SEO report of tantech.com.cn
碳博士控股-点亮城市智慧能源
www.tantech.com.cn/
碳博士控股，美国纳斯达克上市企业，是一家集研发、生产、销售为一体的新材料、新能源的企业。主要生产新能源汽车以及超级电容炭、竹醋、有机肥、烧烤炭、清洁剂等竹炭衍生品 ...
Tasks
- Make the site mobile device friendly.
- 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.
- Try to make your site load faster.
SEO
URL
Domain : www.tantech.com.cn/
Character length : 19
Title
碳博士控股-点亮城市智慧能源
Description
碳博士控股，美国纳斯达克上市企业，是一家集研发、生产、销售为一体的新材料、新能源的企业。主要生产新能源汽车以及超级电容炭、竹醋、有机肥、烧烤炭、清洁剂等竹炭衍生品。
Keywords (meta keywords)
碳博士，碳博士控股，浙江富来森，富来森，竹炭，新能源汽车，竹醋，有机肥，超级电容碳，纳斯达克，纳斯达克指数，中概股，中国概念股
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
Good! The website uses SEO friendly URLs.
Checking the robots.txt file
The robots.txt file is missing!
Social
Social Engagement
No info found.
Content
Doctype
XHTML 1.0 Transitional
Encoding
Perfect! The character encoding is set: GB2312.
Language
Error! No language localization is found.
Title
碳博士控股-点亮城市智慧能源
Character length : 14
Good! The title’s length is between 10 and 70 characters.
Character length : 14
Good! The title’s length is between 10 and 70 characters.
Text / HTML ratio
Ratio : 31%
Good! The text / code ratio is between 25 and 70 percent.
Good! The text / code ratio is between 25 and 70 percent.
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
- ðâîåöððä2
Keyword matrix
| word | title | descriptions | heading |
|---|---|---|---|
| ðâîåöððä |
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 10 images on this web page.
Alternate attributes for the following 9 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
Alternate attributes for the following 9 images are missing. Search engines use "alt" tags to understand image content efficiently. We strongly recommend fixing this issue.
- http://www.tantech.com.cn/image/telephone.jpg
- http://www.tantech.com.cn/image/top_new_laba.jpg
- http://www.tantech.com.cn/images/banner.jpg
- http://www.tantech.com.cn/flash/1.jpg
- http://www.tantech.com.cn/image/5.jpg
- http://www.tantech.com.cn/image/1.jpg
- http://www.tantech.com.cn/image/4.jpg
- http://www.tantech.com.cn/image/2.jpg
- http://www.tantech.com.cn/image/3.jpg
Technologies
Mobile optimization
Error! This website is not optimized for mobile devices... It is optimized for devices which have at least 1002px wide display!
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 fast enough.
Loading time
9,207 ms
Table layout
Good! No nested tables found.
Number of HTTP resources
29
Number of source domains
1
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://www.tantech.com.cn/js/ark.js
- http://www.tantech.com.cn/css/style.css
- http://www.tantech.com.cn/css/index.css
Speed test – Javascript
Javascript
Good! Just a few javascript files are detected on the website.
- http://www.tantech.com.cn/js/ark.js
File size of all javascript files combined
8.48KB
Javascript minifying
You can save 428B (20% 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.tantech.com.cn/css/style.css
- http://www.tantech.com.cn/css/index.css
File size of all css files combined
12.09KB
CSS minifying
Great! The CSS elements are minified.
Speed test – Compression
Uncompressed size of the of the HTML
10.60KB
Gzip compression
Your site uses compression.
Speed test – Browser cache
Number of static resources (image, JS, CSS)
28
Browser cache
The browser cache is not set correctly for all elements.
| URL | Duration |
|---|---|
| http://www.tantech.com.cn/css/index.css | Expiry time is not specified |
| http://www.tantech.com.cn/css/style.css | Expiry time is not specified |
| http://www.tantech.com.cn/image/4.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/5.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/LOGO.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/banner_lbbg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/banner_ltbg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/banner_rbbg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/banner_rtbg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/damen.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/main_new_tb.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/nav_bg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/nav_pro_bg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/nav_sub.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/news_labg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/news_t_bg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/page_bg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/product_title_lbg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/product_title_rbg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/telephone.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/top_new_bg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/top_new_laba.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/top_new_lbg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/top_new_rbg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/video_Bbg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/image/video_bg.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/images/banner-1.jpg | Expiry time is not specified |
| http://www.tantech.com.cn/js/ark.js | Expiry time is not specified |
Speed test – Images
File size of all images combined
365.55KB
Image optimisation
You can save 183.9KB (51% compression) by optimising the images below:
- By lossless compressing the http://www.tantech.com.cn/images/banner-1.jpg you can save 74.3KB (50%) data.
- By lossless compressing the http://www.tantech.com.cn/image/5.jpg you can save 24.4KB (46%) data.
- By lossless compressing the http://www.tantech.com.cn/image/4.jpg you can save 23.6KB (47%) data.
- By lossless compressing the http://www.tantech.com.cn/image/LOGO.jpg you can save 22.2KB (71%) data.
- By lossless compressing the http://www.tantech.com.cn/image/damen.jpg you can save 20.7KB (47%) data.
- By lossless compressing the http://www.tantech.com.cn/image/video_Bbg.jpg you can save 8.6KB (65%) data.
- By lossless compressing the http://www.tantech.com.cn/image/telephone.jpg you can save 4.6KB (69%) data.
- By lossless compressing the http://www.tantech.com.cn/image/news_labg.jpg you can save 3.2KB (66%) data.
- By lossless compressing the http://www.tantech.com.cn/image/nav_pro_bg.jpg you can save 823B (53%) data.
- By lossless compressing the http://www.tantech.com.cn/image/main_new_tb.jpg you can save 445B (50%) data.
- By lossless compressing the http://www.tantech.com.cn/image/video_bg.jpg you can save 354B (45%) data.
- By lossless compressing the http://www.tantech.com.cn/image/nav_bg.jpg you can save 185B (30%) data.
- By lossless compressing the http://www.tantech.com.cn/image/banner_rbbg.jpg you can save 120B (22%) data.
- By lossless compressing the http://www.tantech.com.cn/image/banner_rtbg.jpg you can save 115B (22%) data.
- By lossless compressing the http://www.tantech.com.cn/image/product_title_rbg.jpg you can save 106B (21%) data.
- By lossless compressing the http://www.tantech.com.cn/image/banner_ltbg.jpg you can save 101B (20%) data.
Links
We found a total of 36 different links.
Internal links: 31
External links: 5
Internal links: 31
External links: 5
External links:
| Link text (anchor) | Link strength |
|---|---|
| ¼òÌåÖÐÎÄ | |
| English | |
| ¸»À´ÉÄÜÔ´ÓÐÏÞ¹«Ë¾ | |
| Òæïµç¶¯³µ | |
| ²©Ê¿Ã¨ |
Internal links:
| Link text (anchor) | Link strength |
|---|---|
| @ ¼ÓÈëÊÕ²Ø | |
| Ê× Ò³ | |
| ¹ØÓÚÎÒÃÇ | |
| ÐÂÎÅÖÐÐÄ | |
| ²úÆ·ÖÐÐÄ | |
| Æ·ÅÆÖÐÐÄ | |
| È˲ÅÕÐƸ | |
| Õã½Ê¡³µÁ¾ÐÐÒµ¹ÜÀí»áÒéôßÊ¡Æû³µ¹¤Òµ¼¼Êõ´´ | |
| ¸»À´É¼¯ÍÅ¡°Çý¶¯Ë«Òí ·Å·ÉÃÎÏë | |
| ¸»À´É¼¯ÍÅÓëÈÙÖ®Áª¿Æ¼¼¹«Ë¾Ç©¶©Õ½ÂÔºÏ×÷Ð | |
| ¡°2017´ó½¡¿µÐ²úÈÚÂÛ̳¡±Â¡ÖؾÙÐи»À´ | |
| ÀöË®ÊÐίÃØÊ鳤¡¢Á«¶¼ÇøίÊé¼Ç¶ÅÐËÁÖ×ß·Ãο | |
| ̼²©Ê¿¿Ø¹ÉÒ»¿ÆÑÐʾ·¶ÏîÄ¿ÁÐÈëÕã½Ê¡ÖØ´ó¿Æ | |
| ̼²©Ê¿¿Ø¹É¶ÊÂÕÅÒ¶·¼ÊÜÑû²ÎÓë³ï±¸ÕãÉÌ×Ü»á | |
| ̼²©Ê¿¿Ø¹É¼Ó´ó¿ÆÑÐͶÈëÑз¢Ð²úÆ·£¬ÌáÉý²ú | |
| È«Ê¡2016ÃñÆó ¡°Ë«¶Ô½Ó¡±»î | |
| »ÀȻһÐÂӼαö | |
| ¡¶ÃÀ¹úÖÐÎÄͶ×ÊÍø¡·Á¬Ðø¿¯ÎÄÍƼö̼²©Ê¿¿Ø¹É | |
| ̼²©Ê¿¿Ø¹ÉCEOÍõÕýÓôÏÈÉú²Î¼ÓÈËÃñÍøÖиŠ| |
| ̼²©Ê¿¿Ø¹ÉCEOÍõÕýÓô×ß·ÃÈËÃñÍø | |
| ¸»À´É¼¯ÍÅÈ«³Ì²ÎÓëµÚÊ®½ìÇìÔªÏã¹½ÎÄ»¯½ÚÊÕ | |
| http://www.tantech.com.cn/product.html | |
| http://www.tantech.com.cn/product-stuff.html | |
| http://www.tantech.com.cn/product-chemical.html | |
| http://www.tantech.com.cn/product-vinegar.html | |
| http://www.tantech.com.cn/product-barbecue.html | |
| ÐÂÄÜÔ´Æû³µ | |
| µç¼«²ÄÁÏ | |
| ÖñÌ¿Öñ´× | |
| Çå½àÈÕ»¯ | |
| ̼¿¾Éú»î |
Website security
IP
42.159.29.86
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
Good! We have not found any unencrypted email addresses.
Sites on same ip
Icons
Favicon
Error! No favicon is found. Using favicon helps to build a better brand quicker.
Typos
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