Tools & Wizards About Us
nano7.com screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

nano7.com

欧洲纳米技术信息中文站 | Nanotechnology (nano7)

Page Load Speed

2.5 sec in total

First Response

373 ms

Resources Loaded

1.9 sec

Page Rendered

203 ms

nano7.com screenshot

About Website

Click here to check amazing Nano 7 content. Otherwise, check out these important facts you probably never knew about nano7.com

全球领先的纳米技术报告，欧洲顶级大学的纳米技术硕士课程，纳米技术海外推广服务。

Visit nano7.com

Key Findings

We analyzed Nano7.com page load time and found that the first response time was 373 ms and then it took 2.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

nano7.com performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

47/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value750 ms

39/100

30%

CLS (Cumulative Layout Shift)

Value0.082

94/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

Network Requests Diagram

nano7.com

373 ms

style.css

189 ms

default.css

146 ms

jquery.js

791 ms

easySlider1.5.js

276 ms

Our browser made a total of 63 requests to load all elements on the main page. We found that 41% of them (26 requests) were addressed to the original Nano7.com, 27% (17 requests) were made to Maps.google.com and 16% (10 requests) were made to Maps.gstatic.com. The less responsive or slowest element that took the longest time to load (859 ms) belongs to the original domain Nano7.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 427.3 kB (43%)

Content Size

999.9 kB

After Optimization

572.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nano7.com main page is 999.9 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. 50% of websites need less resources to load. Javascripts take 546.9 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 61.1 kB

  • Original 70.9 kB
  • After minification 69.4 kB
  • After compression 9.8 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 61.1 kB or 86% of the original size.

Image Optimization

-1%

Potential reduce by 2.1 kB

  • Original 371.9 kB
  • After minification 369.8 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. Nano 7 images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 356.3 kB

  • Original 546.9 kB
  • After minification 544.9 kB
  • After compression 190.6 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 356.3 kB or 65% of the original size.

CSS Optimization

-77%

Potential reduce by 7.8 kB

  • Original 10.1 kB
  • After minification 8.4 kB
  • After compression 2.4 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. Nano7.com needs all CSS files to be minified and compressed as it can save up to 7.8 kB or 77% of the original size.

Requests Breakdown

Number of requests can be reduced by 24 (41%)

Requests Now

58

After Optimization

34

  • Images
  • JavaScript
  • CSS

The browser has sent 58 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nano 7. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

nano7.com

nano7.com

373 ms

style.css

style.css

189 ms

default.css

default.css

146 ms

jquery.js

jquery.js

791 ms

easySlider1.5.js

easySlider1.5.js

276 ms

maps

maps

28 ms

counter.js

counter.js

8 ms

logo.gif

logo.gif

158 ms

header_text_bg.gif

header_text_bg.gif

161 ms

more-button.gif

more-button.gif

158 ms

banner1.jpg

banner1.jpg

409 ms

simple_ul_li.gif

simple_ul_li.gif

177 ms

details-button.gif

details-button.gif

179 ms

apply-button.gif

apply-button.gif

233 ms

banner2.jpg

banner2.jpg

355 ms

banner3.jpg

banner3.jpg

464 ms

banner4.jpg

banner4.jpg

859 ms

top_bg.gif

top_bg.gif

292 ms

img_top.gif

img_top.gif

283 ms

top_img_1.gif

top_img_1.gif

355 ms

top_img_2.gif

top_img_2.gif

354 ms

top_img_3.gif

top_img_3.gif

380 ms

top_img_4.gif

top_img_4.gif

405 ms

universitysearchbox1.gif

universitysearchbox1.gif

436 ms

button.gif

button.gif

435 ms

common.js

common.js

18 ms

map.js

map.js

19 ms

overlay.js

overlay.js

16 ms

util.js

util.js

14 ms

marker.js

marker.js

15 ms

footer_bg.gif

footer_bg.gif

371 ms

StaticMapService.GetMapImage

StaticMapService.GetMapImage

99 ms

t.php

t.php

150 ms

onion.js

onion.js

29 ms

openhand_8_8.cur

openhand_8_8.cur

20 ms

l_arrow.gif

l_arrow.gif

308 ms

r_arrow.gif

r_arrow.gif

340 ms

ViewportInfoService.GetViewportInfo

ViewportInfoService.GetViewportInfo

74 ms

stats.js

stats.js

16 ms

controls.js

controls.js

12 ms

infowindow.js

infowindow.js

49 ms

transparent.png

transparent.png

15 ms

css

css

62 ms

google4.png

google4.png

42 ms

mapcnt6.png

mapcnt6.png

70 ms

sv5.png

sv5.png

72 ms

marker.png

marker.png

71 ms

tmapctrl.png

tmapctrl.png

30 ms

cb_scout5.png

cb_scout5.png

32 ms

tmapctrl4.png

tmapctrl4.png

28 ms

imgs8.png

imgs8.png

31 ms

vt

vt

8 ms

vt

vt

20 ms

vt

vt

21 ms

vt

vt

23 ms

vt

vt

23 ms

vt

vt

23 ms

vt

vt

41 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

14 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

13 ms

Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf

Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf

14 ms

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

d-6IYplOFocCacKzxwXSOKCWcynf_cDxXwCLxiixG1c.ttf

14 ms

AuthenticationService.Authenticate

AuthenticationService.Authenticate

77 ms

Accessibility Review

nano7.com accessibility score

89

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

Best Practices

nano7.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

SEO Factors

nano7.com SEO score

92

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

    ZH

  • Language Claimed

    N/A

  • Encoding

    GB2312

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nano7.com can be misinterpreted by Google and other search engines. Our service has detected that Chinese 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 Nano7.com 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

nano7.com

Open Graph description is not detected on the main page of Nano 7. 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: