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521ad.com screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

521ad.com

404 Not Found

Page Load Speed

4.7 sec in total

First Response

913 ms

Resources Loaded

3.6 sec

Page Rendered

191 ms

521ad.com screenshot

About Website

Welcome to 521ad.com homepage info - get ready to check 521 Ad best content right away, or after learning these important things about 521ad.com

Visit 521ad.com

Key Findings

We analyzed 521ad.com page load time and found that the first response time was 913 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 65% of websites can load faster.

Performance Metrics

521ad.com performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

28/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

15/100

25%

SI (Speed Index)

Value7.2 s

30/100

10%

TBT (Total Blocking Time)

Value250 ms

84/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value9.3 s

31/100

10%

Network Requests Diagram

521ad.com

913 ms

sbi-styles.min.css

417 ms

style.min.css

630 ms

blossomthemes-email-newsletter-public.min.css

418 ms

blossomthemes-toolkit-public.min.css

423 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original 521ad.com, 58% (34 requests) were made to 0 and 39% (23 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.3 sec) relates to the external source .

Page Optimization Overview & Recommendations

Page size can be reduced by 58.4 kB (13%)

Content Size

433.5 kB

After Optimization

375.0 kB

  • HTML
  • Images
  • CSS

In fact, the total size of 521ad.com main page is 433.5 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. 65% of websites need less resources to load. Images take 281.6 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 49.6 kB

  • Original 62.2 kB
  • After minification 60.9 kB
  • After compression 12.6 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 49.6 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 916 B

  • Original 281.6 kB
  • After minification 280.7 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. 521 Ad images are well optimized though.

CSS Optimization

-9%

Potential reduce by 7.9 kB

  • Original 89.7 kB
  • After minification 89.7 kB
  • After compression 81.8 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. 521ad.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 31 (89%)

Requests Now

35

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 521 Ad. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

521ad.com

521ad.com

913 ms

sbi-styles.min.css

sbi-styles.min.css

417 ms

style.min.css

style.min.css

630 ms

blossomthemes-email-newsletter-public.min.css

blossomthemes-email-newsletter-public.min.css

418 ms

blossomthemes-toolkit-public.min.css

blossomthemes-toolkit-public.min.css

423 ms

styles.css

styles.css

422 ms

woocommerce-layout.css

woocommerce-layout.css

424 ms

woocommerce.css

woocommerce.css

624 ms

woocommerce.min.css

woocommerce.min.css

632 ms

owl.carousel.min.css

owl.carousel.min.css

636 ms

css

css

39 ms

style.css

style.css

844 ms

jquery.min.js

jquery.min.js

855 ms

jquery-migrate.min.js

jquery-migrate.min.js

828 ms

jquery.blockUI.min.js

jquery.blockUI.min.js

832 ms

add-to-cart.min.js

add-to-cart.min.js

833 ms

js.cookie.min.js

js.cookie.min.js

836 ms

woocommerce.min.js

woocommerce.min.js

1035 ms

wc-blocks.css

wc-blocks.css

1040 ms

isotope.pkgd.min.js

isotope.pkgd.min.js

1073 ms

imagesloaded.min.js

imagesloaded.min.js

1077 ms

masonry.min.js

masonry.min.js

1077 ms

blossomthemes-toolkit-public.min.js

blossomthemes-toolkit-public.min.js

1079 ms

all.min.js

all.min.js

2289 ms

v4-shims.min.js

v4-shims.min.js

1249 ms

index.js

index.js

1250 ms

index.js

index.js

1254 ms

sourcebuster.min.js

sourcebuster.min.js

1260 ms

order-attribution.min.js

order-attribution.min.js

1268 ms

owl.carousel.min.js

owl.carousel.min.js

1460 ms

owlcarousel2-a11ylayer.min.js

owlcarousel2-a11ylayer.min.js

1459 ms

custom.min.js

custom.min.js

1463 ms

modal-accessibility.min.js

modal-accessibility.min.js

1469 ms

sbi-sprite.png

sbi-sprite.png

610 ms

banner-img.jpg

banner-img.jpg

1629 ms

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woocommerce-smallscreen.css

woocommerce-smallscreen.css

210 ms

Accessibility Review

521ad.com accessibility score

87

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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.

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

521ad.com best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

521ad.com SEO score

91

Search Engine Optimization Advices

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

    ZH

  • Language Claimed

    ZH

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise 521ad.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it matches the claimed language. Our system also found out that 521ad.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

521ad.com

Open Graph description is not detected on the main page of 521 Ad. 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: