Tools & Wizards About Us
school-calls.com screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

school-calls.com

School Calls - Deliver Phone Messages To Parents, Students and Administrators

Page Load Speed

1.2 sec in total

First Response

274 ms

Resources Loaded

800 ms

Page Rendered

155 ms

school-calls.com screenshot

About Website

Click here to check amazing School Calls content. Otherwise, check out these important facts you probably never knew about school-calls.com

School calls and school announcements using voice messaging broadcasting services. Call center technology products and services.

Visit school-calls.com

Key Findings

We analyzed School-calls.com page load time and found that the first response time was 274 ms and then it took 955 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

school-calls.com performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value1.2 s

100/100

10%

TBT (Total Blocking Time)

Value340 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0.374

28/100

15%

TTI (Time to Interactive)

Value4.7 s

80/100

10%

Network Requests Diagram

school-calls.com

274 ms

style.css

126 ms

bat.js

44 ms

analytics.js

7 ms

school_calls_bird.jpg

60 ms

Our browser made a total of 20 requests to load all elements on the main page. We found that 60% of them (12 requests) were addressed to the original School-calls.com, 10% (2 requests) were made to Bat.bing.com and 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (370 ms) belongs to the original domain School-calls.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 21.7 kB (17%)

Content Size

129.9 kB

After Optimization

108.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of School-calls.com main page is 129.9 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 15% of websites need less resources to load. Images take 72.7 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 11.6 kB

  • Original 16.7 kB
  • After minification 15.1 kB
  • After compression 5.1 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 11.6 kB or 70% of the original size.

Image Optimization

-9%

Potential reduce by 6.6 kB

  • Original 72.7 kB
  • After minification 66.1 kB

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. School Calls images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 383 B

  • Original 36.4 kB
  • After minification 36.4 kB
  • After compression 36.0 kB

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

-75%

Potential reduce by 3.2 kB

  • Original 4.2 kB
  • After minification 3.5 kB
  • After compression 1.1 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. School-calls.com needs all CSS files to be minified and compressed as it can save up to 3.2 kB or 75% of the original size.

Requests Breakdown

Number of requests can be reduced by 5 (26%)

Requests Now

19

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 19 CSS, Javascripts, AJAX and image requests in order to completely render the main page of School Calls. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

school-calls.com

school-calls.com

274 ms

style.css

style.css

126 ms

bat.js

bat.js

44 ms

analytics.js

analytics.js

7 ms

school_calls_bird.jpg

school_calls_bird.jpg

60 ms

school_calls_banner.gif

school_calls_banner.gif

125 ms

lightline.jpg

lightline.jpg

112 ms

school-calls-logo.gif

school-calls-logo.gif

174 ms

dsc-logo.gif

dsc-logo.gif

370 ms

school-calls.jpg

school-calls.jpg

203 ms

school-calls-register.jpg

school-calls-register.jpg

339 ms

school-reminders-client.jpg

school-reminders-client.jpg

229 ms

android-vb.jpg

android-vb.jpg

197 ms

collect

collect

29 ms

331000361.js

331000361.js

27 ms

js

js

71 ms

331000361

331000361

132 ms

clarity.js

clarity.js

32 ms

print.css

print.css

80 ms

c.gif

c.gif

7 ms

Accessibility Review

school-calls.com accessibility score

63

Accessibility Issues

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

school-calls.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

SEO Factors

school-calls.com SEO score

86

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise School-calls.com can be misinterpreted by Google and other search engines. Our service has detected that English 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 School-calls.com main page’s claimed encoding is windows-1252. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

school-calls.com

Open Graph description is not detected on the main page of School Calls. 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: