Saigonzoo.net Trang chủ - Thảo Cầm Viên - Saigon Zoo & Botanical Gardens
Một trong những công trình mang tính lịch sử và lâu đời nhất TP. HCM, Thảo Cầm Viên Sài Gòn không chỉ là một di tích lịch sử mà còn là biểu tượng văn ...
saigonzoo.net Desktop Performance
37/100
These metrics represent real-world Chrome users experience viewing saigonzoo.net web page. Reports are focused on loading performance and other critical factors that most affect user experience. Follow our guide to track, optimize, and improve the quality of your web pages.
User Loading Experience
Cumulative Layout Shift
First Contentful Paint
First Input Delay
Largest Contentful Paint
Metrics
Speed Index0/100 11.2 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more.
Largest Contentful Paint2/100 7.4 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn More
Time to Interactive30/100 5.7 s
Time to interactive is the amount of time it takes for the page to become fully interactive. Learn more.
First Contentful Paint49/100 1.6 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more.
Total Blocking Time78/100 210 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more.
Cumulative Layout Shift100/100 0.014
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more.
Should Fix (17)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Reduce initial server response time
Root document took 2,550 ms
1,951 ms
Remove unused JavaScript
Potential savings of 1,960 KiB
1,720 ms
Enable text compression
Potential savings of 1,320 KiB
1,240 ms
Eliminate render-blocking resources
Potential savings of 1,210 ms
1,211 ms
Serve images in next-gen formats
Potential savings of 860 KiB
720 ms
Remove unused CSS
Potential savings of 432 KiB
480 ms
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Serve static assets with an efficient cache policy
59 resources found
Ensure text remains visible during webfont load
Avoid enormous network payloads
Total size was 5,688 KiB
Minimize main-thread work
3.6 s
Avoid an excessive DOM size
934 elements
JavaScript execution time
1.1 s
Largest Contentful Paint element
1 element found
Keep request counts low and transfer sizes small
121 requests • 5,688 KiB
Avoid large layout shifts
5 elements found
Avoid chaining critical requests
23 chains found
Avoid long main-thread tasks
13 long tasks found
Passed Audits (12)
Minify CSS
Defer offscreen images
Avoids `document.write()`
Avoid multiple page redirects
Potential savings of 190 ms
Preload key requests
Efficiently encode images
Uses passive listeners to improve scrolling performance
Use video formats for animated content
Preconnect to required origins
Properly size images
Potential savings of 56 KiB
Minify JavaScript
Minimize third-party usage
Third-party code blocked the main thread for 60 ms
saigonzoo.net Desktop SEO
92/100
These checks ensure that your page is optimized for search engine results ranking. There are additional factors Lighthouse does not check that may affect your search ranking. Learn more. Run these additional validators on your site to check additional SEO best practices.
Should Fix (1)
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Links are not crawlable
Passed Audits (11)
Document avoids plugins
Document has a valid `hreflang`
Document has a valid `rel=canonical`
robots.txt is valid
Page has successful HTTP status code
Page isn’t blocked from indexing
Document has a meta description
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Image elements have `[alt]` attributes
Document has a `<title>` element
Links have descriptive text
saigonzoo.net Desktop Best Practices
69/100
These checks highlight opportunities to improve the overall code health of saigonzoo.net page. Current recommendations will help to make your page fast and secure, to create a good user experience and to avoid deprecated technologies.
Should Fix (4)
Trust and Safety
Includes front-end JavaScript libraries with known security vulnerabilities
5 vulnerabilities detected
Links to cross-origin destinations are unsafe
Does not use HTTPS
1 insecure request found
General
Browser errors were logged to the console
Passed Audits (10)
Displays images with correct aspect ratio
Allows users to paste into password fields
Avoids requesting the notification permission on page load
Page has the HTML doctype
Detected JavaScript libraries
Avoids requesting the geolocation permission on page load
Avoids Application Cache
Properly defines charset
Serves images with appropriate resolution
Avoids deprecated APIs
saigonzoo.net Desktop Progressive Web App
22/100
These checks validate the aspects of a Progressive Web App. Learn more. These checks are required by the baseline PWA Checklist but are not automatically checked by Lighthouse. They do not affect your score but it's important that you verify them manually.
Should Fix (9)
Fast and reliable
`start_url` does not respond with a 200 when offline
Current page does not respond with a 200 when offline
Page load is not fast enough on mobile networks
Interactive on simulated mobile network at 33.9 s
Installable
Does not register a service worker that controls page and `start_url`
Web app manifest does not meet the installability requirements
Does not use HTTPS
1 insecure request found
PWA Optimized
Does not set a theme color for the address bar.
Is not configured for a custom splash screen
Manifest doesn't have a maskable icon
Passed Audits (4)
Provides a valid `apple-touch-icon`
Has a `<meta name="viewport">` tag with `width` or `initial-scale`
Contains some content when JavaScript is not available
Redirects HTTP traffic to HTTPS
saigonzoo.net Desktop Accessibility
86/100
These checks highlight opportunities to improve the accessibility of your web app. Only a subset of accessibility issues can be automatically detected so manual testing is also encouraged. These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility review.
Should Fix (5)
Names and labels
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.
`<frame>` or `<iframe>` elements do not have a title
Form elements do not have associated labels
Links do not have a discernible name
Navigation
These are opportunities to improve keyboard navigation in your application.
Heading elements are not in a sequentially-descending order
Contrast
These are opportunities to improve the legibility of your content.
Background and foreground colors do not have a sufficient contrast ratio.
Passed Audits (19)
`<html>` element has a valid value for its `[lang]` attribute
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]` values are valid
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
`<html>` element has a `[lang]` attribute
`[aria-*]` attributes are valid and not misspelled
`[lang]` attributes have a valid value
`[aria-*]` attributes have valid values
`[role]`s have all required `[aria-*]` attributes
Image elements have `[alt]` attributes
`[aria-hidden="true"]` is not present on the document `<body>`
Document has a `<title>` element
The page contains a heading, skip link, or landmark region
`[aria-hidden="true"]` elements do not contain focusable descendents
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`[role]`s are contained by their required parent element
`[aria-*]` attributes match their roles
List items (`<li>`) are contained within `<ul>` or `<ol>` parent elements
No element has a `[tabindex]` value greater than 0
Desktop Speed
60/100
These checks analyze the performance of saigonzoo.net on desktop devices and return PageSpeed score and information on how to improve the load time. What makes a good Progressive Web App?
Should Fix (6)
Optimize images
Leverage browser caching
Eliminate render-blocking JavaScript and CSS in above-the-fold content
Minify JavaScript
Minify CSS
Minify HTML
Passed Audits (4)
Avoid landing page redirects
Enable compression
Reduce server response time
Prioritize visible content
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