Skip to content
Audit Complete

Results for https://www.cal.com

Visit site
Netherlands Netherlands · Amsterdam Completed: Apr 7, 2026 20:42 UTC

Mobile 375 × 812

Screenshot of the audited page (Mobile 375×812)

Desktop 1440 × 900

Screenshot of the audited page (Desktop 1440×900)
C76

Site Health

Score: 76 / 100

Based on 8 categories, 0 sections

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

Top Priorities (5)

1

Content-Security-Policy header is missing

Security › Security Headers
2

No Content-Security-Policy header found

Security › Content Security Policy
3

19 image-only link(s) without alt text

Accessibility › Link & Button Quality
4

2 image(s) missing alt attribute

Accessibility › Alt Text Quality
5

2 link(s) with no accessible text

Accessibility › Link & Button Quality
BeaverCheck badge
Embed this badge
[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fwww.cal.com)](https://beavercheck.com/results/8e8961d3-93ce-b633-1c10-e731a1ce4d8a)
<a href="https://beavercheck.com/results/8e8961d3-93ce-b633-1c10-e731a1ce4d8a"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fwww.cal.com" alt="BeaverCheck Score"></a>
https://beavercheck.com/badge?url=https%3A%2F%2Fwww.cal.com

This badge auto-updates with your latest scan result.

Was this report useful?

Thanks for your feedback!

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

40
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
86
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience.

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

3.94 s

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

6.27 s

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

1.69 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.

5.03 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.

13.71 s

Detailed Report

Audit breakdown by category with detailed findings.

40

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:71.028 source:map[column:60580 line:1 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:39.253 source:map[column:11694 line:8 type:source-location url:https://framerusercontent.com/sites/3nD48sbvLWIxKbF7A73bty/motion.CBTXMTcY.mjs urlProvider:network]] map[reflowTime:133.162 source:map[column:126857 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:3.271 source:map[column:101359 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:5.383 source:map[column:135431 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:79.461 source:map[column:68538 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:0.62 source:map[column:68333 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:2.49 source:map[column:72641 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:3.288 source:map[column:81666 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:3.369 source:map[column:72281 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]]]

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

URLResource SizeEst Savings
div.framer-17o7yke > div.framer-ypgap4 > div > img div.framer-17o7yke > div.framer-ypgap4 > div > img
/images/3gwUUSoHutYvSzmTskTjdDcOuM.jpeg?width=500&height=50048.9 KiB48.1 KiB
div.framer-17o7yke > div.framer-ypgap4 > div > img div.framer-17o7yke > div.framer-ypgap4 > div > img
/images/5KklQVfPBoD0Xf3cuy1WcGxCw.webp?width=800&height=8...23.5 KiB23.1 KiB
div.framer-1w289s2 > div.framer-1vjwgau > div > img div.framer-1w289s2 > div.framer-1vjwgau > div > img
/images/AUafj9wkmgBuXBrhusy3dfwSXK4.png?width=400&height=40015.2 KiB15.1 KiB
div.framer-17o7yke > div.framer-ypgap4 > div > img div.framer-17o7yke > div.framer-ypgap4 > div > img
/images/nvWtgbT6qL0jMPgV8XT3qW53Kxg.png?width=460&height=46014.6 KiB14.3 KiB
davidvkimball avatar div.sj-endorser-view-container > div.sj-avatar-container > div.sj-avatar-container > img.svelte-1dfnct6
user-images.trustpilot.com/64ecc20e24b3c30012b87b22/73x73.png15.1 KiB14.3 KiB
div.framer-17o7yke > div.framer-ypgap4 > div > img div.framer-17o7yke > div.framer-ypgap4 > div > img
framerusercontent.com/images/H1nRvSAv2H8JOWnvWasdY8GfJk.png?width=400&height=40013.5 KiB13.1 KiB
Jean-Philippe Allard avatar div.sj-endorser-view-container > div.sj-avatar-container > div.sj-avatar-container > img.svelte-1dfnct6
user-images.trustpilot.com/641b13ae9dff130013b50662/73x73.png11.4 KiB10.5 KiB
Deyson avatar div.sj-endorser-view-container > div.sj-avatar-container > div.sj-avatar-container > img.svelte-1dfnct6
user-images.trustpilot.com/65b7cb1f7a195f001273bc08/73x73.png10.8 KiB10.0 KiB
div.framer-dsdj68 > div.framer-zo6wiq > div > img div.framer-dsdj68 > div.framer-zo6wiq > div > img
framerusercontent.com/images/1bvk9THj74PqBkpBJDHFbQS9om4.png?width=64&height=969.0 KiB8.6 KiB
div.framer-7rgzek > div.framer-8j0o2v > div > img div.framer-7rgzek > div.framer-8j0o2v > div > img
/images/yNOr346oZ3AwtMp7pwd8MHbUeb0.png?width=512&height=4775.1 KiB5.1 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Estimated savings: 817 ms
URLTime Spent
www.cal.com/817 ms
cal.com/0.0 ms

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Diagnostics

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

CategoryTime Spent
Script Evaluation9.3 s
Other3.6 s
Style & Layout3.4 s
Rendering832 ms
Parse HTML & CSS683 ms
Garbage Collection465 ms
Script Parsing & Compilation147 ms

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

More information about the performance of your application. These numbers don't directly affect the Performance score.

Layout shift culprits
Optimize DOM size
LCP breakdown
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Minify CSS
Minify JavaScript
Avoids enormous network payloads Total size was 1,720 KiB
User Timing marks and measures 34 user timings
Avoid long main-thread tasks 20 long tasks found
Image elements have explicit `width` and `height`
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 10 ms
Server Backend Latencies 200 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 100 ms
Avoid large layout shifts 4 layout shifts found
INP breakdown
LCP request discovery
Avoid non-composited animations
86

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Failing Elements
A fully customizable scheduling software for individuals, businesses taking cal… div.framer-1fnjwyn > div.framer-1k7aq35 > div.framer-11y1rys > p.framer-text
No credit card required div.framer-1fnjwyn > div.framer-1yyuayk > div.framer-2b9066 > p.framer-text
Isabella Valce div.framer-orob5l-container > div.framer-EjjaP > div.framer-hw592q > p.framer-text
Capture your special moments with our professional photography services today. div.framer-1h5lhgp > div.framer-14k9084 > div.framer-cxfwa4 > p.framer-text
15m div.framer-5btwhh-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
30m div.framer-kkkki0-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
45m div.framer-1yc9ez4-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
Rock Wall Woods div.framer-1uh83 > div.framer-1t6rkik > div.framer-dui3q2 > p.framer-text
South America/Rio de Janeiro div.framer-15vupj9 > div.framer-1mw7irz > div.framer-jivfjv > p.framer-text
SUN div.framer-9s58fj > div.framer-1258ovq > div.framer-vq6d4j > p.framer-text
10 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
12 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
13 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
14 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
15 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
19 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
20 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
23 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
26 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
30 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
31 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
Trusted by fast-growing companies around the world div.framer-wu9mz7 > div.framer-3mjl56 > div.framer-re95um > p.framer-text
Effortless scheduling for business and individuals, powerful solutions for fast… div.framer-115yb0g > div.ssr-variant > div.framer-1jp3vgb > p.framer-text
01 div.framer-jqhjya > div.framer-wijmf6 > div.framer-1x0l8uf > p.framer-text
We'll handle all the cross-referencing, so you don't have to worry about double… div.framer-jqhjya > div.framer-bu0epp > div.framer-1025ovd > p.framer-text
02 div.framer-2oc917 > div.framer-1yjzd2n > div.framer-1fl9q8t > p.framer-text
Want to block off weekends? Set up any buffers? We make that easy. div.framer-2oc917 > div.framer-tqjb0v > div.framer-191s6uv > p.framer-text
03 div.framer-ley2a5 > div.framer-154gnp0 > div.framer-oad006 > p.framer-text
It could be a video chat, phone call, or a walk in the park! div.framer-ley2a5 > div.framer-umywzq > div.framer-9imk76 > p.framer-text
Discover a variety of our advanced features. Unlimited and free for individuals. div.framer-1sfylas > div.ssr-variant > div.framer-jhwn0d > p.framer-text
Only get booked when you want to. Set daily, weekly or monthly limits and add b… div.framer-l5bt33 > div.framer-15u4jlf > div.framer-1k01ma2 > p.framer-text
Cédric van Ravesteijn div.framer-wa00rr-container > div.framer-EjjaP > div.framer-hw592q > p.framer-text
Are you an agency, influencer, SaaS founder, or business looking to collaborate… div.framer-1w2wxbc > div.framer-1u1pvzv > div.framer-3nwhzq > p.framer-text
15m div.framer-5btwhh-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
45m div.framer-1yc9ez4-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
1h div.framer-123b598-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
Cal Video div.framer-1uh83 > div.framer-1t6rkik > div.framer-11zz41t > p.framer-text
Let your bookers overlay their calendar, receive booking confirmations via text… div.framer-pry2jb > div.framer-iqu71w > div.framer-17mqlpw > p.framer-text
24h div.framer-encily > div.framer-1qb6d8o > div.framer-1t8c82u > p.framer-text
Thu 07 div.framer-3yv7sl > div.framer-z1tgqc > div.framer-1p3uvja > p.framer-text
Fri 08 div.framer-3yv7sl > div.framer-1httwsa > div.framer-9d9c1t > p.framer-text
Sat 09 div.framer-3yv7sl > div.framer-8c4sqs > div.framer-3moh2p > p.framer-text
Sun 10 div.framer-3yv7sl > div.framer-s5k8ht > div.framer-yutkb2 > p.framer-text
Easily send sms or meeting reminder emails about bookings, and send automated f… div.framer-54l76e > div.framer-hnnpj > div.framer-1anmo6 > p.framer-text
Just now div.framer-12fbk53 > div.framer-1n0fy1h > div.framer-1hy18ib > p.framer-text
Our users are our best ambassadors. Discover why we're the top choice for sched… div.framer-anah9k > div.framer-1tskhsg > div.framer-pz421g > p.framer-text
Cal.com works with all apps already in your flow ensuring everything works perf… div.framer-sprgy > div.framer-szmb98 > div.framer-jutukm > p.framer-text
Read the impact we've had from those who matter most - our customers. div.framer-kaazze > div.ssr-variant > div.framer-1noi95h > p.framer-text
Trusted by fast-growing companies around the world div.framer-wu9mz7 > div.framer-3mjl56 > div.framer-re95um > p.framer-text
support@cal.com div.framer-12aw6q8 > div.framer-1jaoeul > p.framer-text > a.framer-text
cal.com/help div.framer-12aw6q8 > div.framer-1jaoeul > p.framer-text > a.framer-text

These are opportunities to improve the legibility of your content.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Failing Elements
div.framer-6c2yx > div.framer-12aw6q8 > div.framer-1yqdgut > a.framer-vp3foh div.framer-6c2yx > div.framer-12aw6q8 > div.framer-1yqdgut > a.framer-vp3foh
div.framer-6c2yx > div.framer-12aw6q8 > div.framer-1yqdgut > a.framer-10o4bl8 div.framer-6c2yx > div.framer-12aw6q8 > div.framer-1yqdgut > a.framer-10o4bl8

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Failing Elements
twitter div.sj-endorser-view-container > div.sj-avatar-container > div.sj-integration-floating-icon > a
@calcom div.sj-content > div > div > a

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Failing Elements
html.wf-inter-n4-active html.wf-inter-n4-active

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
Select elements have associated label elements.
ARIA attributes are used as specified for the element's role
`[aria-hidden="true"]` elements do not contain focusable descendents
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Heading elements appear in a sequentially-descending order
Identical links have the same purpose.
`[accesskey]` values are unique
`button`, `link`, and `menuitem` elements have accessible names
Deprecated ARIA roles were not used
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
`[role]`s have all required `[aria-*]` attributes
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
`[role]` values are valid
Elements with the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
The page contains a heading, skip link, or landmark region
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Definition list items are wrapped in `<dl>` elements
ARIA IDs are unique
No form fields have multiple labels
`<frame>` or `<iframe>` elements have a title
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
Form elements have associated labels
Links are distinguishable without relying on color.
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Skip links are focusable.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
Elements with visible text labels have matching accessible names.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
96

Best Practices

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

SourceDescription
Failed to load resource: the server responded with a status of 403 ()
Failed to load resource: the server responded with a status of 403 ()
cal.com/ line 805, col 0
Manifest fetch from https://api.jsonbin.io/v3/b/69739405ae596e708ff0394c?meta=false failed, code 403
Manifest fetch from https://api.jsonbin.io/v3/b/69739405ae596e708ff0394c?meta=false failed, code 403
Uses HTTPS
Avoids deprecated APIs
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate clickjacking with XFO or CSP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Structured data is valid
Page isn’t blocked from indexing
Document has a `<title>` element
Document has a meta description
Page has successful HTTP status code
Links have descriptive text
Links are crawlable
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

91
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
90
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
96
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.

Core Web Vitals

Key metrics that affect user experience. — Desktop

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

1.25 s

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

1.45 s

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

59 ms

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

0.011

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

1.48 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.

3.08 s

Detailed Report

Audit breakdown by category with detailed findings.

91

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

headings: [map[key:source label:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:81.159 source:map[column:71869 line:1 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:152.503 source:map[column:126857 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:3.264 source:map[column:101359 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:6.091 source:map[column:135431 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:91.498 source:map[column:68538 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:0.554 source:map[column:68333 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:2.544 source:map[column:72641 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:2.992 source:map[column:81666 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:3.264 source:map[column:72281 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:1.612 source:map[column:60725 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:23.861 source:map[column:60736 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]] map[reflowTime:0.33 source:map[column:239573 line:0 type:source-location url:https://widget.senja.io/widget/6a0c4b74-527a-4058-bded-8a358821c1a0/platform.js urlProvider:network]]]

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

URLResource SizeEst Savings
div.framer-17o7yke > div.framer-ypgap4 > div > img div.framer-17o7yke > div.framer-ypgap4 > div > img
/images/3gwUUSoHutYvSzmTskTjdDcOuM.jpeg?width=500&height=50048.9 KiB48.6 KiB
div.framer-17o7yke > div.framer-ypgap4 > div > img div.framer-17o7yke > div.framer-ypgap4 > div > img
/images/5KklQVfPBoD0Xf3cuy1WcGxCw.webp?width=800&height=8...23.5 KiB23.4 KiB
div.framer-1w289s2 > div.framer-1vjwgau > div > img div.framer-1w289s2 > div.framer-1vjwgau > div > img
/images/AUafj9wkmgBuXBrhusy3dfwSXK4.png?width=400&height=40015.2 KiB15.1 KiB
div.framer-17o7yke > div.framer-ypgap4 > div > img div.framer-17o7yke > div.framer-ypgap4 > div > img
/images/nvWtgbT6qL0jMPgV8XT3qW53Kxg.png?width=460&height=46014.6 KiB14.5 KiB
div.framer-17o7yke > div.framer-ypgap4 > div > img div.framer-17o7yke > div.framer-ypgap4 > div > img
framerusercontent.com/images/H1nRvSAv2H8JOWnvWasdY8GfJk.png?width=400&height=40013.5 KiB13.4 KiB
div.framer-17o7yke > div.framer-ypgap4 > div > img div.framer-17o7yke > div.framer-ypgap4 > div > img
/images/IyzG5rqwPLXV8NNtFwgckXyntTA.png?width=321&height=3219.1 KiB8.9 KiB
div.framer-dsdj68 > div.framer-zo6wiq > div > img div.framer-dsdj68 > div.framer-zo6wiq > div > img
framerusercontent.com/images/1bvk9THj74PqBkpBJDHFbQS9om4.png?width=64&height=969.0 KiB8.9 KiB
div.framer-7rgzek > div.framer-8j0o2v > div > img div.framer-7rgzek > div.framer-8j0o2v > div > img
/images/yNOr346oZ3AwtMp7pwd8MHbUeb0.png?width=512&height=4775.1 KiB5.1 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

Estimated savings: 258 ms
URLTime Spent
www.cal.com/258 ms
cal.com/0.0 ms

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

TTI

Diagnostics

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

CategoryTime Spent
Script Evaluation2.3 s
Other1.2 s
Style & Layout804 ms
Parse HTML & CSS247 ms
Rendering184 ms
Garbage Collection104 ms
Script Parsing & Compilation40 ms

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

More information about the performance of your application. These numbers don't directly affect the Performance score.

