Tools & Wizards About Us
zsnes.com screenshot

Report Summary

  • 52

    Performance

    Renders faster than
    70% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

zsnes.com

ZSNES Home Page - About ZSNES

Page Load Speed

4.1 sec in total

First Response

289 ms

Resources Loaded

3 sec

Page Rendered

807 ms

zsnes.com screenshot

About Website

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

Visit zsnes.com

Key Findings

We analyzed Zsnes.com page load time and found that the first response time was 289 ms and then it took 3.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

zsnes.com performance score

52

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value2.6 s

86/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value1,390 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.199

62/100

15%

TTI (Time to Interactive)

Value8.8 s

35/100

10%

Network Requests Diagram

zsnes.com

289 ms

gp.min.js

31 ms

show_ads.js

18 ms

logo.gif

137 ms

ca-pub-7645045873107134.js

116 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 29% of them (11 requests) were addressed to the original Zsnes.com, 13% (5 requests) were made to Pagead2.googlesyndication.com and 11% (4 requests) were made to C.betrad.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Cdn3.doubleverify.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 89.1 kB (27%)

Content Size

336.2 kB

After Optimization

247.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zsnes.com main page is 336.2 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. 40% of websites need less resources to load. Javascripts take 224.0 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 10.0 kB

  • Original 13.2 kB
  • After minification 10.7 kB
  • After compression 3.2 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 2.5 kB, which is 19% 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 10.0 kB or 76% of the original size.

Image Optimization

-5%

Potential reduce by 5.2 kB

  • Original 96.5 kB
  • After minification 91.3 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. ZSNES images are well optimized though.

JavaScript Optimization

-32%

Potential reduce by 72.4 kB

  • Original 224.0 kB
  • After minification 211.8 kB
  • After compression 151.7 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 72.4 kB or 32% of the original size.

CSS Optimization

-65%

Potential reduce by 1.6 kB

  • Original 2.5 kB
  • After minification 1.6 kB
  • After compression 872 B

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. Zsnes.com needs all CSS files to be minified and compressed as it can save up to 1.6 kB or 65% of the original size.

Requests Breakdown

Number of requests can be reduced by 15 (41%)

Requests Now

37

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ZSNES. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zsnes.com

zsnes.com

289 ms

gp.min.js

gp.min.js

31 ms

show_ads.js

show_ads.js

18 ms

logo.gif

logo.gif

137 ms

ca-pub-7645045873107134.js

ca-pub-7645045873107134.js

116 ms

zrt_lookup.html

zrt_lookup.html

342 ms

show_ads_impl.js

show_ads_impl.js

91 ms

corner.gif

corner.gif

56 ms

screenshot1.png

screenshot1.png

73 ms

screenshot2.png

screenshot2.png

306 ms

screenshot3.png

screenshot3.png

305 ms

screenshot4.png

screenshot4.png

305 ms

screenshot5.png

screenshot5.png

304 ms

screenshot6.png

screenshot6.png

282 ms

screenshot7.png

screenshot7.png

282 ms

screenshot8.png

screenshot8.png

356 ms

ads

ads

336 ms

osd.js

osd.js

27 ms

ads

ads

190 ms

abg.js

abg.js

70 ms

s_0R6pcSVzMi_1547776481.html

s_0R6pcSVzMi_1547776481.html

73 ms

cl

cl

91 ms

creative_add_on.js

creative_add_on.js

49 ms

modernizr_2.8.3_ec185bb44fe5e6bf7455d6e8ef37ed0e_no-classes.js

modernizr_2.8.3_ec185bb44fe5e6bf7455d6e8ef37ed0e_no-classes.js

79 ms

lidar.js

lidar.js

22 ms

surly.js

surly.js

187 ms

dvtp_src.js

dvtp_src.js

87 ms

index.html

index.html

34 ms

runtime.js

runtime.js

525 ms

css

css

892 ms

css

css

1019 ms

main.css

main.css

20 ms

ba.html

ba.html

922 ms

4.gif

4.gif

1224 ms

dvtp_src_internal25.js

dvtp_src_internal25.js

9 ms

t2tv7.html

t2tv7.html

1228 ms

visit.js

visit.js

1023 ms

2532.js

2532.js

252 ms

Accessibility Review

zsnes.com accessibility score

96

Accessibility Issues

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

zsnes.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

zsnes.com SEO score

62

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zsnes.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 Zsnes.com main page’s claimed encoding is iso-8859-1. 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

zsnes.com

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