Tools & Wizards About Us

Report Summary

  • 84

    Performance

    Renders faster than
    88% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

subalert.com

SubAlert - Job Alerts for Frontline Education Absence Management

Page Load Speed

491 ms in total

First Response

8 ms

Resources Loaded

280 ms

Page Rendered

203 ms

About Website

Click here to check amazing Sub Alert content for United States. Otherwise, check out these important facts you probably never knew about subalert.com

Frontline Education Absence Management job alerts and booking, via iPhone, iPad, Android, text message, phone call, desktop alert, & email

Visit subalert.com

Key Findings

We analyzed Subalert.com page load time and found that the first response time was 8 ms and then it took 483 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 10% of websites can load faster.

Performance Metrics

subalert.com performance score

84

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

69/100

25%

SI (Speed Index)

Value3.3 s

90/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

subalert.com

8 ms

subalert.com

12 ms

www.subalert.com

37 ms

application-08d1c76d790a665b46f627a37489f1c93bff02a37354501bacd2849b423e5278.css

2 ms

application-b0d24c41eb6ccafbb6b7e8132231d3fb135451fdc39662d92f0a1a534716f14d.js

8 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 91% of them (31 requests) were addressed to the original Subalert.com, 6% (2 requests) were made to Fonts.gstatic.com and 3% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (97 ms) relates to the external source Fonts.gstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 442.4 kB (54%)

Content Size

816.9 kB

After Optimization

374.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Subalert.com main page is 816.9 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. 45% of websites need less resources to load. Images take 726.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 16.6 kB

  • Original 22.7 kB
  • After minification 19.0 kB
  • After compression 6.2 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 3.7 kB, which is 16% 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 16.6 kB or 73% of the original size.

Image Optimization

-59%

Potential reduce by 425.8 kB

  • Original 726.9 kB
  • After minification 301.1 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. Obviously, Sub Alert needs image optimization as it can save up to 425.8 kB or 59% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 48.6 kB
  • After minification 48.6 kB
  • After compression 48.6 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

-0%

Potential reduce by 0 B

  • Original 18.7 kB
  • After minification 18.7 kB
  • After compression 18.7 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. Subalert.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

30

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sub Alert. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

subalert.com accessibility score

65

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.

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

subalert.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

SEO Factors

subalert.com SEO score

92

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Subalert.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 Subalert.com main page’s claimed encoding is . 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

Open Graph description is not detected on the main page of Sub Alert. 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: