Tools & Wizards About Us
blackfire.tv screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 69% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

blackfire.tv

Blackfire | Solar-Ready Portable Power Stations, Rechargeable Accessories, and Tools

Page Load Speed

46.6 sec in total

First Response

2.6 sec

Resources Loaded

43.5 sec

Page Rendered

457 ms

blackfire.tv screenshot

About Website

Visit blackfire.tv now to see the best up-to-date Blackfire content and also check out these interesting facts you probably never knew about blackfire.tv

Blackfire Outdoor Gear by Klein Tools offers a selection of portable power options including solar generators, portable power stations, solar panels, rechargeable flashlights, headlamps, bluetooth® sp...

Visit blackfire.tv

Key Findings

We analyzed Blackfire.tv page load time and found that the first response time was 2.6 sec and then it took 43.9 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster.

Performance Metrics

blackfire.tv performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

14/100

10%

LCP (Largest Contentful Paint)

Value12.4 s

0/100

25%

SI (Speed Index)

Value8.7 s

16/100

10%

TBT (Total Blocking Time)

Value2,140 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.33

34/100

15%

TTI (Time to Interactive)

Value23.1 s

1/100

10%

Network Requests Diagram

blackfire.tv

2638 ms

style.css

1025 ms

common_index.css

1411 ms

ColorBoxs.css

1061 ms

style.css

1071 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 81% of them (73 requests) were addressed to the original Blackfire.tv, 3% (3 requests) were made to Combo.b.qq.com and 3% (3 requests) were made to Hb.crm2.qq.com. The less responsive or slowest element that took the longest time to load (20.4 sec) belongs to the original domain Blackfire.tv.

Page Optimization Overview & Recommendations

Page size can be reduced by 192.4 kB (31%)

Content Size

625.6 kB

After Optimization

433.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blackfire.tv main page is 625.6 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. 30% of websites need less resources to load. Images take 369.8 kB which makes up the majority of the site volume.

HTML Optimization

-64%

Potential reduce by 23.2 kB

  • Original 36.0 kB
  • After minification 34.8 kB
  • After compression 12.8 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 23.2 kB or 64% of the original size.

Image Optimization

-16%

Potential reduce by 59.4 kB

  • Original 369.8 kB
  • After minification 310.4 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. Obviously, Blackfire needs image optimization as it can save up to 59.4 kB or 16% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-45%

Potential reduce by 85.8 kB

  • Original 189.1 kB
  • After minification 172.3 kB
  • After compression 103.2 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 85.8 kB or 45% of the original size.

CSS Optimization

-78%

Potential reduce by 24.0 kB

  • Original 30.7 kB
  • After minification 25.4 kB
  • After compression 6.7 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. Blackfire.tv needs all CSS files to be minified and compressed as it can save up to 24.0 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 32 (37%)

Requests Now

87

After Optimization

55

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 87 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Blackfire. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blackfire.tv

blackfire.tv

2638 ms

style.css

style.css

1025 ms

common_index.css

common_index.css

1411 ms

ColorBoxs.css

ColorBoxs.css

1061 ms

style.css

style.css

1071 ms

jquery.min2.js

jquery.min2.js

11549 ms

jquery.plugin2.js

jquery.plugin2.js

3986 ms

script2.js

script2.js

1411 ms

Functions.js

Functions.js

2392 ms

FocusSlide.js

FocusSlide.js

1761 ms

ColorBoxs.js

ColorBoxs.js

2466 ms

iepngfix_tilebg.js

iepngfix_tilebg.js

2360 ms

lrtk.css

lrtk.css

2113 ms

js.js

js.js

2464 ms

wpa.php

wpa.php

856 ms

slider-arrow.png

slider-arrow.png

354 ms

logo.png

logo.png

1759 ms

index_more.gif

index_more.gif

342 ms

2015316154843.jpg

2015316154843.jpg

6313 ms

201531614525.jpg

201531614525.jpg

1989 ms

2015212142643.jpg

2015212142643.jpg

8320 ms

2014112022534.jpg

2014112022534.jpg

6488 ms

20141120225040.jpg

20141120225040.jpg

3161 ms

20141120224242.jpg

20141120224242.jpg

4157 ms

2014102210133.jpg

2014102210133.jpg

9389 ms

201499155924.jpg

201499155924.jpg

8320 ms

201482310423.jpg

201482310423.jpg

6309 ms

201481211142.jpg

201481211142.jpg

14425 ms

2014723223540.jpg

2014723223540.jpg

15191 ms

2014723223344.jpg

2014723223344.jpg

10804 ms

201472322325.jpg

201472322325.jpg

13579 ms

20147244145.jpg

20147244145.jpg

13534 ms

20147243533.jpg

20147243533.jpg

18145 ms

news_more.jpg

news_more.jpg

12204 ms

201536112341.jpg

201536112341.jpg

15272 ms

2015212174526.jpg

2015212174526.jpg

19681 ms

201512311345.jpg

201512311345.jpg

17179 ms

index_tools003s1.jpg

index_tools003s1.jpg

19542 ms

index_tools003s2.jpg

index_tools003s2.jpg

17784 ms

foot_001.jpg

foot_001.jpg

16296 ms

foot_003.jpg

foot_003.jpg

17318 ms

qq.jpg

qq.jpg

18993 ms

foot_002.gif

foot_002.gif

17660 ms

index.html

index.html

17971 ms

ad_002.jpg

ad_002.jpg

19647 ms

topbg.png

topbg.png

18309 ms

index_about_bg.jpg

index_about_bg.jpg

19646 ms

works_title.jpg

works_title.jpg

19645 ms

prev_next.png

prev_next.png

19314 ms

stat.php

stat.php

2460 ms

Panel.js

Panel.js

675 ms

localStorage.js

localStorage.js

703 ms

zs_design.png

zs_design.png

20346 ms

news_title.jpg

news_title.jpg

20335 ms

contains.js

contains.js

229 ms

r.cgi

r.cgi

946 ms

ta.php

ta.php

622 ms

crmqq.php

crmqq.php

10949 ms

wpa_first_heart_beat.php

wpa_first_heart_beat.php

561 ms

foot.jpg

foot.jpg

19928 ms

stat.htm

stat.htm

169 ms

core.php

core.php

776 ms

9.gif

9.gif

1530 ms

pic1.gif

pic1.gif

767 ms

icon.png

icon.png

19380 ms

icon_bg.png

icon_bg.png

17201 ms

overlay.png

overlay.png

16869 ms

app.gif

app.gif

2460 ms

ad_003.jpg

ad_003.jpg

20374 ms

ad_004.jpg

ad_004.jpg

19653 ms

lrtk.css

lrtk.css

5807 ms

jquery.js

jquery.js

7814 ms

lrtk.js

lrtk.js

7401 ms

hb.crm2.qq.com

hb.crm2.qq.com

527 ms

hb.crm2.qq.com

hb.crm2.qq.com

561 ms

1.jpg

1.jpg

1663 ms

6.jpg

6.jpg

2597 ms

2.jpg

2.jpg

1727 ms

7.jpg

7.jpg

1062 ms

3.jpg

3.jpg

1418 ms

8.jpg

8.jpg

4370 ms

4.jpg

4.jpg

1772 ms

9.jpg

9.jpg

2720 ms

5.jpg

5.jpg

3457 ms

10.jpg

10.jpg

3433 ms

11.jpg

11.jpg

4986 ms

16.jpg

16.jpg

4135 ms

14.jpg

14.jpg

4496 ms

icon.png

icon.png

5038 ms

hb.crm2.qq.com

hb.crm2.qq.com

1104 ms

Accessibility Review

blackfire.tv accessibility score

88

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

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

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

Links do not have a discernible name

Best Practices

blackfire.tv 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

Page has valid source maps

SEO Factors

blackfire.tv 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

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Blackfire.tv 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 Blackfire.tv main page’s claimed encoding is gb2312. 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

blackfire.tv

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