Performance
· 17 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.Performance-focused optimization plan with CWV assessment, top offenders, and time estimates
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
3.83 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
5.18 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.81 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
5.36 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.
23.35 s
Page Load Progression
FPage Weight BudgetAction2.9 MB transferred, 95 requestsFIX
Large JavaScript bundles delay interactivity. Split code by route or defer non-critical scripts.
JavaScript bundle is large — code-split routes and lazy-load off-screen components to defer.
Source: web.dev
DThird-Party ImpactAction100% third-party, 0 ms blockingFIX
FJS Execution CostAction7377ms total JS executionFIX
Main Thread Breakdown
| Script | Total | Scripting | Parse/Compile | Party |
|---|---|---|---|---|
| Unattributable | 979ms | 140ms | 0ms | 3rd |
| https://www.thespruceeats.com/ | 911ms | 93ms | 31ms | 3rd |
| https://www.thespruceeats.com/static/8.172.0/cache/eNp9U1FuwyAMvdBYzrBJ074mTVsuQMBJ3BAcYZOqPf0g2toko_kAAe_xsJ9NxaIFTTVqLw6qE1cStIGnantuaJzIgxeunL5QlMw8sTI9mGFPTpAjbcEWAEM0IHABiYIOpYy1Xh3BlsZDPKc0oO8OSTN4S6GSPpCkowcyoLTlh5g5zwVsTAvVBNDDRJgsvFFyZkT2MCynrxfGKySvybfY7SkOG97y0hMQGIwg-YM6Gg7tMpUi1pem5MCkO1AzwvlAt5NxKbRDM6g_50taseHY3AGy0cGSylf9mscjaNFMi7cZ1mauWNr-mqX0hNtdiV6wf631ARLQcJ2fhVDkxMVs1TqisN-WLnw7Kkf-_lnnUYJEhw4kdzHrFhyylFhstg16RwIkvyLU-4qsSpduZmY3SVmgDcC9bhy8_P8Dtz7k5-hnQNenn84_peCkgQ.min.js | 851ms | 602ms | 22ms | 3rd |
| https://ssl.p.jwpcdn.com/player/v/8.47.0/provider.hlsjs.js | 540ms | 349ms | 72ms | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5P3SZGS | 446ms | 361ms | 66ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-NV5T7HZH3M&cx=c>m=4e64k0 | 400ms | 327ms | 70ms | 3rd |
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 373ms | 284ms | 78ms | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DK3GDWHWJH&cx=c>m=4e64k0 | 355ms | 287ms | 65ms | 3rd |
| https://imasdk.googleapis.com/js/sdkloader/ima3.js | 313ms | 240ms | 65ms | 3rd |
| https://www.thespruceeats.com/static/8.172.0/static/cache/eNqllsFu2zAMhl9oQdAAfYCszYYAK9ol2e6yxLhsZFGgKCfe04_OumGXAaF2SmzzEymS-qllESfolwOFGqEsu5rC_PtWlpmhw6B_AhZ5f1p4YviwvBVyMdJ57QVHFIRiAKWsk4uTGpd1cFmAb4c9pQRetmE_FYHBADIKkJ0L0NW-x9TfjvSQgNG3bxJd2Ul4YRoxmLhw_x9Ow709OxpfEpTpC6aTnY44wjaJLmFns0NuoLQu8CkSsaFhc-3eaxHsHlnC09XmdqSsygGKmHquvDpuCa9iWDVQCY_Y5K6AVs2gFTknuNTyEYO9oS8tlBZ7mC1bWK4dqkC1oCKhCWPMESIepYWmDKktSdenPfAI3ML715pOxnkzIpwzsRikO4llPoAajrBgSCq6wAt9naObDM3arL0Ff8A3wWgQpT6LkdCjfrfBYCNWNuJvRTfkvrJm3U_GDQkOQFW-VqiGPqLuTS8Qn6tjQ4SBBofpWduddQwcaEckj9d3bVK7v8q18cDcbn6C6UxsKdxvoTWWwDuBnng6sEslKkPpSZcyjS6Z2SPx8OLYDdYIVBG6B0paGdOJ60i_aJgPEbVZd9oRBvUD9nOHp-8qSZabpIvGzeWubC56mormtdim7H5K3lrMX3dr9bVNRzK443_s64_l5gK-zgv_BIqt0Ss.js | 301ms | 240ms | 59ms | 3rd |
Showing top 10 of 22 scripts
FJS BundlesAction35 scripts, 1003 KB unusedFIX
Downloaded but never executed on this page.
| Script | Size | Unused | Minified | Party |
|---|---|---|---|---|
| https://securepubads.g.doubleclick.net/pagead/managed/js/gpt/m202604170101/pubads_impl.js?cb=31097946 | 187 KB | 132 KB (71%) | ✓ | 3rd |
| https://ssl.p.jwpcdn.com/player/v/8.47.0/provider.hlsjs.js | 139 KB | 118 KB (85%) | ✓ | 3rd |
| https://imasdk.googleapis.com/js/sdkloader/ima3.js | 147 KB | 98 KB (67%) | ✓ | 3rd |
| https://www.thespruceeats.com/static/8.172.0/static/cache/eNqllsFu2zAMhl9oQdAAfYCszYYAK9ol2e6yxLhsZFGgKCfe04_OumGXAaF2SmzzEymS-qllESfolwOFGqEsu5rC_PtWlpmhw6B_AhZ5f1p4YviwvBVyMdJ57QVHFIRiAKWsk4uTGpd1cFmAb4c9pQRetmE_FYHBADIKkJ0L0NW-x9TfjvSQgNG3bxJd2Ul4YRoxmLhw_x9Ow709OxpfEpTpC6aTnY44wjaJLmFns0NuoLQu8CkSsaFhc-3eaxHsHlnC09XmdqSsygGKmHquvDpuCa9iWDVQCY_Y5K6AVs2gFTknuNTyEYO9oS8tlBZ7mC1bWK4dqkC1oCKhCWPMESIepYWmDKktSdenPfAI3ML715pOxnkzIpwzsRikO4llPoAajrBgSCq6wAt9naObDM3arL0Ff8A3wWgQpT6LkdCjfrfBYCNWNuJvRTfkvrJm3U_GDQkOQFW-VqiGPqLuTS8Qn6tjQ4SBBofpWduddQwcaEckj9d3bVK7v8q18cDcbn6C6UxsKdxvoTWWwDuBnng6sEslKkPpSZcyjS6Z2SPx8OLYDdYIVBG6B0paGdOJ60i_aJgPEbVZd9oRBvUD9nOHp-8qSZabpIvGzeWubC56mormtdim7H5K3lrMX3dr9bVNRzK443_s64_l5gK-zgv_BIqt0Ss.js | 149 KB | 97 KB (65%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-WT6XGWDH>m=4e64k0 | 123 KB | 63 KB (51%) | ✓ | 3rd |
| https://openads-cdn.adsrvr.org/openadsjs/build/v1.0/dotdash/openads-20260304T232958Z.js | 97 KB | 63 KB (64%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-DK3GDWHWJH&cx=c>m=4e64k0 | 151 KB | 62 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtag/js?id=G-NV5T7HZH3M&cx=c>m=4e64k0 | 150 KB | 62 KB (41%) | ✓ | 3rd |
| https://www.googletagmanager.com/gtm.js?id=GTM-5P3SZGS | 139 KB | 58 KB (42%) | ✓ | 3rd |
| https://c.amazon-adsystem.com/aax2/apstag.js | 91 KB | 58 KB (64%) | ✓ | 3rd |
Consider code splitting or tree shaking to reduce unused code.
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.
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.
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.
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.
This bundle has high unused code — code-split or tree-shake to ship only what executes.
Source: web.dev / Lighthouse coverage
FPage Weight InventoryAction95 resources · 2.9 MB · 1003 KB savings availableFIX
~1003.5 KiB of savings available
| # | Resource | Type | Size | Cache | Unused | 3rd party | Issues |
|---|---|---|---|---|---|---|---|
| — | — | ||||||
| 95 resources | 2.9 MiB | ||||||
FHTTP CachingActionNo cache headersFIX
No Cache-Control header
Adding a Cache-Control header can significantly improve repeat-visit performance.
BImage Optimization11 images, 0 KB saveableREVIEW
A+Text CompressionAll text resources are compressedPASS
A+Font Loading3 fonts (89 KB)PASS
Web fonts
3
89 KB total
Render-blocking
0
of 3
Dominant font-display
swap
Most common across fonts
Font loading timeline
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 CachingAll resources properly cachedPASS
A+Critical Rendering PathNo render-blocking resourcesPASS
A+Resource HintsNo optimization neededPASS
A+Render-Blocking ResourcesNo render-blocking resources detectedPASS
A+Third-Party ResourcesNo third-party resources detectedPASS
A+Green HostingWhether the site is served from green-energy infrastructurePASS
Green Hosting
This site is hosted on green energy infrastructure
Provider: Cloudflare
Network Waterfall95 requests over 3249msINFO
Third-Party Script CostPer-script blocking time, transfer cost, and cache headersINFO
| Script | Category | Execution | Transfer | Unused | Monthly Cost | Verdict |
|---|---|---|---|---|---|---|
Unattributable Unattributable | Other | 979ms | 0 KB | — | $13/mo | Costly |
www.thespruceeats.com www.thespruceeats.com | Other | 911ms | 77 KB | — | $12/mo | Costly |
www.thespruceeats.com www.thespruceeats.com | Other | 851ms | 45 KB | 55% | $11/mo | Costly |
ssl.p.jwpcdn.com ssl.p.jwpcdn.com | Other | 540ms | 139 KB | 85% | $7/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 446ms | 139 KB | 42% | $6/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 400ms | 150 KB | 41% | $5/mo | Costly |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 373ms | 187 KB | 71% | $5/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 355ms | 151 KB | 41% | $5/mo | Costly |
imasdk.googleapis.com imasdk.googleapis.com | Other | 313ms | 147 KB | 67% | $4/mo | Costly |
www.thespruceeats.com www.thespruceeats.com | Other | 301ms | 149 KB | 65% | $4/mo | Costly |
openads-cdn.adsrvr.org openads-cdn.adsrvr.org | Other | 270ms | 97 KB | 64% | $4/mo | Costly |
www.thespruceeats.com www.thespruceeats.com | Other | 256ms | 67 KB | 65% | $3/mo | Costly |
Google Tag Manager www.googletagmanager.com | Tag Manager | 227ms | 123 KB | 51% | $3/mo | Costly |
cdn.id5-sync.com cdn.id5-sync.com | Other | 176ms | 30 KB | 92% | $2/mo | Optional |
c.amazon-adsystem.com c.amazon-adsystem.com | Other | 174ms | 91 KB | 64% | $2/mo | Optional |
ssl.p.jwpcdn.com ssl.p.jwpcdn.com | Other | 143ms | 99 KB | 25% | $2/mo | Optional |
b-code.liadm.com b-code.liadm.com | Other | 140ms | 46 KB | 52% | $2/mo | Optional |
content.jwplatform.com content.jwplatform.com | Other | 139ms | 65 KB | 34% | $2/mo | Optional |
pagead2.googlesyndication.com pagead2.googlesyndication.com | Other | 121ms | 15 KB | — | $2/mo | Optional |
securepubads.g.doubleclick.net securepubads.g.doubleclick.net | Other | 110ms | 34 KB | — | $1/mo | Optional |
www.thespruceeats.com www.thespruceeats.com | Other | 80ms | 37 KB | 76% | $1/mo | Optional |
static.criteo.net static.criteo.net | Other | 72ms | 15 KB | — | $1/mo | Optional |
These scripts may cost more than they're worth
- Unattributable adds 979ms and costs ~$13/month
- www.thespruceeats.com adds 911ms and costs ~$12/month
- www.thespruceeats.com adds 851ms and costs ~$11/month
- ssl.p.jwpcdn.com adds 540ms and costs ~$7/month
- Google Tag Manager adds 446ms and costs ~$6/month
- Google Tag Manager adds 400ms and costs ~$5/month
- securepubads.g.doubleclick.net adds 373ms and costs ~$5/month
- Google Tag Manager adds 355ms and costs ~$5/month
- imasdk.googleapis.com adds 313ms and costs ~$4/month
- www.thespruceeats.com adds 301ms and costs ~$4/month
- openads-cdn.adsrvr.org adds 270ms and costs ~$4/month
- www.thespruceeats.com adds 256ms and costs ~$3/month
- Google Tag Manager adds 227ms and costs ~$3/month
100% of JavaScript execution time is spent on third-party scripts. Consider auditing which scripts are essential.
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
Unattributable takes 979ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.thespruceeats.com takes 911ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
www.thespruceeats.com takes 851ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
55% of www.thespruceeats.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
ssl.p.jwpcdn.com takes 540ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
85% of ssl.p.jwpcdn.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Google Tag Manager takes 446ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
Google Tag Manager takes 400ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
securepubads.g.doubleclick.net takes 373ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
71% of securepubads.g.doubleclick.net's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Google Tag Manager takes 355ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
imasdk.googleapis.com takes 313ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
67% of imasdk.googleapis.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
www.thespruceeats.com takes 301ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
65% of www.thespruceeats.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
openads-cdn.adsrvr.org takes 270ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
64% of openads-cdn.adsrvr.org's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
www.thespruceeats.com takes 256ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
65% of www.thespruceeats.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
Google Tag Manager takes 227ms of CPU time. Consider loading it asynchronously or replacing it with a lighter alternative.
This script has high main-thread execution time — optimize hot paths or defer.
Source: web.dev
51% of Google Tag Manager's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
92% of cdn.id5-sync.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
64% of c.amazon-adsystem.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
52% of b-code.liadm.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev
76% of www.thespruceeats.com's code is unused. The script may be loading features you don't use.
Bundle has high unused-code ratio — tree-shaking and route-splitting recover the wasted bytes.
Source: web.dev