Max Potential First Input Delay 120 ms
Layout shift culprits
Optimize DOM size
LCP breakdown
Modern HTTP
Render blocking requests
Optimize viewport for mobile
Minify CSS
Minify JavaScript
Avoids enormous network payloads Total size was 1,947 KiB
User Timing marks and measures 34 user timings
Avoid long main-thread tasks 4 long tasks found
Image elements have explicit `width` and `height`
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 10 ms
Server Backend Latencies 210 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 40 ms
Avoid large layout shifts 4 layout shifts found
INP breakdown
LCP request discovery
Avoid non-composited animations
90

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Failing Elements
A fully customizable scheduling software for individuals, businesses taking cal… div.framer-1fnjwyn > div.framer-1k7aq35 > div.framer-11y1rys > p.framer-text
No credit card required div.framer-1fnjwyn > div.framer-1yyuayk > div.framer-2b9066 > p.framer-text
Isabella Valce div.framer-orob5l-container > div.framer-EjjaP > div.framer-hw592q > p.framer-text
Capture your special moments with our professional photography services today. div.framer-1h5lhgp > div.framer-14k9084 > div.framer-cxfwa4 > p.framer-text
15m div.framer-5btwhh-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
30m div.framer-kkkki0-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
45m div.framer-1yc9ez4-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
Rock Wall Woods div.framer-1uh83 > div.framer-1t6rkik > div.framer-dui3q2 > p.framer-text
South America/Rio de Janeiro div.framer-15vupj9 > div.framer-1mw7irz > div.framer-jivfjv > p.framer-text
SUN div.framer-9s58fj > div.framer-1258ovq > div.framer-vq6d4j > p.framer-text
12 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
13 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
14 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
15 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
19 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
20 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
26 div.framer-k4oXa > div.framer-156kf12 > div.framer-1nq3hi > p.framer-text
Trusted by fast-growing companies around the world div.framer-wu9mz7 > div.framer-3mjl56 > div.framer-re95um > p.framer-text
Effortless scheduling for business and individuals, powerful solutions for fast… div.framer-115yb0g > div.ssr-variant > div.framer-1jp3vgb > p.framer-text
01 div.framer-jqhjya > div.framer-wijmf6 > div.framer-1x0l8uf > p.framer-text
02 div.framer-2oc917 > div.framer-1yjzd2n > div.framer-1fl9q8t > p.framer-text
Want to block off weekends? Set up any buffers? We make that easy. div.framer-2oc917 > div.framer-tqjb0v > div.framer-191s6uv > p.framer-text
03 div.framer-ley2a5 > div.framer-154gnp0 > div.framer-oad006 > p.framer-text
It could be a video chat, phone call, or a walk in the park! div.framer-ley2a5 > div.framer-umywzq > div.framer-9imk76 > p.framer-text
Discover a variety of our advanced features. Unlimited and free for individuals. div.framer-1sfylas > div.ssr-variant > div.framer-jhwn0d > p.framer-text
Only get booked when you want to. Set daily, weekly or monthly limits and add b… div.framer-l5bt33 > div.framer-15u4jlf > div.framer-1k01ma2 > p.framer-text
Customize your booking link so it’s short and easy to remember for your bookers… div.framer-cf392j > div.framer-pbs030 > div.framer-7i03pc > p.framer-text
Cédric van Ravesteijn div.framer-wa00rr-container > div.framer-EjjaP > div.framer-hw592q > p.framer-text
Are you an agency, influencer, SaaS founder, or business looking to collaborate… div.framer-1w2wxbc > div.framer-1u1pvzv > div.framer-3nwhzq > p.framer-text
15m div.framer-5btwhh-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
45m div.framer-1yc9ez4-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
1h div.framer-123b598-container > div.framer-V26CA > div.framer-p342vb > p.framer-text
Cal Video div.framer-1uh83 > div.framer-1t6rkik > div.framer-11zz41t > p.framer-text
24h div.framer-encily > div.framer-1qb6d8o > div.framer-1t8c82u > p.framer-text
Wed 06 div.framer-3yv7sl > div.framer-1669y0q > div.framer-4n56wt > p.framer-text
Thu 07 div.framer-3yv7sl > div.framer-z1tgqc > div.framer-1p3uvja > p.framer-text
Fri 08 div.framer-3yv7sl > div.framer-1httwsa > div.framer-9d9c1t > p.framer-text
Sat 09 div.framer-3yv7sl > div.framer-8c4sqs > div.framer-3moh2p > p.framer-text
Sun 10 div.framer-3yv7sl > div.framer-s5k8ht > div.framer-yutkb2 > p.framer-text
James Oliver booked a 30min discovery call with you. div.framer-12fbk53 > div.framer-rj7701 > div.framer-8kdiiu > p.framer-text
Just now div.framer-12fbk53 > div.framer-1n0fy1h > div.framer-1hy18ib > p.framer-text
Our users are our best ambassadors. Discover why we're the top choice for sched… div.framer-anah9k > div.framer-1tskhsg > div.framer-pz421g > p.framer-text
Cal.com works with all apps already in your flow ensuring everything works perf… div.framer-sprgy > div.framer-szmb98 > div.framer-jutukm > p.framer-text
Read the impact we've had from those who matter most - our customers. div.framer-kaazze > div.ssr-variant > div.framer-1noi95h > p.framer-text
Trusted by fast-growing companies around the world div.framer-wu9mz7 > div.framer-3mjl56 > div.framer-re95um > p.framer-text
support@cal.com div.framer-12aw6q8 > div.framer-1jaoeul > p.framer-text > a.framer-text
cal.com/help div.framer-12aw6q8 > div.framer-1jaoeul > p.framer-text > a.framer-text

These are opportunities to improve the legibility of your content.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Failing Elements
div.framer-6c2yx > div.framer-12aw6q8 > div.framer-1yqdgut > a.framer-vp3foh div.framer-6c2yx > div.framer-12aw6q8 > div.framer-1yqdgut > a.framer-vp3foh
div.framer-6c2yx > div.framer-12aw6q8 > div.framer-1yqdgut > a.framer-10o4bl8 div.framer-6c2yx > div.framer-12aw6q8 > div.framer-1yqdgut > a.framer-10o4bl8

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

One main landmark helps screen reader users navigate a web page. Learn more about landmarks.

Failing Elements
html.wf-inter-n4-active html.wf-inter-n4-active

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
Select elements have associated label elements.
ARIA attributes are used as specified for the element's role
`[aria-hidden="true"]` elements do not contain focusable descendents
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
No element has a `[tabindex]` value greater than 0
Touch targets have sufficient size and spacing.
Heading elements appear in a sequentially-descending order
Identical links have the same purpose.
`[accesskey]` values are unique
`button`, `link`, and `menuitem` elements have accessible names
Deprecated ARIA roles were not used
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
`[role]`s have all required `[aria-*]` attributes
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
`[role]` values are valid
Elements with the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
The page contains a heading, skip link, or landmark region
`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
Definition list items are wrapped in `<dl>` elements
ARIA IDs are unique
No form fields have multiple labels
`<frame>` or `<iframe>` elements have a title
`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
Input buttons have discernible text.
`<input type="image">` elements have `[alt]` text
Form elements have associated labels
Links are distinguishable without relying on color.
The document does not use `<meta http-equiv="refresh">`
`<object>` elements have alternate text
Skip links are focusable.
Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
`[lang]` attributes have a valid value
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Tables have different content in the summary attribute and `<caption>`.
All heading elements contain content.
Uses ARIA roles only on compatible elements
Image elements do not have `[alt]` attributes that are redundant text.
Elements with visible text labels have matching accessible names.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
96

Best Practices

General

Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit

SourceDescription
Failed to load resource: the server responded with a status of 403 ()
Failed to load resource: the server responded with a status of 403 ()
cal.com/ line 805, col 0
Manifest fetch from https://api.jsonbin.io/v3/b/69739405ae596e708ff0394c?meta=false failed, code 403
Manifest fetch from https://api.jsonbin.io/v3/b/69739405ae596e708ff0394c?meta=false failed, code 403
Uses HTTPS
Avoids deprecated APIs
Avoids third-party cookies
Allows users to paste into input fields
Avoids requesting the geolocation permission on page load
Avoids requesting the notification permission on page load
Displays images with correct aspect ratio
Serves images with appropriate resolution
Page has the HTML doctype
Properly defines charset
No issues in the `Issues` panel in Chrome Devtools
Ensure CSP is effective against XSS attacks
Use a strong HSTS policy
Ensure proper origin isolation with COOP
Mitigate clickjacking with XFO or CSP
Mitigate DOM-based XSS with Trusted Types
Detected JavaScript libraries
Page has valid source maps
Redirects HTTP traffic to HTTPS
92

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

Content Best Practices

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Link destinationLink Text
cal.com/complianceLearn more

Format your HTML in a way that enables crawlers to better understand your app’s content.

Structured data is valid
Page isn’t blocked from indexing
Document has a `<title>` element
Document has a meta description
Page has successful HTTP status code
Links are crawlable
robots.txt is valid
Image elements have `[alt]` attributes
Document has a valid `hreflang`
Document has a valid `rel=canonical`

Send Feedback