Performance

· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

Mobile Desktop

Performance

Accessibility

Best Practices

SEO

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

1.99 s

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

9.16 s

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

4.04 s

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

0.548

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

5.58 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.

29.75 s

Page Load Progression

712 ms

1.4 s

2.1 s

2.8 s

3.6 s

4.3 s

5.0 s

5.7 s

Checks

7 PASS 3 REVIEW 5 FIX

Page Weight Budget

Action

4.1 MB transferred, 154 requests

FIX

4.1 MB transferred, 154 requests

Page weighs 11.6 MB (4.1 MB transferred)

JavaScript is 2.6 MB — consider code splitting or lazy loading

Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.

Got: 2.6 MB

Fonts are 642 KB — consider subsetting or using system fonts

Subset fonts to include only used characters, or switch to system font stacks.

Got: 642 KB

154 HTTP requests — consider bundling or reducing

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Estimated 0.86 g CO2 per page load

4.1 MB transferred

154 requests

0.86 g CO2 per page load

JavaScript 2.6 MiB 64%

Images 714.1 KiB 17%

Fonts 642.1 KiB 15%

Other 51.8 KiB 1%

HTML 45.2 KiB 1%

CSS 40.4 KiB 1%

Other 7.9 KiB 0%

Other 3.3 KiB 0%

Other 1.1 KiB 0%

Other 0 B 0%

0 2.4 MB 4.9 MB

Over 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

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

Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.

Why this matters

High HTTP request count — bundling, sprite-ing, and HTTP/2 server push can reduce per-request overhead.

Source: web.dev

Third-Party Impact

Action

100% third-party, 0 ms blocking

FIX

100% third-party, 0 ms blocking

Third-party code accounts for 100% of page weight (4.1 MiB of 4.1 MiB)

Third-party blocking time is low (0 ms)

100%

First-party Third-party

JS Execution Cost

Action

12097ms total JS execution

FIX

12097ms total JS execution

https://www.goto.com/: 2324ms CPU time

Unattributable: 1785ms CPU time

https://www.googletagmanager.com/gtm.js?id=GTM-KP8...: 1536ms CPU time

https://www.goto.com/_next/static/chunks/framework...: 981ms CPU time

https://www.goto.com/_next/static/chunks/pages/_ap...: 592ms CPU time

Third-party scripts: 12097ms (100% of total)

Main Thread Breakdown

Script Evaluation 52% Other 18% Rendering 10% Style & Layout 9% Script Parsing & Compilation 8%

Script	Total	Scripting	Parse/Compile	Party
https://www.goto.com/	2324ms	49ms	3ms	3rd
Unattributable	1785ms	87ms	0ms	3rd
https://www.googletagmanager.com/gtm.js?id=GTM-KP8F3CX	1536ms	1109ms	125ms	3rd
https://www.goto.com/_next/static/chunks/framework-de98b93a850cfc71.js	981ms	775ms	29ms	3rd
https://www.goto.com/_next/static/chunks/pages/_app-4988ce35afc0118b.js	592ms	465ms	9ms	3rd
https://js.qualified.com/qualified.js?token=hUipxtRKEHpLVXaK	586ms	454ms	55ms	3rd
https://www.googletagmanager.com/gtag/js?id=G-6MMS07YSMJ&cx=c&gtm=4e64h1	492ms	418ms	67ms	3rd
https://www.goto.com/_next/static/chunks/pages/%5B%5B...path%5D%5D-1443c39fccf4f8ac.js	452ms	451ms	1ms	3rd
https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js	411ms	249ms	69ms	3rd
https://www.googletagmanager.com/gtag/destination?id=AW-979374314&cx=c&gtm=4e64h1	408ms	335ms	67ms	3rd

Showing top 10 of 26 scripts

JS Bundles

Action

50 scripts, 766 KB unused

FIX

50 scripts, 766 KB unused

https://www.goto.com/_next/static/chunks/992-52db6...: 135 KB unused (76%)

Consider code splitting or tree shaking to reduce unused code.

https://www.goto.com/_next/static/chunks/299-c5fb4...: 129 KB unused (67%)

Consider code splitting or tree shaking to reduce unused code.

https://cdn.cookielaw.org/scripttemplates/202601.1...: 67 KB unused (53%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/js?id=G-6MMS...: 63 KB unused (38%)

Consider code splitting or tree shaking to reduce unused code.

https://www.googletagmanager.com/gtag/destination?...: 61 KB unused (47%)

Consider code splitting or tree shaking to reduce unused code.

