Control header is set
Got: private
Info::
i
No ETag or Last-Modified header
Conditional requests (304 Not Modified) are not possible without validators.
Cache-Control
private
Directive
Value
Meaning
private
—
Only browser cache, not CDN/proxy
A+
Text Compression
All text resources are compressed
PASS
All text resources are compressed
Info::
✓
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
9 fonts (813 KB)
PASS
9 fonts (813 KB)
Info::
i
9 font(s) use font-display: swap (FOUT risk but functional)
Web fonts
9
813 KB total
Render-blocking
0
of 9
Dominant font-display
swap
Most common across fonts
Font loading timeline
TransferFOIT (block)FOUT (swap)
SourceHanSerifSC-Bold.w...woff2swap
Size87 KB
Load time752 ms
Start1.3 s
RiskFOUT — text flashes from fallback to web font
IndexSansRegular.woff2woff2swap
Size138 KB
Load time723 ms
Start1.3 s
RiskFOUT — 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
SourceHanSerifSC-ext-Bo...woff2swap
Size348 KB
Load time761 ms
Start1.3 s
RiskFOUT — 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
IndexSansBold.woff2woff2swap
Size138 KB
Load time685 ms
Start1.3 s
RiskFOUT — 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
bold.woff2woff2swap
Size33 KB
Load time35 ms
Start2.1 s
RiskFOUT — text flashes from fallback to web font
WalkwayBold.woff2woff2swap
Size3 KB
Load time36 ms
Start2.1 s
RiskFOUT — text flashes from fallback to web font
regular.woff2woff2swap
Size31 KB
Load time37 ms
Start2.1 s
RiskFOUT — text flashes from fallback to web font
WalkwayExpandSemiBold.w...woff2swap
Size4 KB
Load time32 ms
Start2.1 s
RiskFOUT — text flashes from fallback to web font
iconFont.woff2woff2swap
Size30 KB
Load time33 ms
Start2.3 s
RiskFOUT — 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 ~312 KB and ~624 ms
A+
Resource Caching
All resources properly cached
PASS
All resources properly cached
Info::
✓
No caching issues found
All static resources have appropriate caching headers.
A+
Critical Rendering Path
No render-blocking resources
PASS
No render-blocking resources
Info::
✓
No render-blocking resources detected
A+
Resource Hints
5 hints, 0 missing preconnects
PASS
5 hints, 0 missing preconnects
Info::
✓
Page uses 5 resource hint(s)
Current Resource Hints
preconnect—
preload
4
dns-prefetch
1
prefetch—
5 resource hints configured
A+
Render-Blocking Resources
No render-blocking resources detected
PASS
No render-blocking resources detected
Info::
✓
No render-blocking resources detected in <head>
A+
Third-Party Resources
No third-party resources detected
PASS
No third-party resources detected
Network Waterfall
77 requests over 3029ms
INFO
HTML JavaScript CSS Images Fonts XHR/Fetch Other
Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
100%of JavaScript execution is third-party
First-party Third-party3020ms · 840KB · ¥373/mo
Script
Category
Execution
Transfer
Unused
Monthly Cost
Verdict
cdnq4.de.mikecrm.com
cdnq4.de.mikecrm.com
Other
1341ms
514 KB
44%
¥165/mo
Costly
de.mikecrm.com
de.mikecrm.com
Other
1034ms
13 KB
—
¥128/mo
Costly
Unattributable
Unattributable
Other
337ms
0 KB
—
¥42/mo
Costly
Google Tag Manager
www.googletagmanager.com
Tag Manager
162ms
166 KB
42%
¥20/mo
Optional
cdnq4.de.mikecrm.com
cdnq4.de.mikecrm.com
Other
93ms
126 KB
52%
¥12/mo
Optional
Google Analytics
www.google-analytics.com
Analytics
52ms
21 KB
—
¥6/mo
Optional
cdnq4.de.mikecrm.com
Other
Costly
Execution1341ms
Transfer514 KB
Unused44%
Monthly Cost¥165/mo
de.mikecrm.com
Other
Costly
Execution1034ms
Transfer13 KB
Monthly Cost¥128/mo
Unattributable
Other
Costly
Execution337ms
Transfer0 KB
Monthly Cost¥42/mo
Google Tag Manager
Tag Manager
Optional
Execution162ms
Transfer166 KB
Unused42%
Monthly Cost¥20/mo
cdnq4.de.mikecrm.com
Other
Optional
Execution93ms
Transfer126 KB
Unused52%
Monthly Cost¥12/mo
Google Analytics
Analytics
Optional
Execution52ms
Transfer21 KB
Monthly Cost¥6/mo
These scripts may cost more than they're worth
cdnq4.de.mikecrm.com adds 1341ms and costs ~¥165/month
de.mikecrm.com adds 1034ms and costs ~¥128/month
Unattributable adds 337ms and costs ~¥42/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
Why this matters
When third-party JS execution time exceeds your own, performance gains from frontend work are capped by code you don't own.
Learn more ▾▴
Every millisecond of third-party JS competes with your own for main-thread time. If their share is bigger than yours, optimization on your code base barely moves the needle. Audit, defer, or remove third-parties before further frontend optimization. Use Lighthouse's third-party audit to identify the worst offenders.
Source: web.dev
cdnq4.de.mikecrm.com takes 1341ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
de.mikecrm.com takes 1034ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Unattributable takes 337ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
Why this matters
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
52% of cdnq4.de.mikecrm.com's code is unused. The script may be loading features you don't use.
Why this matters
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.