Tools & Wizards About Us
top-usb.com screenshot

Report Summary

  • 60

    Performance

    Renders faster than
    75% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

top-usb.com

Quality Custom USB Flash Drives & OTG USB Flash Drives factory from China

Page Load Speed

2.9 sec in total

First Response

339 ms

Resources Loaded

2.2 sec

Page Rendered

352 ms

top-usb.com screenshot

About Website

Visit top-usb.com now to see the best up-to-date Top USB content and also check out these interesting facts you probably never knew about top-usb.com

China leading provider of Custom USB Flash Drives and OTG USB Flash Drives, Shenzhen Suntrap Electronic Technology Co., Ltd. is OTG USB Flash Drives factory.

Visit top-usb.com

Key Findings

We analyzed Top-usb.com page load time and found that the first response time was 339 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

top-usb.com performance score

60

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

86/100

10%

LCP (Largest Contentful Paint)

Value2.9 s

81/100

25%

SI (Speed Index)

Value2.9 s

95/100

10%

TBT (Total Blocking Time)

Value820 ms

35/100

30%

CLS (Cumulative Layout Shift)

Value0.269

46/100

15%

TTI (Time to Interactive)

Value7.8 s

45/100

10%

Network Requests Diagram

top-usb.com

339 ms

www.top-usb.com

470 ms

guidefirstcommon.css

36 ms

guidefirstcommon.js

68 ms

common.css

130 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 83% of them (39 requests) were addressed to the original Top-usb.com, 15% (7 requests) were made to Googletagmanager.com and 2% (1 request) were made to Vr.ecerimg.com. The less responsive or slowest element that took the longest time to load (952 ms) belongs to the original domain Top-usb.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 179.1 kB (7%)

Content Size

2.5 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Top-usb.com main page is 2.5 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. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 134.7 kB

  • Original 161.0 kB
  • After minification 135.7 kB
  • After compression 26.2 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 25.2 kB, which is 16% 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 134.7 kB or 84% of the original size.

Image Optimization

-1%

Potential reduce by 30.4 kB

  • Original 2.3 MB
  • After minification 2.2 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. Top USB images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 7.9 kB

  • Original 73.6 kB
  • After minification 73.6 kB
  • After compression 65.7 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 7.9 kB or 11% of the original size.

CSS Optimization

-19%

Potential reduce by 6.1 kB

  • Original 31.9 kB
  • After minification 31.9 kB
  • After compression 25.8 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. Top-usb.com needs all CSS files to be minified and compressed as it can save up to 6.1 kB or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 13 (29%)

Requests Now

45

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Top USB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

top-usb.com

top-usb.com

339 ms

www.top-usb.com

www.top-usb.com

470 ms

guidefirstcommon.css

guidefirstcommon.css

36 ms

guidefirstcommon.js

guidefirstcommon.js

68 ms

common.css

common.css

130 ms

js

js

61 ms

js

js

111 ms

js

js

117 ms

jquery.js

jquery.js

127 ms

common_99701.js

common_99701.js

95 ms

guidecommon.js

guidecommon.js

97 ms

webim.js

webim.js

126 ms

js

js

185 ms

js

js

157 ms

js

js

216 ms

js

js

213 ms

getlive.html

getlive.html

952 ms

stats.js

stats.js

166 ms

ads.js

ads.js

162 ms

getseller.html

getseller.html

123 ms

logo.gif

logo.gif

123 ms

floatimage_chat.gif

floatimage_chat.gif

176 ms

close.png

close.png

177 ms

error.png

error.png

177 ms

css-sprite.png

css-sprite.png

179 ms

cl153061137-multifunction_wireless_charger.jpg

cl153061137-multifunction_wireless_charger.jpg

404 ms

cl145509145-ssd_internal_hard_drives.jpg

cl145509145-ssd_internal_hard_drives.jpg

357 ms

cl145509147-metal_usb_flash_drive.jpg

cl145509147-metal_usb_flash_drive.jpg

364 ms

cl145509146-otg_usb_flash_drives.jpg

cl145509146-otg_usb_flash_drives.jpg

325 ms

cl145509148-custom_usb_flash_drives.jpg

cl145509148-custom_usb_flash_drives.jpg

551 ms

cl145509144-crystal_usb_stick.jpg

cl145509144-crystal_usb_stick.jpg

557 ms

load_icon.gif

load_icon.gif

398 ms

cd37772931-shenzhen_suntrap_electronic_technology_co_ltd.jpg

cd37772931-shenzhen_suntrap_electronic_technology_co_ltd.jpg

462 ms

ecer_video_play.png

ecer_video_play.png

436 ms

cd37773660-shenzhen_suntrap_electronic_technology_co_ltd.jpg

cd37773660-shenzhen_suntrap_electronic_technology_co_ltd.jpg

501 ms

cd37773045-shenzhen_suntrap_electronic_technology_co_ltd.jpg

cd37773045-shenzhen_suntrap_electronic_technology_co_ltd.jpg

529 ms

ctm_icon_vr.png

ctm_icon_vr.png

532 ms

pt36845368-512gb_1tb_high_speed_open_mold_pvc_usb_2_0_and_3_0_customized_shapes.jpg

pt36845368-512gb_1tb_high_speed_open_mold_pvc_usb_2_0_and_3_0_customized_shapes.jpg

601 ms

pt161713596-secure_ssd_hard_drive_for_desktop_laptop_1tb_2tb_data_protection_aes_256_bit_encryption.jpg

pt161713596-secure_ssd_hard_drive_for_desktop_laptop_1tb_2tb_data_protection_aes_256_bit_encryption.jpg

570 ms

pt37508842-rohs_certificate_metal_usb_flash_drive_2_0_64gb_flash_chips_udp.jpg

pt37508842-rohs_certificate_metal_usb_flash_drive_2_0_64gb_flash_chips_udp.jpg

618 ms

pt166839084-3_0_20mbs_write_speed_micro_sd_card_with_full_memory_and_graded_a.jpg

pt166839084-3_0_20mbs_write_speed_micro_sd_card_with_full_memory_and_graded_a.jpg

624 ms

pt147367579-magnetic_foldable_fast_wireless_charging_pad_3_in_1_15w_10w_7_5w_5w.jpg

pt147367579-magnetic_foldable_fast_wireless_charging_pad_3_in_1_15w_10w_7_5w_5w.jpg

605 ms

pt147368218-3_in_1_multifunction_wireless_charger_humidifier_aroma_diffuser_15w_9v.jpg

pt147368218-3_in_1_multifunction_wireless_charger_humidifier_aroma_diffuser_15w_9v.jpg

671 ms

pt151372980-15w_5_in_one_new_truck_wireless_charger_for_iphone_13_14_pro_max_watch_airpods.jpg

pt151372980-15w_5_in_one_new_truck_wireless_charger_for_iphone_13_14_pro_max_watch_airpods.jpg

673 ms

pt166186182-3_in_1_magnetic_foldable_wireless_charger_print_logo_and_fast_charger.jpg

pt166186182-3_in_1_magnetic_foldable_wireless_charger_print_logo_and_fast_charger.jpg

719 ms

cover_thumb.jpg

cover_thumb.jpg

386 ms

ctm_icon_vrshow.png

ctm_icon_vrshow.png

33 ms

Accessibility Review

top-usb.com accessibility score

80

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

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

top-usb.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

top-usb.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 Top-usb.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 Top-usb.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

top-usb.com

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