Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

olacio.com

欧那教育官网-全球师资,专业小语种培训

Page Load Speed

9.9 sec in total

First Response

516 ms

Resources Loaded

9.2 sec

Page Rendered

190 ms

olacio.com screenshot

About Website

Welcome to olacio.com homepage info - get ready to check Olacio best content for Russia right away, or after learning these important things about olacio.com

欧那教育-专业的小语种在线网校,全球20+国家优秀师资,情景式教学和自由选课,24小时录像回放;培养专业的语言能力;

Visit olacio.com

Key Findings

We analyzed Olacio.com page load time and found that the first response time was 516 ms and then it took 9.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

olacio.com performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.044

99/100

15%

TTI (Time to Interactive)

Value9.3 s

32/100

10%

Network Requests Diagram

olacio.com

516 ms

www.olacio.com

1330 ms

common.css

837 ms

home.css

720 ms

carousel.css

731 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 70% of them (44 requests) were addressed to the original Olacio.com, 21% (13 requests) were made to Static.olacio.com and 3% (2 requests) were made to At.alicdn.com. The less responsive or slowest element that took the longest time to load (5 sec) belongs to the original domain Olacio.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 140.4 kB (6%)

Content Size

2.2 MB

After Optimization

2.1 MB

In fact, the total size of Olacio.com main page is 2.2 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 45% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 24.0 kB

  • Original 29.6 kB
  • After minification 21.9 kB
  • After compression 5.6 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 7.7 kB, which is 26% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 24.0 kB or 81% of the original size.

Image Optimization

-2%

Potential reduce by 40.4 kB

  • Original 2.1 MB
  • After minification 2.1 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Olacio images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 18 B

  • Original 261 B
  • After minification 261 B
  • After compression 243 B

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-83%

Potential reduce by 76.0 kB

  • Original 91.5 kB
  • After minification 68.6 kB
  • After compression 15.5 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Olacio.com needs all CSS files to be minified and compressed as it can save up to 76.0 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (25%)

Requests Now

59

After Optimization

44

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Olacio. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

olacio.com accessibility score

59

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

olacio.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

olacio.com SEO score

82

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    ZH

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Olacio.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Olacio.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

Open Graph description is not detected on the main page of Olacio. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: