Tools & Wizards About Us

Report Summary

  • 31

    Performance

    Renders faster than
    51% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

batterybro.com

18650 Battery: Battery Bro (Let&#39s Spark a Revolution)

Page Load Speed

1.6 sec in total

First Response

86 ms

Resources Loaded

935 ms

Page Rendered

598 ms

About Website

Visit batterybro.com now to see the best up-to-date Battery Bro content for United States and also check out these interesting facts you probably never knew about batterybro.com

American team in Hong Kong. Worldwide shipping, the lowest wholesale pricing, & expert English support. All 18650 batteries guaranteed Grade A.

Visit batterybro.com

Key Findings

We analyzed Batterybro.com page load time and found that the first response time was 86 ms and then it took 1.5 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

batterybro.com performance score

31

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

51/100

10%

LCP (Largest Contentful Paint)

Value5.5 s

19/100

25%

SI (Speed Index)

Value6.0 s

46/100

10%

TBT (Total Blocking Time)

Value1,040 ms

26/100

30%

CLS (Cumulative Layout Shift)

Value0.233

53/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

batterybro.com

86 ms

3124660733.js

89 ms

styles.scss.css

48 ms

custom.css

35 ms

preloads.js

53 ms

Our browser made a total of 89 requests to load all elements on the main page. We found that 53% of them (47 requests) were addressed to the original Batterybro.com, 7% (6 requests) were made to Fonts.gstatic.com and 3% (3 requests) were made to Static.tumblr.com. The less responsive or slowest element that took the longest time to load (399 ms) belongs to the original domain Batterybro.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 67.5 kB (7%)

Content Size

943.2 kB

After Optimization

875.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Batterybro.com main page is 943.2 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. 60% of websites need less resources to load. Images take 597.3 kB which makes up the majority of the site volume.

HTML Optimization

-72%

Potential reduce by 60.2 kB

  • Original 83.5 kB
  • After minification 73.7 kB
  • After compression 23.3 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 9.8 kB, which is 12% 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 60.2 kB or 72% of the original size.

Image Optimization

-1%

Potential reduce by 5.0 kB

  • Original 597.3 kB
  • After minification 592.2 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. Battery Bro images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 2.0 kB

  • Original 243.5 kB
  • After minification 243.4 kB
  • After compression 241.5 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

-1%

Potential reduce by 198 B

  • Original 19.0 kB
  • After minification 19.0 kB
  • After compression 18.8 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. Batterybro.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 46 (61%)

Requests Now

76

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Battery Bro. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

batterybro.com accessibility score

92

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.

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

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

batterybro.com best practices score

58

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

Displays images with incorrect aspect ratio

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

batterybro.com SEO score

91

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 Batterybro.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 Batterybro.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

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