Report Summary

  • 23

    Performance

    Renders faster than
    42% of other websites

  • 61

    Accessibility

    Visual factors better than
    that of 27% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

nerddy.com

Nerddy

Page Load Speed

1.2 sec in total

First Response

404 ms

Resources Loaded

671 ms

Page Rendered

147 ms

nerddy.com screenshot

About Website

Welcome to nerddy.com homepage info - get ready to check Nerddy best content for United States right away, or after learning these important things about nerddy.com

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Key Findings

We analyzed Nerddy.com page load time and found that the first response time was 404 ms and then it took 818 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 15% of websites can load faster.

Performance Metrics

nerddy.com performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value7.4 s

1/100

10%

LCP (Largest Contentful Paint)

Value9.5 s

0/100

25%

SI (Speed Index)

Value7.4 s

27/100

10%

TBT (Total Blocking Time)

Value1,660 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.05

99/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

nerddy.com

404 ms

styles.css

132 ms

css

38 ms

jquery-1.10.2.js

45 ms

bluelogo.png

214 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 59% of them (10 requests) were addressed to the original Nerddy.com, 24% (4 requests) were made to Fonts.gstatic.com and 12% (2 requests) were made to Code.jquery.com. The less responsive or slowest element that took the longest time to load (404 ms) belongs to the original domain Nerddy.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 120.2 kB (80%)

Content Size

149.3 kB

After Optimization

29.2 kB

In fact, the total size of Nerddy.com main page is 149.3 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. 25% of websites need less resources to load. CSS take 122.5 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 17.2 kB

  • Original 22.6 kB
  • After minification 22.4 kB
  • After compression 5.4 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 17.2 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 93 B

  • Original 4.3 kB
  • After minification 4.2 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. Nerddy images are well optimized though.

CSS Optimization

-84%

Potential reduce by 102.9 kB

  • Original 122.5 kB
  • After minification 94.5 kB
  • After compression 19.5 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. Nerddy.com needs all CSS files to be minified and compressed as it can save up to 102.9 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (67%)

Requests Now

12

After Optimization

4

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nerddy. 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 CSS and as a result speed up the page load time.

Accessibility Review

nerddy.com accessibility score

61

Accessibility Issues

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

Best Practices

nerddy.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

nerddy.com SEO score

50

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

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 Nerddy.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 Nerddy.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

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