Report Summary

  • 2

    Performance

    Renders faster than
    20% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

dallasisd.org

Home - Dallas Independent School District

Page Load Speed

1.8 sec in total

First Response

39 ms

Resources Loaded

1.4 sec

Page Rendered

443 ms

dallasisd.org screenshot

About Website

Visit dallasisd.org now to see the best up-to-date Dallas Isd content for United States and also check out these interesting facts you probably never knew about dallasisd.org

Home - Dallas Independent School District

Visit dallasisd.org

Key Findings

We analyzed Dallasisd.org page load time and found that the first response time was 39 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

dallasisd.org performance score

2

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.1 s

1/100

10%

LCP (Largest Contentful Paint)

Value26.8 s

0/100

25%

SI (Speed Index)

Value9.7 s

10/100

10%

TBT (Total Blocking Time)

Value2,770 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.924

3/100

15%

TTI (Time to Interactive)

Value24.9 s

0/100

10%

Network Requests Diagram

dallasisd.org

39 ms

www.dallasisd.org

23 ms

www.dallasisd.org

224 ms

pendo.js

214 ms

sri-failover.min.js

26 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 52% of them (49 requests) were addressed to the original Dallasisd.org, 14% (13 requests) were made to Extend.schoolwires.com and 7% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (549 ms) relates to the external source Fonts.gstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 534.3 kB (13%)

Content Size

4.2 MB

After Optimization

3.7 MB

In fact, the total size of Dallasisd.org main page is 4.2 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. Only a small number of websites need less resources to load. Images take 3.1 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 353.6 kB

  • Original 429.4 kB
  • After minification 417.8 kB
  • After compression 75.8 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 353.6 kB or 82% of the original size.

Image Optimization

-5%

Potential reduce by 145.8 kB

  • Original 3.1 MB
  • After minification 2.9 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. Dallas Isd images are well optimized though.

JavaScript Optimization

-4%

Potential reduce by 15.0 kB

  • Original 416.5 kB
  • After minification 414.5 kB
  • After compression 401.6 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

-7%

Potential reduce by 20.0 kB

  • Original 300.6 kB
  • After minification 300.4 kB
  • After compression 280.7 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. Dallasisd.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 59 (71%)

Requests Now

83

After Optimization

24

The browser has sent 83 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dallas Isd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 44 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

dallasisd.org accessibility score

96

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.

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

Links do not have a discernible name

Best Practices

dallasisd.org best practices score

67

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

dallasisd.org SEO score

91

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

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Dallasisd.org 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 Dallasisd.org 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 data is detected on the main page of Dallas Isd. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: