SEO report of lihantech.com
低温制冷机-中科力函(深圳）低温技术有限公司
www.lihantech.com/
中科力函（深圳）热声技术有限公司是由中国科学院理化技术研究所与深圳市力函科技有限公司于2007年在深圳合资设立。以中科院理化所罗二仓团队二十多年热声技术研究积累为基础，在低温制冷、热能发电和大温差热泵等三个基本方向上不断完善有关辅助技术，推进热声技术的商业应用 ...
Tasks
- Select one version of your site as main and make a redirect from other versions to that one.
- Avoid using deprecated HTML tags.
- Implement the viewport meta tag.
- Use "H" tags.
SEO
URL
Domain : www.lihantech.com/
Character length : 18
Title
低温制冷机-中科力函(深圳）低温技术有限公司
Description
中科力函（深圳）热声技术有限公司是由中国科学院理化技术研究所与深圳市力函科技有限公司于2007年在深圳合资设立。以中科院理化所罗二仓团队二十多年热声技术研究积累为基础，在低温制冷、热能发电和大温差热泵等三个基本方向上不断完善有关辅助技术，推进热声技术的商业应用。
Keywords (meta keywords)
低温制冷机|超低温制冷机|小型低温制冷机|小型制冷机|斯特林制冷机|热声低温制冷机|液氮制冷|脉管低温制冷机|热声技术|制冷机|静音制冷机|静音发电机|太阳能发电|sunpower|微型制冷机|液氮制冷|LNG液化
Error! Using “meta keywords” is meaningless in a while.
Error! Using “meta keywords” is meaningless in a while.
Open Graph Protocol
Error! The website does not use the OG (Open Graph) protocol.
Dublin Core
Dublin Core is not used
Underscores in the URLs
Good! No underscore (_) found in the URLs.
Search engine friendly URLs
Error! Not all URLs are SEO friendly on this website!
- http://www.lihantech.com/index.php?ac=article&at=list&tid=128 ("ABOUT")
- http://www.lihantech.com/index.php?ac=article&at=list&tid=129 ("PRODUCT")
- http://www.lihantech.com/index.php?ac=article&at=list&tid=130 ("R&D")
- http://www.lihantech.com/index.php?ac=article&at=list&tid=131 ("CONTACT")
- http://www.lihantech.com/index.php?ac=article&at=read&did=390
- http://www.lihantech.com/index.php?ac=article&at=read&did=391
- http://www.lihantech.com/index.php?ac=article&at=read&did=392
- http://www.lihantech.com/index.php?ac=article&at=read&did=330 ("Company Our company, Lihan Thermoacoustics Co. Ltd., was co-founded by the Technical Institute of Physics and Chemistry...")
- http://www.lihantech.com/index.php?ac=article&at=read&did=393 ("Mission Lihan's mission is to introduce thermoacoustics to the world. We want to achieve this by theoretical research, technol...")
- http://www.lihantech.com/index.php?ac=article&at=read&did=394 ("Culture Lihan's Core Values: Passion, Integrity, Teamwork, Innovation, Execellency and Effiency......")
- http://www.lihantech.com/index.php?ac=article&at=read&did=330 ("ABOUT")
- http://www.lihantech.com/index.php?ac=article&at=read&did=330 ("Company")
- http://www.lihantech.com/index.php?ac=article&at=read&did=394 ("Support")
- http://www.lihantech.com/index.php?ac=article&at=read&did=393 ("Culture")
- http://www.lihantech.com/index.php?ac=article&at=read&did=385 ("TC4177")
- http://www.lihantech.com/index.php?ac=article&at=read&did=386 ("TC4187")
- http://www.lihantech.com/index.php?ac=article&at=read&did=387 ("TC4580")
- http://www.lihantech.com/index.php?ac=article&at=read&did=388 ("TC5580")
- http://www.lihantech.com/index.php?ac=article&at=read&did=389 ("BG2201")
- http://www.lihantech.com/index.php?ac=article&at=list&tid=135 ("Research")
- http://www.lihantech.com/index.php?ac=article&at=list&tid=136 ("Development")
- http://www.lihantech.com/index.php?ac=article&at=list&tid=131 ("Contact Us")
- Expand
Checking the robots.txt file
The robots.txt file is missing!
Social
Social Engagement
No info found.
Content
Doctype
HTML 5
Encoding
Perfect! The character encoding is set: UTF-8.
Language
Error! No language localization is found.
Title
低温制冷机-中科力函(深圳）低温技术有限公司
Character length : 22
Good! The title’s length is between 10 and 70 characters.
Character length : 22
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 8%
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Error! The text / HTML code ratio is under 15 percent on this website. This value shows that the website has relatively few text content.
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
|---|---|---|---|---|---|
| 0 | 0 | 0 | 0 | 0 | 0 |
No "H" tags found
Heading structure in the source code
Word cloud
- company3
- lihan2
- bog2
- gas2
- thermoacoustics2
- culture2
- research2
- lihan's2
- lng2
- mission2
- powerful2
- product2
- r&d2
- cryocooler2
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| company | |||
| lihan | |||
| bog | |||
| gas | |||
| thermoacoustics | |||
| culture |
404 Page
The website has a 404 error page.
Flash content
Good! The website does not have any flash contents.
Frame
Good! The website does not use iFrame solutions.
Images
We found 7 images on this web page.
Alternate attributes for the following 7 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
Alternate attributes for the following 7 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
- http://www.lihantech.com/upfile/20160428142335_101.jpg
- http://www.lihantech.com/upfile/20160428145028_602.jpg
- http://www.lihantech.com/upfile/20160428120847_668.jpg
- http://www.lihantech.com/web_file/images/f_ico1.png
- http://www.lihantech.com/web_file/images/f_ico2.png
- http://www.lihantech.com/web_file/images/f_ico3.png
- http://www.lihantech.com/web_file/images/f_ico4.png
Technologies
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Redirection (www / not www)
Error! The web address is accessible with and without www!
Deprecated HTML elements
Good! No deprecated HTML tags are detected.
Printability
Suggestion! Unfortunately, no printer-friendly CSS found.
Meta Tag (viewport tag, mobile devices)
Error! The meta tag named viewport is missing.
Speed test
Server response time
The server response time is not fast enough: 0.64 seconds have passed until the page started to load.
Table layout
Good! No nested tables found.
Number of HTTP resources
64
Number of source domains
8
Render blocking resources
The elements below are blocking the “above the fold” rendering.
List of render blocking javascript files
List of render blocking javascript files
- http://static.lihantech.com/.. /interwords_en.min.js,libs.min.js?v=0b24f...
- http://static.m.lihantech.com/.. /interwords_en.js?v=0b24f3458de07880f8a00...
- http://static.m.lihantech.com/.. /lib.min.js?v=0b24f3458de07880f8a00f6e507...
- http://static.m.lihantech.com/.. /jquery-2.1.4.min.js?v=0b24f3458de07880f8...
- http://static.m.lihantech.com/.. /page.min.js?v=0b24f3458de07880f8a00f6e50...
- http://static.m.lihantech.com/.. /widget.min.js?v=0b24f3458de07880f8a00f6e...
- http://dfs.yun300.cn/.. /rBQBHFjrARaEW7A2AAAAAJ9BVUY0211.js
- http://static.lihantech.com/.. /??animate.css,iconfont.css,base.css?v=15...
- http://static.lihantech.com/.. /site_impt.css?t=20181207.css?v=154760633...
- http://static.lihantech.com/.. /page_impt_Home.css?t=20181207.css?v=1547...
- http://static.lihantech.com/css/e_ContentMajorStyleBox-001.css
- http://static.lihantech.com/css/e_ContentOrdinaryStyleBox-001.css
- http://static.lihantech.com/css/e_SideMajorStyleBox-001.css
- http://static.lihantech.com/css/w_rbox-001.css
- http://static.lihantech.com/css/c_ebizads_banner-49001002.css
- http://static.lihantech.com/css/c_product_list-01001007.css
- http://static.lihantech.com/css/w_wbox-001.css
- http://static.lihantech.com/css/w_btn-002.css
- http://static.lihantech.com/css/c_news_list-110002.css
- http://static.lihantech.com/css/page_Home.css?t=1547606246791
- http://static.lihantech.com/.. /tmpl_impt_8d800c8e-8e80-f587-c3ea-3c431c...
- http://www.lihantech.com/public/css/c_springGreeting-2019.css
- http://static.m.lihantech.com/.. /??animate.css,iconfont.css,base.css?v=15...
- http://static.m.lihantech.com/css/site_impt.css?v=1547606334000
- http://static.m.lihantech.com/css/page_impt_Home.css?v=1547606334000
- http://static.m.lihantech.com/.. /tmpl_impt_27bcec69-3608-3690-6440-90c025...
Speed test – Javascript
Javascript
Good! Just a few javascript files are detected on the website.
- http://www.lihantech.com/web_file/js/jquery.js
File size of all javascript files combined
519.02KB
Javascript minifying
You can save 973B (17% compression) on the analysed URL by minifying the javascript files.
Speed test – CSS
CSS
Good! Just a few CSS files are used on this website.
- http://www.lihantech.com/web_file/css/style.css
File size of all css files combined
496.34KB
CSS minifying
You can save 3.5KB (18% compression) on the analysed URL by minifying the CSS files.
- By minifying http://static.m.lihantech.com/css/page_impt_Home.css?v=1547606334000 you can save 1.9KB (22% compression rate)
- By minifying http://static.lihantech.com/css/c_product_list-01001007.css you can save 962B (14% compression rate)
- By minifying http://static.lihantech.com/.. /tmpl_impt_8d800c8e-8e80-f587-c3ea-3c431c... you can save 344B (12% compression rate)
- By minifying http://www.lihantech.com/public/css/c_springGreeting-2019.css you can save 250B (25% compression rate)
- By minifying http://static.lihantech.com/.. /site_impt.css?t=20181207.css?v=154760633... you can save 150B (16% compression rate)
Speed test – Compression
Uncompressed size of the of the HTML
82.02KB
Gzip compression
Your site uses compression.
Speed test – Browser cache
Number of static resources (image, JS, CSS)
59
Browser cache
The browser cache is set correctly for all elements.
Speed test – Images
File size of all images combined
1.47MB
Image optimisation
You can save 817.6KB (82% compression) by optimising the images below:
- By lossless compressing the http://img01.lihantech.com/.. /hFH8ESpZQGmmVAwjwlYWFA.jpg?t=w3 you can save 423.7KB (83%) data.
- By lossless compressing the http://img01.m.lihantech.com/.. /Gd5pDA6USLyJimLUru8ZgA.jpg you can save 109.4KB (74%) data.
- By lossless compressing the http://img01.m.lihantech.com/.. /9yTzMJPNQfWJ01cqx_9faA.jpg you can save 103.8KB (75%) data.
- By lossless compressing the http://static.lihantech.com/img/lihan.png you can save 31.5KB (96%) data.
- By lossless compressing the http://static.m.lihantech.com/img/lihan.png you can save 29.3KB (96%) data.
- By lossless compressing the http://static.lihantech.com/img/tubiao3.png you can save 23.5KB (96%) data.
- By lossless compressing the http://static.lihantech.com/img/tubiao2.png you can save 23.2KB (96%) data.
- By lossless compressing the http://www.lihantech.com/img/yuanyuan.png you can save 22.7KB (97%) data.
- By lossless compressing the http://static.lihantech.com/img/tubiao1.png you can save 22.1KB (96%) data.
- By lossless compressing the http://static.lihantech.com/img/globa.png you can save 21.7KB (97%) data.
- By lossless compressing the http://static.lihantech.com/img/erwq.jpg you can save 6KB (45%) data.
- By lossless compressing the http://www.lihantech.com/img/sn2.png you can save 196B (30%) data.
- By lossless compressing the http://www.lihantech.com/img/sn1.png you can save 163B (37%) data.
- By lossless compressing the http://www.lihantech.com/img/sn4.png you can save 162B (20%) data.
- By lossless compressing the http://www.lihantech.com/img/sn3.png you can save 134B (25%) data.
Links
We found a total of 29 different links.
Internal links: 26
External links: 3
Internal links: 26
External links: 3
External links:
| Link text (anchor) | Link strength |
|---|---|
| 粤ICP备09129328号 | |
| https://qy.weixin.qq.com | |
| W-Design |
Internal links:
| Link text (anchor) | Link strength |
|---|---|
| http://www.lihantech.com | |
| HOME | |
| ABOUT | |
| PRODUCT | |
| R&D | |
| CONTACT | |
| EN | |
| 中文 | |
| http://www.lihantech.com/index.php?ac=article&at=read&did=390 | |
| http://www.lihantech.com/index.php?ac=article&at=read&did=391 | |
| http://www.lihantech.com/index.php?ac=article&at=read&did=392 | |
| Company Our company, Lihan Thermoacoustics Co. Ltd., was co-founded by the Technical Institute of Physics and Chemistry... | |
| Mission Lihan's mission is to introduce thermoacoustics to the world. We want to achieve this by theoretical research, technol... | |
| Culture Lihan's Core Values: Passion, Integrity, Teamwork, Innovation, Execellency and Effiency...... | |
| ABOUT | |
| Company | |
| Support | |
| Culture | |
| TC4177 | |
| TC4187 | |
| TC4580 | |
| TC5580 | |
| BG2201 | |
| Research | |
| Development | |
| Contact Us |
Website security
IP
119.29.160.118
External hidden links
Good! No hidden external links found
Looking for eval()
Good! No eval(bas64_decode()) scripts are found
Checking for XSS vulnerability
No XSS vulnerability found
Email encryption
Warning! The website contains at least one unencrypted email address.
Icons
Favicon
Good! The website uses favicon.
Typos
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