Tools & Wizards About Us
tanfon.com screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

tanfon.com

TANFON solar power system, solar panel inverter, solar home system factory

Page Load Speed

3.4 sec in total

First Response

48 ms

Resources Loaded

2.8 sec

Page Rendered

616 ms

tanfon.com screenshot

About Website

Visit tanfon.com now to see the best up-to-date TANFON content for China and also check out these interesting facts you probably never knew about tanfon.com

German 5S technology safety industrial solar manufacturer with 360°guarantee, IOT patent, extend double warranty! maintenance of one-stop service.

Visit tanfon.com

Key Findings

We analyzed Tanfon.com page load time and found that the first response time was 48 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

tanfon.com performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

54/100

10%

LCP (Largest Contentful Paint)

Value3.5 s

62/100

25%

SI (Speed Index)

Value5.6 s

52/100

10%

TBT (Total Blocking Time)

Value630 ms

47/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.4 s

49/100

10%

Network Requests Diagram

tanfon.com

48 ms

tanfon.com

355 ms

bootstrap.min.css

251 ms

reset.css

263 ms

common.css

261 ms

Our browser made a total of 73 requests to load all elements on the main page. We found that 93% of them (68 requests) were addressed to the original Tanfon.com, 4% (3 requests) were made to Googletagmanager.com and 1% (1 request) were made to Termsfeed.com. The less responsive or slowest element that took the longest time to load (1.7 sec) relates to the external source 1.staticec.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 197.8 kB (11%)

Content Size

1.9 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tanfon.com main page is 1.9 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 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 128.2 kB

  • Original 167.2 kB
  • After minification 131.1 kB
  • After compression 39.0 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 36.1 kB, which is 22% 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 128.2 kB or 77% of the original size.

Image Optimization

-4%

Potential reduce by 53.3 kB

  • Original 1.5 MB
  • After minification 1.4 MB

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. TANFON images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 9.8 kB

  • Original 205.9 kB
  • After minification 205.9 kB
  • After compression 196.1 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

-15%

Potential reduce by 6.6 kB

  • Original 43.5 kB
  • After minification 43.5 kB
  • After compression 37.0 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. Tanfon.com needs all CSS files to be minified and compressed as it can save up to 6.6 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 19 (27%)

Requests Now

71

After Optimization

52

  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TANFON. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

tanfon.com

tanfon.com

48 ms

tanfon.com

tanfon.com

355 ms

bootstrap.min.css

bootstrap.min.css

251 ms

reset.css

reset.css

263 ms

common.css

common.css

261 ms

animate.min.css

animate.min.css

277 ms

jquery.min.js

jquery.min.js

23 ms

function.js

function.js

228 ms

swiper.min.css

swiper.min.css

260 ms

index.css

index.css

456 ms

other.css

other.css

508 ms

responsive.css

responsive.css

499 ms

swiper.min.js

swiper.min.js

265 ms

bootstrap.min.js

bootstrap.min.js

266 ms

wow.min.js

wow.min.js

293 ms

js

js

65 ms

js

js

124 ms

js

js

117 ms

cookie-consent.js

cookie-consent.js

51 ms

waypoints.min.js

waypoints.min.js

475 ms

jquery.counterup.min.js

jquery.counterup.min.js

601 ms

email-decode.min.js

email-decode.min.js

292 ms

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145 ms

icon-search.png

icon-search.png

82 ms

tf-arrow.png

tf-arrow.png

65 ms

logo.png

logo.png

64 ms

up_arr.png

up_arr.png

63 ms

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143 ms

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159 ms

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139 ms

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159 ms

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160 ms

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162 ms

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162 ms

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161 ms

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160 ms

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163 ms

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202 ms

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197 ms

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199 ms

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20220517171132a9gOcw.png

197 ms

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199 ms

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199 ms

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200 ms

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201 ms

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201 ms

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202 ms

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202 ms

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200 ms

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203 ms

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202 ms

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204 ms

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469 ms

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204 ms

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203 ms

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205 ms

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205 ms

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207 ms

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207 ms

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208 ms

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209 ms

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209 ms

ec_cs.js

ec_cs.js

1725 ms

head_pic3.png

head_pic3.png

79 ms

c10.png

c10.png

62 ms

arr-btn.png

arr-btn.png

63 ms

video-bg.jpg

video-bg.jpg

48 ms

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76 ms

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73 ms

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75 ms

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jt-d.png

45 ms

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60 ms

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65 ms

Accessibility Review

tanfon.com accessibility score

87

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

tanfon.com best practices score

75

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

SEO Factors

tanfon.com SEO score

77

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

High

Image elements do not have [alt] attributes

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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tanfon.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 Tanfon.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

tanfon.com

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