Report Summary

  • 14

    Performance

    Renders faster than
    26% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 77% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

nps-dc.org

National Presbyterian School | Elementary School in NW DC

Page Load Speed

1.7 sec in total

First Response

205 ms

Resources Loaded

943 ms

Page Rendered

569 ms

nps-dc.org screenshot

About Website

Welcome to nps-dc.org homepage info - get ready to check Nps DC best content right away, or after learning these important things about nps-dc.org

National Presbyterian School is a private elementary school in NW, Washington, DC, for students Age 3 through Grade 6.

Visit nps-dc.org

Key Findings

We analyzed Nps-dc.org page load time and found that the first response time was 205 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

nps-dc.org performance score

14

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.2 s

1/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value8.4 s

19/100

10%

TBT (Total Blocking Time)

Value800 ms

36/100

30%

CLS (Cumulative Layout Shift)

Value1.473

0/100

15%

TTI (Time to Interactive)

Value12.0 s

16/100

10%

Network Requests Diagram

nps-dc.org

205 ms

www.nps-dc.org

65 ms

gtm.js

38 ms

application-0ea2e188f342f74c4e9db2827d7bc6cf6ddefba43508d1ada18b74ec0c717355.css

93 ms

styles.cfm

113 ms

Our browser made a total of 27 requests to load all elements on the main page. We found that 41% of them (11 requests) were addressed to the original Nps-dc.org, 37% (10 requests) were made to Fonts.gstatic.com and 7% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (289 ms) relates to the external source Fonts.gstatic.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 71.2 kB (9%)

Content Size

813.8 kB

After Optimization

742.6 kB

In fact, the total size of Nps-dc.org main page is 813.8 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. 70% of websites need less resources to load. Javascripts take 697.7 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 71.0 kB

  • Original 85.6 kB
  • After minification 83.4 kB
  • After compression 14.6 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 71.0 kB or 83% of the original size.

JavaScript Optimization

-0%

Potential reduce by 98 B

  • Original 697.7 kB
  • After minification 697.7 kB
  • After compression 697.6 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 129 B

  • Original 30.5 kB
  • After minification 30.5 kB
  • After compression 30.4 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. Nps-dc.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 11 (79%)

Requests Now

14

After Optimization

3

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nps DC. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

nps-dc.org accessibility score

91

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

High

[aria-*] attributes do not have valid values

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

nps-dc.org best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

nps-dc.org 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

Links do not have descriptive text

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

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 Nps-dc.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 Nps-dc.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 Nps DC. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: