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blackvol.com screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

blackvol.com

Blackvol Forums - The best and most secure free script provider

Page Load Speed

26.1 sec in total

First Response

1.2 sec

Resources Loaded

23.7 sec

Page Rendered

1.1 sec

blackvol.com screenshot

About Website

Welcome to blackvol.com homepage info - get ready to check Blackvol best content for Iran right away, or after learning these important things about blackvol.com

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Key Findings

We analyzed Blackvol.com page load time and found that the first response time was 1.2 sec and then it took 24.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

blackvol.com performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

74/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value2,400 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.018

100/100

15%

TTI (Time to Interactive)

Value16.5 s

5/100

10%

Network Requests Diagram

blackvol.com

1233 ms

css.php

796 ms

materialdesignicons.min.css

667 ms

css.php

622 ms

preamble.min.js

346 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 57% of them (32 requests) were addressed to the original Blackvol.com, 16% (9 requests) were made to Googleads.g.doubleclick.net and 9% (5 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (19.7 sec) belongs to the original domain Blackvol.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 417.5 kB (40%)

Content Size

1.0 MB

After Optimization

621.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackvol.com main page is 1.0 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. 55% of websites need less resources to load. Javascripts take 591.2 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 287.7 kB

  • Original 325.3 kB
  • After minification 269.1 kB
  • After compression 37.6 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. This page needs HTML code to be minified as it can gain 56.2 kB, which is 17% 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 287.7 kB or 88% of the original size.

Image Optimization

-3%

Potential reduce by 2.7 kB

  • Original 78.4 kB
  • After minification 75.7 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. Blackvol images are well optimized though.

JavaScript Optimization

-21%

Potential reduce by 126.9 kB

  • Original 591.2 kB
  • After minification 591.2 kB
  • After compression 464.3 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 126.9 kB or 21% of the original size.

CSS Optimization

-1%

Potential reduce by 258 B

  • Original 43.6 kB
  • After minification 43.6 kB
  • After compression 43.4 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. Blackvol.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 20 (38%)

Requests Now

52

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackvol. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

blackvol.com

blackvol.com

1233 ms

css.php

css.php

796 ms

materialdesignicons.min.css

materialdesignicons.min.css

667 ms

css.php

css.php

622 ms

preamble.min.js

preamble.min.js

346 ms

js

js

146 ms

adsbygoogle.js

adsbygoogle.js

117 ms

adsbygoogle.js

adsbygoogle.js

90 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

326 ms

vendor-compiled.js

vendor-compiled.js

350 ms

core-compiled.js

core-compiled.js

758 ms

notice.min.js

notice.min.js

499 ms

ripple.min.js

ripple.min.js

521 ms

20210125.min.js

20210125.min.js

623 ms

index.min.js

index.min.js

683 ms

jquery.hoverIntent.min.js

jquery.hoverIntent.min.js

686 ms

defer.min.js

defer.min.js

601 ms

deferNodesCollapse.min.js

deferNodesCollapse.min.js

733 ms

deferWidthToggle.min.js

deferWidthToggle.min.js

734 ms

blackvol.png

blackvol.png

310 ms

uix-brandmark-.png

uix-brandmark-.png

308 ms

swirl.png

swirl.png

309 ms

b571cc96236ee08d16e988577f6e6181

b571cc96236ee08d16e988577f6e6181

99 ms

7.jpg

7.jpg

418 ms

1.jpg

1.jpg

323 ms

140.jpg

140.jpg

323 ms

11.jpg

11.jpg

399 ms

3.jpg

3.jpg

386 ms

2.jpg

2.jpg

399 ms

2956.jpg

2956.jpg

531 ms

2955.jpg

2955.jpg

532 ms

2954.jpg

2954.jpg

584 ms

2953.jpg

2953.jpg

585 ms

2952.jpg

2952.jpg

585 ms

7a816bc6d8ae5fff66612638d182ec8c

7a816bc6d8ae5fff66612638d182ec8c

98 ms

js

js

231 ms

analytics.js

analytics.js

225 ms

materialdesignicons-webfont.woff

materialdesignicons-webfont.woff

19684 ms

show_ads_impl.js

show_ads_impl.js

326 ms

zrt_lookup_nohtml.html

zrt_lookup_nohtml.html

180 ms

collect

collect

38 ms

ads

ads

603 ms

ads

ads

168 ms

ads

ads

226 ms

ads

ads

157 ms

ca-pub-3320002012162859

ca-pub-3320002012162859

635 ms

ads

ads

155 ms

ads

ads

137 ms

ads

ads

168 ms

ads

ads

136 ms

sodar

sodar

69 ms

materialdesignicons-webfont.ttf

materialdesignicons-webfont.ttf

2079 ms

sodar2.js

sodar2.js

44 ms

runner.html

runner.html

11 ms

aframe

aframe

39 ms

hhT7r2j7IM84IjrHPq4DliozylkjplqSUN38T7c3Pqk.js

hhT7r2j7IM84IjrHPq4DliozylkjplqSUN38T7c3Pqk.js

4 ms

Accessibility Review

blackvol.com accessibility score

81

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-*] attributes do not match their roles

High

button, link, and menuitem elements do not have accessible names.

High

ARIA IDs are not unique

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

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

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

blackvol.com best practices score

83

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

blackvol.com SEO score

89

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 Blackvol.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 Blackvol.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

blackvol.com

Open Graph data is detected on the main page of Blackvol. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: