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https://www.airtable.com

Performance

· 14 checks — Lighthouse + waterfall + sustainability rolled into one auditable list.
SCORE
72
GRADE
C
FIX
3
REVIEW
4
PASS
5
INFO
2

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

Mobile Desktop
75
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
88
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
77
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.

1.20 s

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

2.26 s

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

134 ms

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

0.072

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

3.35 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.

5.54 s

Page Load Progression

644 ms
1.3 s
1.9 s
2.6 s
3.2 s
3.9 s
4.5 s
5.2 s
Checks
14
5 PASS 4 REVIEW 3 FIX
F
Page Weight Budget
Action
8.9 MB transferred, 120 requests
FIX
8.9 MB transferred, 120 requests
Critical::
Page weighs 16.5 MB (8.9 MB transferred)
Warning::
Images are 2.9 MB — compress or use modern formats
Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.
Got: 2.9 MB
Warning::
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
Info::
Fonts are 454 KB — consider subsetting or using system fonts
Subset fonts to include only used characters, or switch to system font stacks.
Got: 454 KB
Warning::
120 HTTP requests — consider bundling or reducing
Each request adds latency. Bundle small files, use sprites, or eliminate unnecessary requests.
Info::
Estimated 1.9 g CO2 per page load
8.9 MB / 2.4 MB budget
8.9 MB transferred
120 requests
1.9 g CO2 per page load
Images 2.9 MiB 33%
Other 2.7 MiB 30%
JavaScript 2.6 MiB 29%
Fonts 454.2 KiB 5%
CSS 163.3 KiB 2%
HTML 58.8 KiB 1%
Other 42.6 KiB 0%
Other 3.8 KiB 0%
Other 3.1 KiB 0%
0 2.4 MB 4.9 MB
Over budget

Convert images to WebP/AVIF and resize to display dimensions to reduce transfer size.

Why this matters

Image bandwidth is high — modern formats (WebP/AVIF) and resizing typically cut it 50%+.

Source: web.dev

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

D
Third-Party Impact
Action
74% third-party, 0 ms blocking
FIX
74% third-party, 0 ms blocking
Warning::
Third-party code accounts for 74% of page weight (6.5 MiB of 8.9 MiB)
Info::
Third-party blocking time is low (0 ms)
26%
74%
First-party Third-party
F
JS Bundles
Action
53 scripts, 1.4 MB unused
FIX
53 scripts, 1.4 MB unused
Warning::
https://www.airtable.com/_next/static/chunks/bd100...: 526 KB unused (79%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.airtable.com/_next/static/chunks/41bce...: 131 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.airtable.com/_next/static/chunks/712d7...: 130 KB unused (100%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://www.airtable.com/_next/static/chunks/21617...: 109 KB unused (83%)
Consider code splitting or tree shaking to reduce unused code.
Warning::
https://cookie-cdn.cookiepro.com/scripttemplates/2...: 74 KB unused (60%)
Consider code splitting or tree shaking to reduce unused code.
Info::
Total unused JavaScript: 1.4 MB
1408 KB unused JavaScript

Downloaded but never executed on this page.

ScriptSizeUnusedMinifiedParty
https://www.airtable.com/_next/static/chunks/bd1001c5f3e89735.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu664 KB526 KB (79%)✓1st
https://www.airtable.com/_next/static/chunks/41bcea1936d1b7cb.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu132 KB131 KB (100%)✓1st
https://www.airtable.com/_next/static/chunks/712d7bdc5166c86b.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu131 KB130 KB (100%)✓1st
https://www.airtable.com/_next/static/chunks/216171430aeb734b.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu132 KB109 KB (83%)✓1st
https://cookie-cdn.cookiepro.com/scripttemplates/202511.1.0/otBannerSdk.js125 KB74 KB (60%)✓3rd
https://www.googletagmanager.com/gtag/js?id=AW-1020373621&cx=c&gtm=4e6461h2144 KB65 KB (45%)✓3rd
https://www.googletagmanager.com/gtm.js?id=GTM-NCLXNTS172 KB65 KB (38%)✓3rd
https://www.airtable.com/_next/static/chunks/94f43d537ec108cf.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu81 KB65 KB (91%)✓1st
https://www.googletagmanager.com/gtag/js?id=AW-16698155605&cx=c&gtm=4e6461h2168 KB63 KB (37%)✓3rd
https://www.airtable.com/_next/static/chunks/eb66c26139185530.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu89 KB60 KB (68%)✓1st

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

B
Image Optimization
26 images, 0 KB saveable
REVIEW
26 images, 0 KB saveable
Info::
All images are well-optimized
26 images 2.9 MB
0 oversized -0 KB
19 legacy format
0 missing dimensions CLS risk
C
JS Execution Cost
Action
1803ms total JS execution
REVIEW
1803ms total JS execution
Warning::
https://www.airtable.com/_next/static/chunks/bd100...: 363ms CPU time
Warning::
Unattributable: 350ms CPU time
Warning::
https://www.airtable.com/: 291ms CPU time
Warning::
https://www.airtable.com/_next/static/chunks/02594...: 265ms CPU time
Info::
https://www.googletagmanager.com/gtm.js?id=GTM-NCL...: 175ms CPU time
Info::
Third-party scripts: 675ms (37% of total)

Main Thread Breakdown

Script Evaluation 44% Other 27% Style & Layout 11% Script Parsing & Compilation 9% Rendering 4% Parse HTML & CSS 3%
ScriptTotalScriptingParse/CompileParty
https://www.airtable.com/_next/static/chunks/bd1001c5f3e89735.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu363ms66ms37ms1st
Unattributable350ms45ms0ms3rd
https://www.airtable.com/291ms6ms1ms1st
https://www.airtable.com/_next/static/chunks/025945c9af47bc0c.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu265ms228ms4ms1st
https://www.googletagmanager.com/gtm.js?id=GTM-NCLXNTS175ms146ms25ms3rd
https://www.airtable.com/_next/static/chunks/turbopack-d9509d892eb10b4f.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu128ms123ms0ms1st
https://www.googletagmanager.com/gtag/js?id=AW-16698155605&cx=c&gtm=4e6461h299ms88ms10ms3rd
https://www.airtable.com/_next/static/chunks/turbopack-3cf1c88b3ab4a4fd.js?dpl=dpl_AoNDcemAgxit8yEyauh6cSBizDSu80ms80ms0ms1st
https://cookie-cdn.cookiepro.com/scripttemplates/202511.1.0/otBannerSdk.js50ms30ms12ms3rd
C
Green Hosting
Action
Whether the site is served from green-energy infrastructure
REVIEW

Green Hosting

No green hosting detected

B
HTTP Caching
public, max-age=0, must-revalidate
REVIEW
public, max-age=0, must-revalidate
Info::
Cache-Control header is set
Got: public, max-age=0, must-revalidate
Info::
ETag present — enables conditional (304) responses
Cache-Control

public, max-age=0, must-revalidate

DirectiveValueMeaning
public—Any cache may store this response
max-age0Cache 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
Info::
All text resources are compressed
All text resources are properly compressed.
A+
Font Loading
10 fonts (454 KB)
PASS
10 fonts (454 KB)
Info::
10 font(s) use font-display: swap (FOUT risk but functional)

Web fonts

10

454 KB total

Render-blocking

0

of 10

Dominant font-display

swap

Most common across fonts

Font loading timeline
Transfer FOIT (block) FOUT (swap)
0 ms 500 ms 1.0 s 1.5 s 2.0 s FCP 1.2 s LCP 2.3 shttps://static.airtable.com/font/NeueHaasGrotTextRound-55Roman-Web.woff2NeueHaasGrotTextRound-5... https://static.airtable.com/font/NeueHaasGrotTextRound-55Roman-Web.woff2 — 30.0 KiB — 0 ms — font-display: swaphttps://static.airtable.com/font/NeueHaasGrotTextRound-65Medium-Web.woff2NeueHaasGrotTextRound-6... https://static.airtable.com/font/NeueHaasGrotTextRound-65Medium-Web.woff2 — 43.4 KiB — 0 ms — font-display: swaphttps://static.airtable.com/font/NeueHaasGrotTextRound-75Bold-Web.woff2NeueHaasGrotTextRound-7... https://static.airtable.com/font/NeueHaasGrotTextRound-75Bold-Web.woff2 — 31.2 KiB — 0 ms — font-display: swaphttps://www.airtable.com/_next/static/media/Haas_Grot_Disp_R_35_Thin-s.p.51964a86.otfHaas_Grot_Disp_R_35_Thi... https://www.airtable.com/_next/static/media/Haas_Grot_Disp_R_35_Thin-s.p.51964a86.otf — 51.0 KiB — 0 ms — font-display: swaphttps://www.airtable.com/_next/static/media/Haas_Grot_Disp_R_55_Roman-s.p.2ad8a328.otfHaas_Grot_Disp_R_55_Rom... https://www.airtable.com/_next/static/media/Haas_Grot_Disp_R_55_Roman-s.p.2ad8a328.otf — 50.3 KiB — 0 ms — font-display: swaphttps://www.airtable.com/_next/static/media/Haas_Grot_Text_R_65_Medium-s.p.8e7a3d8e.otfHaas_Grot_Text_R_65_Med... https://www.airtable.com/_next/static/media/Haas_Grot_Text_R_65_Medium-s.p.8e7a3d8e.otf — 55.8 KiB — 0 ms — font-display: swaphttps://www.airtable.com/_next/static/media/Haas_Grot_Disp_R_95_Black-s.p.2b26d868.otfHaas_Grot_Disp_R_95_Bla... https://www.airtable.com/_next/static/media/Haas_Grot_Disp_R_95_Black-s.p.2b26d868.otf — 52.8 KiB — 0 ms — font-display: swaphttps://www.airtable.com/_next/static/media/Haas_Grot_Text_R_75_Bold-s.p.28bb652e.otfHaas_Grot_Text_R_75_Bol... https://www.airtable.com/_next/static/media/Haas_Grot_Text_R_75_Bold-s.p.28bb652e.otf — 54.2 KiB — 0 ms — font-display: swaphttps://static.airtable.com/font/Haas-Grot-Disp-R-55-Roman.woff2Haas-Grot-Disp-R-55-Rom... https://static.airtable.com/font/Haas-Grot-Disp-R-55-Roman.woff2 — 40.3 KiB — 0 ms — font-display: swaphttps://static.airtable.com/font/Haas-Grot-Text-R-65-Medium.woff2Haas-Grot-Text-R-65-Med... https://static.airtable.com/font/Haas-Grot-Text-R-65-Medium.woff2 — 45.1 KiB — 0 ms — font-display: swap
NeueHaasGrotTextRound-5... woff2 swap
Size 30 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
NeueHaasGrotTextRound-6... woff2 swap
Size 43 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
NeueHaasGrotTextRound-7... woff2 swap
Size 31 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Haas_Grot_Disp_R_35_Thi... otf swap
Size 51 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Haas_Grot_Disp_R_55_Rom... otf swap
Size 50 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Haas_Grot_Text_R_65_Med... otf swap
Size 56 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Haas_Grot_Disp_R_95_Bla... otf swap
Size 53 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Haas_Grot_Text_R_75_Bol... otf swap
Size 54 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
  • Convert to woff2 for ~30% smaller file size
Haas-Grot-Disp-R-55-Rom... woff2 swap
Size 40 KB
Load time 0 ms
Start 0 ms
Risk FOUT — text flashes from fallback to web font
Haas-Grot-Text-R-65-Med... woff2 swap
Size 45 KB
Load time 0 ms
Start 0 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)

Fixing the unchecked items could save ~79 KB and ~158 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
No optimization needed
PASS
No optimization needed
Info::
No resource hint issues
Network Waterfall
120 requests over 0ms
INFO

Performance analysis not available for this result.

Third-Party Script Cost
Per-script blocking time, transfer cost, and cache headers
INFO
37% of JavaScript execution is third-party
First-party Third-party 675ms · 465KB · €7/mo
Unattributable
Other
Costly
Execution 350ms
Transfer 0 KB
Monthly Cost €4/mo
Google Tag Manager
Tag Manager
Optional
Execution 175ms
Transfer 172 KB
Unused 38%
Monthly Cost €2/mo
Google Tag Manager
Tag Manager
Optional
Execution 99ms
Transfer 168 KB
Unused 37%
Monthly Cost €1/mo
cookie-cdn.cookiepro.com
Other
Optional
Execution 50ms
Transfer 125 KB
Unused 60%
Monthly Cost €1/mo

These scripts may cost more than they're worth

  • Unattributable adds 350ms and costs ~€4/month

Unattributable takes 350ms 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

60% of cookie-cdn.cookiepro.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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