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Performance

· 15 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
88
GRADE
B
FIX
2
REVIEW
2
PASS
9
INFO
2

Performance-focused optimization plan with CWV assessment, top offenders, and time estimates

Mobile Desktop
98
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
100
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
100
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

921 ms

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

933 ms

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

43 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.003

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

921 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.

1.13 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 s
Checks
15
9 PASS 2 REVIEW 2 FIX
D
Third-Party Impact
Action
99% third-party, 0 ms blocking
FIX
99% third-party, 0 ms blocking
Warning::
Third-party code accounts for 99% of page weight (382.2 KiB of 384.2 KiB)
Info::
Third-party blocking time is low (0 ms)
99%
First-party Third-party
F
HTTP Caching
Action
No cache headers
FIX
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.

B
Image Optimization
7 images, 0 KB saveable
REVIEW
7 images, 0 KB saveable
Info::
All images are well-optimized
7 images 3 KB
0 oversized -0 KB
7 legacy format
0 missing dimensions CLS risk
B
JS Bundles
7 scripts, 137 KB unused
REVIEW
7 scripts, 137 KB unused
Warning::
https://www.gstatic.com/_/mss/boq-identity/_/js/k=...: 55 KB unused (61%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/feedback/js/help/prod/serv...: 30 KB unused (77%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/_/mss/boq-identity/_/js/k=...: 26 KB unused (76%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.gstatic.com/_/mss/boq-identity/_/js/k=...: 26 KB unused (37%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 137 KB
137 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/ck=boq-identity.ConsentUi.jAl7BrHCFEw.L.B1.O/am=AAAAAJgF/d=1/exm=_b,_tp/excm=_b,_tp,mainview/ed=1/wt=2/ujg=1/rs=AOaEmlET9gzQEGctT2Gk4qXBaNFvQAejRA/ee=BcQPH:lOY4De;EVNhjf:pw70Gc;EmZ2Bf:zr1jrb;JsbNhc:Xd8iUd;K5nYTd:ZDZcre;LBgRLc:SdcwHb;Me32dd:MEeYgc;NJ1rfe:qTnoBf;NPKaK:SdcwHb;NSEoX:lazG7b;Pjplud:EEDORb;QGR0gd:Mlhmy;SMDL4c:fTfGO;SNUn3:ZwDk9d;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;VlRiDf:j7ZRif;YIZmRd:A1yn5d;a56pNe:JEfCwb;cEt90b:ws9Tlc;dIoSBb:SpsfSb;dowIGb:ebZ3mb;eBAeSb:zbML3c;iFQyKf:QIhFr;j9c1Cc:xywqXb;lOO0Vd:OTA3Ae;oGtAuc:sOXFj;oSUNyd:fTfGO;pXdRYb:MdUzUe;qQEoOc:KUM7Z;qafBPd:yDVVkb;qddgKe:xQtZb;vNjB7d:YTxL4;wR5FRb:O1Gjze;xqZiqf:BBI74;yxTchf:KUM7Z;zxnPse:GkRiKb/dti=1/m=ws9Tlc,O6y8ed,aW3pY,GkRiKb,e5qFLc,IZT63,YYmHzb,pw70Gc,n73qwf,UUJqVe,KUM7Z,O1Gjze,byfTOb,lsjVmc,xUdipf,ZDZcre,OTA3Ae,ZwDk9d,RyvaUb,fTfGO,m9oV,vjKJJ,y5vRwf,PrPYRd,MpJwZc,LEikZe,NwH0H,V3dDOb,cYShmd,XVMNvd,WpP9Yc,QIhFr,xQtZb,lwddkf,gychg,w9hDv,RMhBfe,qmdT9,SdcwHb,EFQ78c,Ulmmrd,A7fCU,hc6Ubd,JNoxi,BVgquf,SpsfSb,Z5uLle,BBI74,MdUzUe,zbML3c,zr1jrb,YTxL4,Uas9Hd,OgOVNe,pjICDe90 KB55 KB (61%)✓3rd
https://www.gstatic.com/feedback/js/help/prod/service/lazy.min.js39 KB30 KB (77%)✓3rd
https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/ck=boq-identity.ConsentUi.jAl7BrHCFEw.L.B1.O/am=AAAAAJgF/d=1/exm=A7fCU,BBI74,BVgquf,EFQ78c,GkRiKb,IZT63,JNoxi,KUM7Z,LEikZe,MdUzUe,MpJwZc,NwH0H,O1Gjze,O6y8ed,OTA3Ae,OgOVNe,PrPYRd,QIhFr,RMhBfe,RyvaUb,SdcwHb,SpsfSb,UUJqVe,Uas9Hd,Ulmmrd,V3dDOb,WpP9Yc,XVMNvd,YTxL4,YYmHzb,Z5uLle,ZDZcre,ZwDk9d,_b,_tp,aW3pY,byfTOb,cYShmd,e5qFLc,fTfGO,gychg,hc6Ubd,lsjVmc,lwddkf,m9oV,n73qwf,pjICDe,pw70Gc,qmdT9,vjKJJ,w9hDv,ws9Tlc,xQtZb,xUdipf,y5vRwf,zbML3c,zr1jrb/excm=_b,_tp,mainview/ed=1/wt=2/ujg=1/rs=AOaEmlET9gzQEGctT2Gk4qXBaNFvQAejRA/ee=BcQPH:lOY4De;EVNhjf:pw70Gc;EmZ2Bf:zr1jrb;JsbNhc:Xd8iUd;K5nYTd:ZDZcre;LBgRLc:SdcwHb;Me32dd:MEeYgc;NJ1rfe:qTnoBf;NPKaK:SdcwHb;NSEoX:lazG7b;Pjplud:EEDORb;QGR0gd:Mlhmy;SMDL4c:fTfGO;SNUn3:ZwDk9d;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;VlRiDf:j7ZRif;YIZmRd:A1yn5d;a56pNe:JEfCwb;cEt90b:ws9Tlc;dIoSBb:SpsfSb;dowIGb:ebZ3mb;eBAeSb:zbML3c;iFQyKf:QIhFr;j9c1Cc:xywqXb;lOO0Vd:OTA3Ae;oGtAuc:sOXFj;oSUNyd:fTfGO;pXdRYb:MdUzUe;qQEoOc:KUM7Z;qafBPd:yDVVkb;qddgKe:xQtZb;vNjB7d:YTxL4;wR5FRb:O1Gjze;xqZiqf:BBI74;yxTchf:KUM7Z;zxnPse:GkRiKb/dti=1/m=fkuQ3,Ndreoc,ZvHseb,O626Fe,LBaJxb,bZ0mod,uoEu0c,w9C4d,oJz28e34 KB26 KB (76%)✓3rd
https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/am=AAAAAJgF/d=1/excm=_b,_tp,mainview/ed=1/dg=0/wt=2/ujg=1/rs=AOaEmlF3ST15eVdwfhmhMsqEaIdQpn-Yeg/dti=1/m=_b,_tp70 KB26 KB (37%)✓3rd
https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/ck=boq-identity.ConsentUi.jAl7BrHCFEw.L.B1.O/am=AAAAAJgF/d=1/exm=A7fCU,BBI74,BVgquf,EFQ78c,GkRiKb,IZT63,JNoxi,KUM7Z,LBaJxb,LEikZe,MdUzUe,MpJwZc,Ndreoc,NwH0H,O1Gjze,O626Fe,O6y8ed,OTA3Ae,OgOVNe,PrPYRd,QIhFr,RMhBfe,RyvaUb,SdcwHb,SpsfSb,UUJqVe,Uas9Hd,Ulmmrd,V3dDOb,WpP9Yc,XVMNvd,YTxL4,YYmHzb,Z5uLle,ZDZcre,ZvHseb,ZwDk9d,_b,_tp,aW3pY,bZ0mod,byfTOb,cYShmd,e5qFLc,fTfGO,fkuQ3,gychg,hc6Ubd,lsjVmc,lwddkf,m9oV,n73qwf,oJz28e,pjICDe,pw70Gc,qmdT9,uoEu0c,vjKJJ,w9C4d,w9hDv,ws9Tlc,xQtZb,xUdipf,y5vRwf,zbML3c,zr1jrb/excm=_b,_tp,mainview/ed=1/wt=2/ujg=1/rs=AOaEmlET9gzQEGctT2Gk4qXBaNFvQAejRA/ee=BcQPH:lOY4De;EVNhjf:pw70Gc;EmZ2Bf:zr1jrb;JsbNhc:Xd8iUd;K5nYTd:ZDZcre;LBgRLc:SdcwHb;Me32dd:MEeYgc;NJ1rfe:qTnoBf;NPKaK:SdcwHb;NSEoX:lazG7b;Pjplud:EEDORb;QGR0gd:Mlhmy;SMDL4c:fTfGO;SNUn3:ZwDk9d;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;VlRiDf:j7ZRif;YIZmRd:A1yn5d;a56pNe:JEfCwb;cEt90b:ws9Tlc;dIoSBb:SpsfSb;dowIGb:ebZ3mb;eBAeSb:zbML3c;iFQyKf:QIhFr;j9c1Cc:xywqXb;lOO0Vd:OTA3Ae;oGtAuc:sOXFj;oSUNyd:fTfGO;pXdRYb:MdUzUe;qQEoOc:KUM7Z;qafBPd:yDVVkb;qddgKe:xQtZb;vNjB7d:YTxL4;wR5FRb:O1Gjze;xqZiqf:BBI74;yxTchf:KUM7Z;zxnPse:GkRiKb/dti=1/m=p3hmRc,LvGhrf,RqjULd14 KB—✓3rd
https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/ck=boq-identity.ConsentUi.jAl7BrHCFEw.L.B1.O/am=AAAAAJgF/d=1/exm=A7fCU,BBI74,BVgquf,EFQ78c,GkRiKb,IZT63,JNoxi,KUM7Z,LBaJxb,LEikZe,LvGhrf,MdUzUe,MpJwZc,Ndreoc,NwH0H,O1Gjze,O626Fe,O6y8ed,OTA3Ae,OgOVNe,PrPYRd,QIhFr,RMhBfe,RqjULd,RyvaUb,SdcwHb,SpsfSb,UUJqVe,Uas9Hd,Ulmmrd,V3dDOb,WpP9Yc,XVMNvd,YTxL4,YYmHzb,Z5uLle,ZDZcre,ZvHseb,ZwDk9d,_b,_tp,aW3pY,bZ0mod,byfTOb,cYShmd,e5qFLc,fTfGO,fkuQ3,gychg,hc6Ubd,lsjVmc,lwddkf,m9oV,n73qwf,oJz28e,p3hmRc,pjICDe,pw70Gc,qmdT9,uoEu0c,vjKJJ,w9C4d,w9hDv,ws9Tlc,xQtZb,xUdipf,y5vRwf,zbML3c,zr1jrb/excm=_b,_tp,mainview/ed=1/wt=2/ujg=1/rs=AOaEmlET9gzQEGctT2Gk4qXBaNFvQAejRA/ee=BcQPH:lOY4De;EVNhjf:pw70Gc;EmZ2Bf:zr1jrb;JsbNhc:Xd8iUd;K5nYTd:ZDZcre;LBgRLc:SdcwHb;Me32dd:MEeYgc;NJ1rfe:qTnoBf;NPKaK:SdcwHb;NSEoX:lazG7b;Pjplud:EEDORb;QGR0gd:Mlhmy;SMDL4c:fTfGO;SNUn3:ZwDk9d;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;VlRiDf:j7ZRif;YIZmRd:A1yn5d;a56pNe:JEfCwb;cEt90b:ws9Tlc;dIoSBb:SpsfSb;dowIGb:ebZ3mb;eBAeSb:zbML3c;iFQyKf:QIhFr;j9c1Cc:xywqXb;lOO0Vd:OTA3Ae;oGtAuc:sOXFj;oSUNyd:fTfGO;pXdRYb:MdUzUe;qQEoOc:KUM7Z;qafBPd:yDVVkb;qddgKe:xQtZb;vNjB7d:YTxL4;wR5FRb:O1Gjze;xqZiqf:BBI74;yxTchf:KUM7Z;zxnPse:GkRiKb/dti=1/m=P6sQOc1 KB—✓3rd
https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/ck=boq-identity.ConsentUi.jAl7BrHCFEw.L.B1.O/am=AAAAAJgF/d=1/exm=A7fCU,BBI74,BVgquf,EFQ78c,GkRiKb,IZT63,JNoxi,KUM7Z,LBaJxb,LEikZe,LvGhrf,MdUzUe,MpJwZc,Ndreoc,NwH0H,O1Gjze,O626Fe,O6y8ed,OTA3Ae,OgOVNe,P6sQOc,PrPYRd,QIhFr,RMhBfe,RqjULd,RyvaUb,SdcwHb,SpsfSb,UUJqVe,Uas9Hd,Ulmmrd,V3dDOb,WpP9Yc,XVMNvd,YTxL4,YYmHzb,Z5uLle,ZDZcre,ZvHseb,ZwDk9d,_b,_tp,aW3pY,bZ0mod,byfTOb,cYShmd,e5qFLc,fTfGO,fkuQ3,gychg,hc6Ubd,lsjVmc,lwddkf,m9oV,n73qwf,oJz28e,p3hmRc,pjICDe,pw70Gc,qmdT9,uoEu0c,vjKJJ,w9C4d,w9hDv,ws9Tlc,xQtZb,xUdipf,y5vRwf,zbML3c,zr1jrb/excm=_b,_tp,mainview/ed=1/wt=2/ujg=1/rs=AOaEmlET9gzQEGctT2Gk4qXBaNFvQAejRA/ee=BcQPH:lOY4De;EVNhjf:pw70Gc;EmZ2Bf:zr1jrb;JsbNhc:Xd8iUd;K5nYTd:ZDZcre;LBgRLc:SdcwHb;Me32dd:MEeYgc;NJ1rfe:qTnoBf;NPKaK:SdcwHb;NSEoX:lazG7b;Pjplud:EEDORb;QGR0gd:Mlhmy;SMDL4c:fTfGO;SNUn3:ZwDk9d;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;VlRiDf:j7ZRif;YIZmRd:A1yn5d;a56pNe:JEfCwb;cEt90b:ws9Tlc;dIoSBb:SpsfSb;dowIGb:ebZ3mb;eBAeSb:zbML3c;iFQyKf:QIhFr;j9c1Cc:xywqXb;lOO0Vd:OTA3Ae;oGtAuc:sOXFj;oSUNyd:fTfGO;pXdRYb:MdUzUe;qQEoOc:KUM7Z;qafBPd:yDVVkb;qddgKe:xQtZb;vNjB7d:YTxL4;wR5FRb:O1Gjze;xqZiqf:BBI74;yxTchf:KUM7Z;zxnPse:GkRiKb/dti=1/m=Wt6vjf,hhhU8,FCpbqb,WhJNk2 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

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

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

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+
Page Weight Budget
384 KB transferred, 20 requests
PASS
384 KB transferred, 20 requests
Info::
Page weighs 1.4 MB (384 KB transferred)
Info::
20 HTTP requests
Info::
Estimated 0.08 g CO2 per page load
384 KB / 2.4 MB budget
384 KB transferred
20 requests
0.08 g CO2 per page load
JavaScript 250.8 KiB 65%
HTML 65.4 KiB 17%
Fonts 61.6 KiB 16%
Other 3.5 KiB 1%
Images 3.0 KiB 1%
0 2.4 MB 4.9 MB
Under budget
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+
JS Execution Cost
413ms total JS execution
PASS
413ms total JS execution
Info::
https://consent.google.co.uk/m?continue=https://ma...: 144ms CPU time
Info::
https://www.gstatic.com/_/mss/boq-identity/_/js/k=...: 105ms CPU time
Info::
Unattributable: 89ms CPU time
Info::
https://www.gstatic.com/_/mss/boq-identity/_/js/k=...: 75ms CPU time
Warning::
Third-party scripts: 413ms (100% of total)

Main Thread Breakdown

Script Evaluation 41% Other 22% Style & Layout 18% Script Parsing & Compilation 9% Parse HTML & CSS 7%
ScriptTotalScriptingParse/CompileParty
https://consent.google.co.uk/m?continue=https://maps.google.co.uk/maps&gl=NL&m=0&pc=m&uxe=eomtm&cm=2&hl=nl&src=1144ms12ms6ms3rd
https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/ck=boq-identity.ConsentUi.jAl7BrHCFEw.L.B1.O/am=AAAAAJgF/d=1/exm=_b,_tp/excm=_b,_tp,mainview/ed=1/wt=2/ujg=1/rs=AOaEmlET9gzQEGctT2Gk4qXBaNFvQAejRA/ee=BcQPH:lOY4De;EVNhjf:pw70Gc;EmZ2Bf:zr1jrb;JsbNhc:Xd8iUd;K5nYTd:ZDZcre;LBgRLc:SdcwHb;Me32dd:MEeYgc;NJ1rfe:qTnoBf;NPKaK:SdcwHb;NSEoX:lazG7b;Pjplud:EEDORb;QGR0gd:Mlhmy;SMDL4c:fTfGO;SNUn3:ZwDk9d;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;VlRiDf:j7ZRif;YIZmRd:A1yn5d;a56pNe:JEfCwb;cEt90b:ws9Tlc;dIoSBb:SpsfSb;dowIGb:ebZ3mb;eBAeSb:zbML3c;iFQyKf:QIhFr;j9c1Cc:xywqXb;lOO0Vd:OTA3Ae;oGtAuc:sOXFj;oSUNyd:fTfGO;pXdRYb:MdUzUe;qQEoOc:KUM7Z;qafBPd:yDVVkb;qddgKe:xQtZb;vNjB7d:YTxL4;wR5FRb:O1Gjze;xqZiqf:BBI74;yxTchf:KUM7Z;zxnPse:GkRiKb/dti=1/m=ws9Tlc,O6y8ed,aW3pY,GkRiKb,e5qFLc,IZT63,YYmHzb,pw70Gc,n73qwf,UUJqVe,KUM7Z,O1Gjze,byfTOb,lsjVmc,xUdipf,ZDZcre,OTA3Ae,ZwDk9d,RyvaUb,fTfGO,m9oV,vjKJJ,y5vRwf,PrPYRd,MpJwZc,LEikZe,NwH0H,V3dDOb,cYShmd,XVMNvd,WpP9Yc,QIhFr,xQtZb,lwddkf,gychg,w9hDv,RMhBfe,qmdT9,SdcwHb,EFQ78c,Ulmmrd,A7fCU,hc6Ubd,JNoxi,BVgquf,SpsfSb,Z5uLle,BBI74,MdUzUe,zbML3c,zr1jrb,YTxL4,Uas9Hd,OgOVNe,pjICDe105ms83ms11ms3rd
Unattributable89ms3ms0ms3rd
https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/am=AAAAAJgF/d=1/excm=_b,_tp,mainview/ed=1/dg=0/wt=2/ujg=1/rs=AOaEmlF3ST15eVdwfhmhMsqEaIdQpn-Yeg/dti=1/m=_b,_tp75ms58ms11ms3rd
A+
Font Loading
2 fonts (62 KB)
PASS
2 fonts (62 KB)
Info::
2 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

2

62 KB total

Render-blocking

0

of 2

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s FCP 921 ms LCP 933 mshttps://fonts.gstatic.com/s/googlesans/v58/4UaRrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iq2vgCIhM907w.woff24UaRrENHsxJlGDuGo1OIlJf... https://fonts.gstatic.com/s/googlesans/v58/4UaRrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iq2vgCIhM907w.woff2 — 51.1 KiB — 19 ms — font-display: swaphttps://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2KFOmCnqEu92Fr1Mu4mxKKTU... https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2 — 10.5 KiB — 22 ms — font-display: swap
4UaRrENHsxJlGDuGo1OIlJf... woff2 swap
Size 51 KB
Load time 19 ms
Start 301 ms
Risk FOUT — text flashes from fallback to web font
KFOmCnqEu92Fr1Mu4mxKKTU... woff2 swap
Size 11 KB
Load time 22 ms
Start 302 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+
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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
A
Page Weight Inventory
20 resources · 384 KB · 137 KB savings available
PASS
20 resources · 384 KB · 137 KB savings available
Info::
Within 1MB page-weight target
Got: 384 KB
Info::
~137 KB of savings available
Warning::
18 third-party resources (99% of weight)
20 resources · 384.2 KiB · 18 third-party Within 1MB page-weight target
JavaScript 65% · 250.8 KiB
Document 18% · 67.4 KiB
Font 16% · 61.6 KiB
Image 1% · 4.5 KiB

~137.1 KiB of savings available

Remove unused JavaScript: 137.1 KiB
A+
Green Hosting
Whether the site is served from green-energy infrastructure
PASS

Green Hosting

This site is hosted on green energy infrastructure

Provider: Google Cloud

Network Waterfall
20 requests over 626ms
INFO
0 ms 200 ms 400 ms 600 ms 800 ms FCP 921 ms LCP 933 mshttps://maps.google.co.uk// https://maps.google.co.uk/ — 302 — 1.2 KiB — 11 ms — h2https://maps.google.co.uk/maps/maps https://maps.google.co.uk/maps — 302 — 823 B — 40 ms — h2https://consent.google.co.uk/m?continue=https://maps.google.co.uk/maps&gl=NL&m=0&pc=m&uxe=eomtm&cm=2&hl=nl&src=1consent.google.co.uk/m?continue=htt... https://consent.google.co.uk/m?continue=https://maps.google.co.uk/maps&gl=NL&m=0&pc=m&uxe=eomtm&cm=2&hl=nl&src=1 — 200 — 65.4 KiB — 44 ms — h2https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/am=AAAAAJgF/d=1/excm=_b,_tp,mainview/ed=1/dg=0/wt=2/ujg=1/rs=AOaEmlF3ST15eVdwfhmhMsqEaIdQpn-Yeg/dti=1/m=_b,_tpwww.gstatic.com/_/mss/boq-identity/... https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/am=AAAAAJgF/d=1/excm=_b,_tp,mainview/ed=1/dg=0/wt=2/ujg=1/rs=AOaEmlF3ST15eVdwfhmhMsqEaIdQpn-Yeg/dti=1/m=_b,_tp — 200 — 70.4 KiB — 38 ms — h2https://www.gstatic.com/images/branding/googlelogo/svg/googlelogo_clr_160x56px.svgwww.gstatic.com/images/branding/goo... https://www.gstatic.com/images/branding/googlelogo/svg/googlelogo_clr_160x56px.svg — 200 — 1.1 KiB — 29 ms — h2https://www.gstatic.com/ac/cb/li_design_services_cb_v2_2_gm_grey_700.svgwww.gstatic.com/ac/cb/li_design_ser... https://www.gstatic.com/ac/cb/li_design_services_cb_v2_2_gm_grey_700.svg — 200 — 420 B — 12 ms — h3https://www.gstatic.com/ac/cb/li_warnings_cb_v2_2_gm_grey_700.svgwww.gstatic.com/ac/cb/li_warnings_c... https://www.gstatic.com/ac/cb/li_warnings_cb_v2_2_gm_grey_700.svg — 200 — 271 B — 21 ms — h3https://www.gstatic.com/ac/cb/li_bar_chart_cb_v2_2_gm_grey_700.svgwww.gstatic.com/ac/cb/li_bar_chart_... https://www.gstatic.com/ac/cb/li_bar_chart_cb_v2_2_gm_grey_700.svg — 200 — 164 B — 21 ms — h3https://www.gstatic.com/ac/cb/li_insights_cb_v2_2_gm_grey_700.svgwww.gstatic.com/ac/cb/li_insights_c... https://www.gstatic.com/ac/cb/li_insights_cb_v2_2_gm_grey_700.svg — 200 — 361 B — 21 ms — h3https://www.gstatic.com/ac/cb/li_magic_button_cb_v2_2_gm_grey_700.svgwww.gstatic.com/ac/cb/li_magic_butt... https://www.gstatic.com/ac/cb/li_magic_button_cb_v2_2_gm_grey_700.svg — 200 — 226 B — 20 ms — h3https://www.gstatic.com/ac/cb/li_ads_cb_v2_2_gm_grey_700.svgwww.gstatic.com/ac/cb/li_ads_cb_v2_... https://www.gstatic.com/ac/cb/li_ads_cb_v2_2_gm_grey_700.svg — 200 — 441 B — 20 ms — h3https://fonts.gstatic.com/s/googlesans/v58/4UaRrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iq2vgCIhM907w.woff2fonts.gstatic.com/s/googlesans/v58/... https://fonts.gstatic.com/s/googlesans/v58/4UaRrENHsxJlGDuGo1OIlJfC6l_24rlCK1Yo_Iq2vgCIhM907w.woff2 — 200 — 51.1 KiB — 19 ms — h3https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2fonts.gstatic.com/s/roboto/v18/KFOm... https://fonts.gstatic.com/s/roboto/v18/KFOmCnqEu92Fr1Mu4mxKKTU1Kg.woff2 — 200 — 10.5 KiB — 22 ms — 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https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/ck=boq-identity.ConsentUi.jAl7BrHCFEw.L.B1.O/am=AAAAAJgF/d=1/exm=A7fCU,BBI74,BVgquf,EFQ78c,GkRiKb,IZT63,JNoxi,KUM7Z,LBaJxb,LEikZe,LvGhrf,MdUzUe,MpJwZc,Ndreoc,NwH0H,O1Gjze,O626Fe,O6y8ed,OTA3Ae,OgOVNe,PrPYRd,QIhFr,RMhBfe,RqjULd,RyvaUb,SdcwHb,SpsfSb,UUJqVe,Uas9Hd,Ulmmrd,V3dDOb,WpP9Yc,XVMNvd,YTxL4,YYmHzb,Z5uLle,ZDZcre,ZvHseb,ZwDk9d,_b,_tp,aW3pY,bZ0mod,byfTOb,cYShmd,e5qFLc,fTfGO,fkuQ3,gychg,hc6Ubd,lsjVmc,lwddkf,m9oV,n73qwf,oJz28e,p3hmRc,pjICDe,pw70Gc,qmdT9,uoEu0c,vjKJJ,w9C4d,w9hDv,ws9Tlc,xQtZb,xUdipf,y5vRwf,zbML3c,zr1jrb/excm=_b,_tp,mainview/ed=1/wt=2/ujg=1/rs=AOaEmlET9gzQEGctT2Gk4qXBaNFvQAejRA/ee=BcQPH:lOY4De;EVNhjf:pw70Gc;EmZ2Bf:zr1jrb;JsbNhc:Xd8iUd;K5nYTd:ZDZcre;LBgRLc:SdcwHb;Me32dd:MEeYgc;NJ1rfe:qTnoBf;NPKaK:SdcwHb;NSEoX:lazG7b;Pjplud:EEDORb;QGR0gd:Mlhmy;SMDL4c:fTfGO;SNUn3:ZwDk9d;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;VlRiDf:j7ZRif;YIZmRd:A1yn5d;a56pNe:JEfCwb;cEt90b:ws9Tlc;dIoSBb:SpsfSb;dowIGb:ebZ3mb;eBAeSb:zbML3c;iFQyKf:QIhFr;j9c1Cc:xywqXb;lOO0Vd:OTA3Ae;oGtAuc:sOXFj;oSUNyd:fTfGO;pXdRYb:MdUzUe;qQEoOc:KUM7Z;qafBPd:yDVVkb;qddgKe:xQtZb;vNjB7d:YTxL4;wR5FRb:O1Gjze;xqZiqf:BBI74;yxTchf:KUM7Z;zxnPse:GkRiKb/dti=1/m=P6sQOc — 200 — 1.0 KiB — 6 ms — h3https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/ck=boq-identity.ConsentUi.jAl7BrHCFEw.L.B1.O/am=AAAAAJgF/d=1/exm=A7fCU,BBI74,BVgquf,EFQ78c,GkRiKb,IZT63,JNoxi,KUM7Z,LBaJxb,LEikZe,LvGhrf,MdUzUe,MpJwZc,Ndreoc,NwH0H,O1Gjze,O626Fe,O6y8ed,OTA3Ae,OgOVNe,P6sQOc,PrPYRd,QIhFr,RMhBfe,RqjULd,RyvaUb,SdcwHb,SpsfSb,UUJqVe,Uas9Hd,Ulmmrd,V3dDOb,WpP9Yc,XVMNvd,YTxL4,YYmHzb,Z5uLle,ZDZcre,ZvHseb,ZwDk9d,_b,_tp,aW3pY,bZ0mod,byfTOb,cYShmd,e5qFLc,fTfGO,fkuQ3,gychg,hc6Ubd,lsjVmc,lwddkf,m9oV,n73qwf,oJz28e,p3hmRc,pjICDe,pw70Gc,qmdT9,uoEu0c,vjKJJ,w9C4d,w9hDv,ws9Tlc,xQtZb,xUdipf,y5vRwf,zbML3c,zr1jrb/excm=_b,_tp,mainview/ed=1/wt=2/ujg=1/rs=AOaEmlET9gzQEGctT2Gk4qXBaNFvQAejRA/ee=BcQPH:lOY4De;EVNhjf:pw70Gc;EmZ2Bf:zr1jrb;JsbNhc:Xd8iUd;K5nYTd:ZDZcre;LBgRLc:SdcwHb;Me32dd:MEeYgc;NJ1rfe:qTnoBf;NPKaK:SdcwHb;NSEoX:lazG7b;Pjplud:EEDORb;QGR0gd:Mlhmy;SMDL4c:fTfGO;SNUn3:ZwDk9d;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;VlRiDf:j7ZRif;YIZmRd:A1yn5d;a56pNe:JEfCwb;cEt90b:ws9Tlc;dIoSBb:SpsfSb;dowIGb:ebZ3mb;eBAeSb:zbML3c;iFQyKf:QIhFr;j9c1Cc:xywqXb;lOO0Vd:OTA3Ae;oGtAuc:sOXFj;oSUNyd:fTfGO;pXdRYb:MdUzUe;qQEoOc:KUM7Z;qafBPd:yDVVkb;qddgKe:xQtZb;vNjB7d:YTxL4;wR5FRb:O1Gjze;xqZiqf:BBI74;yxTchf:KUM7Z;zxnPse:GkRiKb/dti=1/m=Wt6vjf,hhhU8,FCpbqb,WhJNkwww.gstatic.com/_/mss/boq-identity/... https://www.gstatic.com/_/mss/boq-identity/_/js/k=boq-identity.ConsentUi.nl.qKIq2TNh5QM.2018.O/ck=boq-identity.ConsentUi.jAl7BrHCFEw.L.B1.O/am=AAAAAJgF/d=1/exm=A7fCU,BBI74,BVgquf,EFQ78c,GkRiKb,IZT63,JNoxi,KUM7Z,LBaJxb,LEikZe,LvGhrf,MdUzUe,MpJwZc,Ndreoc,NwH0H,O1Gjze,O626Fe,O6y8ed,OTA3Ae,OgOVNe,P6sQOc,PrPYRd,QIhFr,RMhBfe,RqjULd,RyvaUb,SdcwHb,SpsfSb,UUJqVe,Uas9Hd,Ulmmrd,V3dDOb,WpP9Yc,XVMNvd,YTxL4,YYmHzb,Z5uLle,ZDZcre,ZvHseb,ZwDk9d,_b,_tp,aW3pY,bZ0mod,byfTOb,cYShmd,e5qFLc,fTfGO,fkuQ3,gychg,hc6Ubd,lsjVmc,lwddkf,m9oV,n73qwf,oJz28e,p3hmRc,pjICDe,pw70Gc,qmdT9,uoEu0c,vjKJJ,w9C4d,w9hDv,ws9Tlc,xQtZb,xUdipf,y5vRwf,zbML3c,zr1jrb/excm=_b,_tp,mainview/ed=1/wt=2/ujg=1/rs=AOaEmlET9gzQEGctT2Gk4qXBaNFvQAejRA/ee=BcQPH:lOY4De;EVNhjf:pw70Gc;EmZ2Bf:zr1jrb;JsbNhc:Xd8iUd;K5nYTd:ZDZcre;LBgRLc:SdcwHb;Me32dd:MEeYgc;NJ1rfe:qTnoBf;NPKaK:SdcwHb;NSEoX:lazG7b;Pjplud:EEDORb;QGR0gd:Mlhmy;SMDL4c:fTfGO;SNUn3:ZwDk9d;ScI3Yc:e7Hzgb;Uvc8o:VDovNc;VlRiDf:j7ZRif;YIZmRd:A1yn5d;a56pNe:JEfCwb;cEt90b:ws9Tlc;dIoSBb:SpsfSb;dowIGb:ebZ3mb;eBAeSb:zbML3c;iFQyKf:QIhFr;j9c1Cc:xywqXb;lOO0Vd:OTA3Ae;oGtAuc:sOXFj;oSUNyd:fTfGO;pXdRYb:MdUzUe;qQEoOc:KUM7Z;qafBPd:yDVVkb;qddgKe:xQtZb;vNjB7d:YTxL4;wR5FRb:O1Gjze;xqZiqf:BBI74;yxTchf:KUM7Z;zxnPse:GkRiKb/dti=1/m=Wt6vjf,hhhU8,FCpbqb,WhJNk — 200 — 1.6 KiB — 9 ms — h3https://www.google.com/favicon.icowww.google.com/favicon.ico https://www.google.com/favicon.ico — 200 — 1.5 KiB — 16 ms — h3
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-party 413ms · 226KB · £4/mo
consent.google.co.uk
Other
Optional
Execution 144ms
Transfer 65 KB
Monthly Cost £2/mo
www.gstatic.com
Other
Optional
Execution 105ms
Transfer 90 KB
Unused 61%
Monthly Cost £1/mo
Unattributable
Other
Optional
Execution 89ms
Transfer 0 KB
Monthly Cost £1/mo
www.gstatic.com
Other
Optional
Execution 75ms
Transfer 70 KB
Unused 37%
Monthly Cost £1/mo

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

61% of www.gstatic.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.

Source: web.dev

How third-party costs are calculated

All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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