Tools & Wizards About Us
blacklightsusa.com screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

blacklightsusa.com

Black Lights - UV lights - Ultra Bright Torches from Black Lights USA

Page Load Speed

1.8 sec in total

First Response

78 ms

Resources Loaded

1.5 sec

Page Rendered

148 ms

blacklightsusa.com screenshot

About Website

Visit blacklightsusa.com now to see the best up-to-date Black Lights USA content and also check out these interesting facts you probably never knew about blacklightsusa.com

Black Lights USA has all types of black lights for sale at great prices.

Visit blacklightsusa.com

Key Findings

We analyzed Blacklightsusa.com page load time and found that the first response time was 78 ms and then it took 1.7 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

blacklightsusa.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

37/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value3,010 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value17.4 s

4/100

10%

Network Requests Diagram

blacklightsusa.com

78 ms

js

101 ms

css

65 ms

css

74 ms

css

82 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 45% of them (25 requests) were addressed to the original Blacklightsusa.com, 11% (6 requests) were made to Fonts.gstatic.com and 11% (6 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (322 ms) relates to the external source Googletagmanager.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 144.7 kB (13%)

Content Size

1.1 MB

After Optimization

986.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Blacklightsusa.com main page is 1.1 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. 60% of websites need less resources to load. Images take 492.8 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 43.9 kB

  • Original 50.8 kB
  • After minification 32.0 kB
  • After compression 6.9 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 18.8 kB, which is 37% 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 43.9 kB or 86% of the original size.

Image Optimization

-12%

Potential reduce by 57.9 kB

  • Original 492.8 kB
  • After minification 435.0 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, Black Lights USA needs image optimization as it can save up to 57.9 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-5%

Potential reduce by 24.5 kB

  • Original 472.9 kB
  • After minification 472.9 kB
  • After compression 448.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-16%

Potential reduce by 18.4 kB

  • Original 114.9 kB
  • After minification 114.9 kB
  • After compression 96.5 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. Blacklightsusa.com needs all CSS files to be minified and compressed as it can save up to 18.4 kB or 16% of the original size.

Requests Breakdown

Number of requests can be reduced by 28 (61%)

Requests Now

46

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 46 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Black Lights USA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

blacklightsusa.com

blacklightsusa.com

78 ms

js

js

101 ms

css

css

65 ms

css

css

74 ms

css

css

82 ms

bootstrap.min.css

bootstrap.min.css

48 ms

bootstrap-theme.min.css

bootstrap-theme.min.css

60 ms

ie10-viewport-bug-workaround.css

ie10-viewport-bug-workaround.css

60 ms

theme.css

theme.css

57 ms

ie-emulation-modes-warning.js

ie-emulation-modes-warning.js

58 ms

megamenu.css

megamenu.css

62 ms

jquery.js

jquery.js

73 ms

megamenu_plugins.js

megamenu_plugins.js

96 ms

megamenu.js

megamenu.js

69 ms

js

js

322 ms

jquery.min.js

jquery.min.js

37 ms

bootstrap.min.js

bootstrap.min.js

122 ms

docs.min.js

docs.min.js

93 ms

ie10-viewport-bug-workaround.js

ie10-viewport-bug-workaround.js

72 ms

misc.jpg

misc.jpg

297 ms

cse.js

cse.js

273 ms

comodo_secure_seal_113x59_transp.png

comodo_secure_seal_113x59_transp.png

311 ms

analytics.js

analytics.js

217 ms

short.jpg

short.jpg

266 ms

background.jpg

background.jpg

248 ms

li.png

li.png

257 ms

logo3.png

logo3.png

265 ms

dropdown.png

dropdown.png

246 ms

395.jpg

395.jpg

262 ms

365.jpg

365.jpg

257 ms

fl.jpg

fl.jpg

284 ms

white.jpg

white.jpg

257 ms

facebook_64.png

facebook_64.png

275 ms

twitter_64.png

twitter_64.png

281 ms

S6uyw4BMUTPHjx4wWw.ttf

S6uyw4BMUTPHjx4wWw.ttf

66 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYA.ttf

78 ms

z7NOdRfiaC4Vd8hhoPzfb5vBTP2D6pumR_0.ttf

z7NOdRfiaC4Vd8hhoPzfb5vBTP2D6pumR_0.ttf

157 ms

z7NOdRfiaC4Vd8hhoPzfb5vBTP1d7ZumR_0.ttf

z7NOdRfiaC4Vd8hhoPzfb5vBTP1d7ZumR_0.ttf

88 ms

collect

collect

52 ms

cse_element__en.js

cse_element__en.js

37 ms

default+en.css

default+en.css

90 ms

default.css

default.css

97 ms

async-ads.js

async-ads.js

39 ms

branding.png

branding.png

15 ms

clear.png

clear.png

14 ms

kF0dKjg8KAQ

kF0dKjg8KAQ

144 ms

www-player.css

www-player.css

6 ms

www-embed-player.js

www-embed-player.js

36 ms

base.js

base.js

72 ms

ad_status.js

ad_status.js

219 ms

hkwQPN6l4_SNpHVtjw8vAhWItmV3wkCVMuKaKCsfQ0c.js

hkwQPN6l4_SNpHVtjw8vAhWItmV3wkCVMuKaKCsfQ0c.js

95 ms

embed.js

embed.js

46 ms

id

id

55 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

55 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

54 ms

Accessibility Review

blacklightsusa.com accessibility score

91

Accessibility Issues

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

blacklightsusa.com best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

blacklightsusa.com SEO score

100

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

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 Blacklightsusa.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 Blacklightsusa.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

blacklightsusa.com

Open Graph description is not detected on the main page of Black Lights USA. 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: