Tools & Wizards About Us
alerta.com screenshot

Report Summary

  • 61

    Performance

    Renders faster than
    76% of other websites

  • 47

    Accessibility

    Visual factors better than
    that of 20% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

alerta.com

Website monitoring service by Alertra to monitor site uptime

Page Load Speed

4 sec in total

First Response

72 ms

Resources Loaded

1 sec

Page Rendered

2.9 sec

alerta.com screenshot

About Website

Click here to check amazing Alerta content. Otherwise, check out these important facts you probably never knew about alerta.com

Alertra website monitoring service checks your websites, servers and routers continuously. Our website monitor lets you know immediately about an outage or slowdown. Free Trial for 30 days!

Visit alerta.com

Key Findings

We analyzed Alerta.com page load time and found that the first response time was 72 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

alerta.com performance score

61

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value3.1 s

92/100

10%

TBT (Total Blocking Time)

Value510 ms

57/100

30%

CLS (Cumulative Layout Shift)

Value0.072

96/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

Network Requests Diagram

alerta.com

72 ms

www.alertra.com

71 ms

www.alertra.com

228 ms

css__hOMyo4QPKXye0ZJP1opD0Pw8NbGfFSzZu2uQYp6s6K0__sDDDuaehNGBYKGQma8Wu6Erq1I7SqB58g7Guw369xIA__4q_K0ZCG32YAJd1R38qsybJuzRXNgN6sah8Y7wS4bes.css

69 ms

js__wtlSuB4v2BWlkMBdtEzSUHhPmxXRtm5hnUF71RoVdj8__y8U3uH_yDGc0HfmnfSmrxr8rt1YMnOO1caS9FIvJpJE__4q_K0ZCG32YAJd1R38qsybJuzRXNgN6sah8Y7wS4bes.js

144 ms

Our browser made a total of 34 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Alerta.com, 62% (21 requests) were made to Alertra.com and 12% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (299 ms) relates to the external source Alertra.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 37.1 kB (4%)

Content Size

900.7 kB

After Optimization

863.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alerta.com main page is 900.7 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. 30% of websites need less resources to load. Images take 758.7 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 13.1 kB

  • Original 18.7 kB
  • After minification 17.1 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. 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 13.1 kB or 70% of the original size.

Image Optimization

-1%

Potential reduce by 9.7 kB

  • Original 758.7 kB
  • After minification 749.0 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. Alerta images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 14.3 kB

  • Original 104.0 kB
  • After minification 104.0 kB
  • After compression 89.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 14.3 kB or 14% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 19.2 kB
  • After minification 19.2 kB
  • After compression 19.2 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. Alerta.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (46%)

Requests Now

26

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alerta. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

alerta.com

alerta.com

72 ms

www.alertra.com

www.alertra.com

71 ms

www.alertra.com

www.alertra.com

228 ms

css__hOMyo4QPKXye0ZJP1opD0Pw8NbGfFSzZu2uQYp6s6K0__sDDDuaehNGBYKGQma8Wu6Erq1I7SqB58g7Guw369xIA__4q_K0ZCG32YAJd1R38qsybJuzRXNgN6sah8Y7wS4bes.css

css__hOMyo4QPKXye0ZJP1opD0Pw8NbGfFSzZu2uQYp6s6K0__sDDDuaehNGBYKGQma8Wu6Erq1I7SqB58g7Guw369xIA__4q_K0ZCG32YAJd1R38qsybJuzRXNgN6sah8Y7wS4bes.css

69 ms

js__wtlSuB4v2BWlkMBdtEzSUHhPmxXRtm5hnUF71RoVdj8__y8U3uH_yDGc0HfmnfSmrxr8rt1YMnOO1caS9FIvJpJE__4q_K0ZCG32YAJd1R38qsybJuzRXNgN6sah8Y7wS4bes.js

js__wtlSuB4v2BWlkMBdtEzSUHhPmxXRtm5hnUF71RoVdj8__y8U3uH_yDGc0HfmnfSmrxr8rt1YMnOO1caS9FIvJpJE__4q_K0ZCG32YAJd1R38qsybJuzRXNgN6sah8Y7wS4bes.js

144 ms

css

css

38 ms

conversion.js

conversion.js

83 ms

analytics.js

analytics.js

172 ms

217 ms

hero-v3.jpg

hero-v3.jpg

217 ms

login-white.png

login-white.png

49 ms

logo.png

logo.png

97 ms

logo-white.png

logo-white.png

136 ms

menu-push.png

menu-push.png

133 ms

home-online.jpg

home-online.jpg

190 ms

spot.png

spot.png

134 ms

uptime.jpg

uptime.jpg

191 ms

home-uptime.png

home-uptime.png

299 ms

home-security.jpg

home-security.jpg

236 ms

search-box-icon.png

search-box-icon.png

191 ms

footer-logo.png

footer-logo.png

206 ms

rss.png

rss.png

205 ms

twit.png

twit.png

204 ms

fb.png

fb.png

236 ms

gplus.png

gplus.png

238 ms

li.png

li.png

237 ms

0831.js

0831.js

73 ms

7Aulp_0qiz-aVz7u3PJLcUMYOFnOkEk30e4.woff

7Aulp_0qiz-aVz7u3PJLcUMYOFnOkEk30e4.woff

49 ms

7Aulp_0qiz-aVz7u3PJLcUMYOFkQl0k30e4.woff

7Aulp_0qiz-aVz7u3PJLcUMYOFkQl0k30e4.woff

64 ms

7Aulp_0qiz-aVz7u3PJLcUMYOFkpl0k30e4.woff

7Aulp_0qiz-aVz7u3PJLcUMYOFkpl0k30e4.woff

71 ms

7Aulp_0qiz-aVz7u3PJLcUMYOFlnl0k30e4.woff

7Aulp_0qiz-aVz7u3PJLcUMYOFlnl0k30e4.woff

80 ms

collect

collect

23 ms

js

js

90 ms

52 ms

Accessibility Review

alerta.com accessibility score

47

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

alerta.com best practices score

58

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

SEO Factors

alerta.com SEO score

85

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Alerta.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Alerta.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

alerta.com

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