Total unused JavaScript: 766 KB

766 KB unused JavaScript

Downloaded but never executed on this page.

Script	Size	Unused	Minified	Party
https://www.goto.com/_next/static/chunks/992-52db63a281bfe1ff.js	179 KB	135 KB (76%)	✓	3rd
https://www.goto.com/_next/static/chunks/299-c5fb47e00534af36.js	197 KB	129 KB (67%)	✓	3rd
https://cdn.cookielaw.org/scripttemplates/202601.1.0/otBannerSdk.js	127 KB	67 KB (53%)	✓	3rd
https://www.googletagmanager.com/gtag/js?id=G-6MMS07YSMJ&cx=c&gtm=4e64h1	164 KB	63 KB (38%)	✓	3rd
https://www.googletagmanager.com/gtag/destination?id=DC-9294863&cx=c&gtm=4e64h1	131 KB	61 KB (47%)	✓	3rd
https://www.googletagmanager.com/gtag/destination?id=AW-979374314&cx=c&gtm=4e64h1	137 KB	59 KB (43%)	✓	3rd
https://js.qualified.com/qualified.js?token=hUipxtRKEHpLVXaK	117 KB	57 KB (49%)	✓	3rd
https://www.googletagmanager.com/gtm.js?id=GTM-KP8F3CX	201 KB	48 KB (24%)	✓	3rd
https://js.qualified.com/packs/js/multimodal_v2-3fbc98a7.js	97 KB	47 KB (52%)	✓	3rd
https://connect.facebook.net/en_US/fbevents.js	97 KB	32 KB (33%)	✓	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

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

Page Weight Inventory

Action

154 resources · 4.1 MB · 766 KB savings available

FIX

154 resources · 4.1 MB · 766 KB savings available

Page weight 3.1 MB over 1MB target

Got: 4.1 MB Expected: ≤ 1 MB

~766 KB of savings available

153 third-party resources (100% of weight)

4 resources over 200KB

154 resources · 4.1 MiB · 153 third-party 3.1 MiB over 1MB target

JavaScript 64% · 2.6 MiB

Image 17% · 716.5 KiB

Font 15% · 642.1 KiB

Other 1% · 56.2 KiB

Document 1% · 46.0 KiB

CSS 1% · 45.0 KiB

~765.8 KiB of savings available

Remove unused JavaScript: 765.8 KiB

#	Resource	Type	Size	Cache	Unused	3rd party	Issues

154 resources			4.1 MiB

Image Optimization

35 images, 0 KB saveable

REVIEW

35 images, 0 KB saveable

All images are well-optimized

35 images 714 KB

0 oversized -0 KB

32 legacy format

0 missing dimensions CLS risk

Green Hosting

Action

Whether the site is served from green-energy infrastructure

REVIEW

Green Hosting

No green hosting detected

HTTP Caching

public, max-age=0, must-revalidate

REVIEW

public, max-age=0, must-revalidate

Cache-Control header is set

Got: public, max-age=0, must-revalidate

No ETag or Last-Modified header

Conditional requests (304 Not Modified) are not possible without validators.

Cache-Control

public, max-age=0, must-revalidate

Directive	Value	Meaning
public	—	Any cache may store this response
max-age	0	Cache for 0 seconds
must-revalidate	—	Must recheck with server after expiry

A+

Text Compression

All text resources are compressed

PASS

All text resources are compressed

All text resources are properly compressed.

A+

Font Loading

8 fonts (642 KB)

PASS

8 fonts (642 KB)

8 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

642 KB total

Render-blocking

of 8

Dominant font-display

swap

Most common across fonts

Font loading timeline

Transfer FOIT (block) FOUT (swap)

AtypDisplay-Medium.a413... woff swap

Size 97 KB

Load time 33 ms

Start 949 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

Figtree-Bold.787d6ce7.ttf ttf swap

Size 24 KB

Load time 35 ms

Start 949 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

Figtree-Regular.2560a62... ttf swap

Size 23 KB

Load time 37 ms

Start 950 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

AtypBLText-Semibold.6a5... woff swap

Size 52 KB

Load time 38 ms

Start 952 ms

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

Figtree-SemiBold.1e4cf3... ttf swap

Size 23 KB

Load time 23 ms

Start 2.4 s

Risk FOUT — text flashes from fallback to web font

Convert to woff2 for ~30% smaller file size

Inter-Regular.f1f0c35b.... woff2 swap

Size 97 KB

Load time 34 ms

Start 3.4 s

Risk FOUT — text flashes from fallback to web font

Inter-SemiBold.fcb100c7... woff2 swap

Size 104 KB

Load time 40 ms

Start 3.4 s

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

Inter-roman.var.b2129c0... woff2 swap

Size 222 KB

Load time 39 ms

Start 5.5 s

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

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 ~229 KB and ~458 ms

A+

Resource Caching

All resources properly cached

PASS

All resources properly cached

No caching issues found

All static resources have appropriate caching headers.

A+

Critical Rendering Path

No render-blocking resources

PASS

No render-blocking resources

No render-blocking resources detected

A+

Resource Hints

4 hints, 0 missing preconnects

PASS

4 hints, 0 missing preconnects

Page uses 4 resource hint(s)

Current Resource Hints

preconnect

preload

dns-prefetch

—

prefetch

—

4 resource hints configured

A+

Render-Blocking Resources

No render-blocking resources detected

PASS

No render-blocking resources detected

No render-blocking resources detected in <head>

A+

Third-Party Resources

No third-party resources detected

PASS

No third-party resources detected

Network Waterfall

154 requests over 6574ms

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-party 12097ms · 1809KB · $209/mo

Script	Category	Execution	Transfer	Unused	Monthly Cost	Verdict
www.goto.com www.goto.com	Other	2324ms	39 KB	—	$40/mo	Costly
Unattributable Unattributable	Other	1785ms	0 KB	—	$31/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	1536ms	201 KB	24%	$27/mo	Costly
www.goto.com www.goto.com	Other	981ms	60 KB	36%	$17/mo	Costly
www.goto.com www.goto.com	Other	592ms	22 KB	—	$10/mo	Costly
js.qualified.com js.qualified.com	Other	586ms	117 KB	49%	$10/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	492ms	164 KB	38%	$9/mo	Costly
www.goto.com www.goto.com	Other	452ms	1 KB	—	$8/mo	Costly
OneTrust cdn.cookielaw.org	Consent	411ms	127 KB	53%	$7/mo	Essential
Google Tag Manager www.googletagmanager.com	Tag Manager	408ms	137 KB	43%	$7/mo	Costly
Google Tag Manager www.googletagmanager.com	Tag Manager	320ms	131 KB	47%	$6/mo	Costly
j.6sc.co j.6sc.co	Other	299ms	19 KB	—	$5/mo	Costly
www.goto.com www.goto.com	Other	261ms	2 KB	—	$4/mo	Costly
Facebook Pixel connect.facebook.net	Advertising	209ms	97 KB	33%	$4/mo	Costly
js.qualified.com js.qualified.com	Other	207ms	97 KB	52%	$4/mo	Costly
try.abtasty.com try.abtasty.com	Other	198ms	48 KB	42%	$3/mo	Optional
Facebook Pixel connect.facebook.net	Advertising	192ms	46 KB	—	$3/mo	Optional
www.goto.com www.goto.com	Other	141ms	41 KB	—	$2/mo	Optional
www.goto.com www.goto.com	Other	140ms	179 KB	76%	$2/mo	Optional
d.impactradius-event.com d.impactradius-event.com	Other	133ms	20 KB	—	$2/mo	Optional
www.goto.com www.goto.com	Other	85ms	197 KB	67%	$1/mo	Optional
www.redditstatic.com www.redditstatic.com	Other	84ms	19 KB	—	$1/mo	Optional
OneTrust cdn.cookielaw.org	Consent	75ms	9 KB	—	$1/mo	Essential
munchkin.marketo.net munchkin.marketo.net	Other	68ms	1 KB	—	$1/mo	Optional
LinkedIn Insight snap.licdn.com	Advertising	65ms	19 KB	—	$1/mo	Optional
Bing UET bat.bing.com	Advertising	53ms	15 KB	—	$1/mo	Optional

www.goto.com

Other

Costly

Execution 2324ms

Transfer 39 KB

Monthly Cost $40/mo

Unattributable

Other

Costly

Execution 1785ms

Transfer 0 KB

Monthly Cost $31/mo

Google Tag Manager

Tag Manager

Costly

Execution 1536ms

Transfer 201 KB

Unused 24%

Monthly Cost $27/mo

www.goto.com

Other

Costly

Execution 981ms

Transfer 60 KB

Unused 36%

Monthly Cost $17/mo

www.goto.com

Other

Costly

Execution 592ms

Transfer 22 KB

Monthly Cost $10/mo

js.qualified.com

Other

Costly

Execution 586ms

Transfer 117 KB

Unused 49%

Monthly Cost $10/mo

Google Tag Manager

Tag Manager

Costly

Execution 492ms

Transfer 164 KB

Unused 38%

Monthly Cost $9/mo

www.goto.com

Other

Costly

Execution 452ms

Transfer 1 KB

Monthly Cost $8/mo

OneTrust

Consent

Essential

Execution 411ms

Transfer 127 KB

Unused 53%

Monthly Cost $7/mo

Google Tag Manager

Tag Manager

Costly

Execution 408ms

Transfer 137 KB

Unused 43%

Monthly Cost $7/mo

Google Tag Manager

Tag Manager

Costly

Execution 320ms

Transfer 131 KB

Unused 47%

Monthly Cost $6/mo

j.6sc.co

Other

Costly

Execution 299ms

Transfer 19 KB

Monthly Cost $5/mo

www.goto.com

Other

Costly

Execution 261ms

Transfer 2 KB

Monthly Cost $4/mo

Facebook Pixel

Advertising

Costly

Execution 209ms

Transfer 97 KB

Unused 33%

Monthly Cost $4/mo

js.qualified.com

Other

Costly

Execution 207ms

Transfer 97 KB

Unused 52%

Monthly Cost $4/mo

try.abtasty.com

Other

Optional

Execution 198ms

Transfer 48 KB

Unused 42%

Monthly Cost $3/mo

Facebook Pixel

Advertising

Optional

Execution 192ms

Transfer 46 KB

Monthly Cost $3/mo

www.goto.com

Other

Optional

Execution 141ms

Transfer 41 KB

Monthly Cost $2/mo

www.goto.com

Other

Optional

Execution 140ms

Transfer 179 KB

Unused 76%

Monthly Cost $2/mo

d.impactradius-event.com

Other

Optional

Execution 133ms

Transfer 20 KB

Monthly Cost $2/mo

www.goto.com

Other

Optional

Execution 85ms

Transfer 197 KB

Unused 67%

Monthly Cost $1/mo

www.redditstatic.com

Other

Optional

Execution 84ms

Transfer 19 KB

Monthly Cost $1/mo

OneTrust

Consent

Essential

Execution 75ms

Transfer 9 KB

Monthly Cost $1/mo

munchkin.marketo.net

Other

Optional

Execution 68ms

Transfer 1 KB

Monthly Cost $1/mo

LinkedIn Insight

Advertising

Optional

Execution 65ms

Transfer 19 KB

Monthly Cost $1/mo

Bing UET

Advertising

Optional

Execution 53ms

Transfer 15 KB

Monthly Cost $1/mo

These scripts may cost more than they're worth

www.goto.com adds 2324ms and costs ~$40/month
Unattributable adds 1785ms and costs ~$31/month
Google Tag Manager adds 1536ms and costs ~$27/month
www.goto.com adds 981ms and costs ~$17/month
www.goto.com adds 592ms and costs ~$10/month
js.qualified.com adds 586ms and costs ~$10/month
Google Tag Manager adds 492ms and costs ~$9/month
www.goto.com adds 452ms and costs ~$8/month
Google Tag Manager adds 408ms and costs ~$7/month
Google Tag Manager adds 320ms and costs ~$6/month
j.6sc.co adds 299ms and costs ~$5/month
www.goto.com adds 261ms and costs ~$4/month
Facebook Pixel adds 209ms and costs ~$4/month
js.qualified.com adds 207ms and costs ~$4/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

www.goto.com takes 2324ms 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 1785ms 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

Google Tag Manager takes 1536ms 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

www.goto.com takes 981ms 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

www.goto.com takes 592ms 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

js.qualified.com takes 586ms 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

Google Tag Manager takes 492ms 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

www.goto.com takes 452ms 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

53% of OneTrust'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

Google Tag Manager takes 408ms 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

Google Tag Manager takes 320ms 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

j.6sc.co takes 299ms 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

www.goto.com takes 261ms 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

Facebook Pixel takes 209ms 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

js.qualified.com takes 207ms 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 js.qualified.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

76% of www.goto.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

67% of www.goto.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.