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Report generated 11 days ago
https://www.theta-gene.com
Your general SEO Checkup Score
Archived
57/100
SEO Score
Average SEO score of top 100 sites: 75%
This website received an SEO score of 57 out of 100, which is below the average score of 75. However, there are 22 important issues that need to be fixed to improve your website's ranking on search engines and enhance its overall performance.
22 Failed
3 Warnings
44 Passed
Issues to fix
HIGH
To provide a good user experience, Google recommends that sites should aim for a Largest Contentful Paint duration of 2.5 seconds or less.
HIGH
To provide a good user experience, Google recommends that sites should aim for a Cumulative Layout Shift score of 0.1 or less.
HIGH
It is recommended to avoid URL parameters and to use hyphens to separate words in the URL structure, rather than underscores.
HIGH
To address URL canonicalization issues, it is recommended to select a primary URL for your webpage and set up redirects from all other variations to the preferred one.
HIGH
Consider using structured data in your webpage as it can help search engines gain a better understanding of your content.
HIGH
Connect your webpage with social media networks using APIs or AddThis, as social signals are becoming increasingly important for search engines to validate a site's trustworthiness and authority.
HIGH
To improve the website experience for your visitors, it is recommended to eliminate any render-blocking resources on this webpage.
HIGH
Using images in a modern format can significantly reduce the file size and improve the loading speed of a webpage, providing a better user experience and potentially increasing engagement.
HIGH
To implement responsive design functionalities, it is recommended to use CSS media queries.
HIGH
Add descriptive and relevant "alt" attributes to all "img" tags to improve website accessibility.
HIGH
By creating a custom 404 error page with helpful links and information, users are more likely to stay on the site and continue to explore.
MEDIUM
Serving resources (images, JS, CSS) from a CDN service, could improve website loading times, reduce bandwidth costs and increase content availability and redundancy.
MEDIUM
To provide a good user experience, Google recommends that sites should aim for a First Contentful Paint value of 1.8 seconds or less.
MEDIUM
Avoid using distorted images, as they can have a negative impact on the user experience.
MEDIUM
Add a Google Analytics script to this website to help in diagnosing potential SEO issues by monitoring site visitors and traffic sources.
MEDIUM
Using social media meta tags can improve the appearance and content of shared links on social media platforms, potentially increasing click-through rates and engagement with the page.
MEDIUM
Avoid performance and security issues by adding "rel=noopener" or "rel=noreferrer" to your "target=_blank" links.
LOW
To protect against spam harvesters, consider hiding or obfuscating email addresses in your page code.
LOW
Using more than 20 HTTP requests on a webpage can negatively impact the loading time.
LOW
Consider moving inline CSS styles to an external stylesheet to improve site performance and maintain separation of content and design.
LOW
Strip out any unnecessary metadata to improve loading time, security, and privacy. Metadata should not exceed 16% of the image size.
LOW
Replace deprecated HTML tags with their modern equivalents or appropriate CSS rules.
Common SEO issues
Score: 53
Failed: 8
Warnings: 1
Passed: 13
Meta Title Test100% of top 100 sites passed
  • This webpage is using a title tag.
Text: 玺拓基因|Theta-gene-分子酶学专家
Length: 22 characters
Meta Description Test92% of top 100 sites passed
  • This webpage is using a meta description tag with a length of 230 characters. We recommend using well-written and inviting meta descriptions with a length between 150 and 220 characters (spaces included).
Text: 玺拓基因Theta-gene秉承“精工酶造，定义唯一；Precision Beyond Limits, Uniqueness Redefined”的理念，致力于为生物医学研究及健康产业提供优质创新产品及解决方案。我们提供各种工具酶、表达菌株、分子酶、重组蛋白、生化试剂、PCR试剂、基因编辑产品，等温扩增酶及试剂盒、感受态细胞、原核蛋白表达试剂盒、包涵体溶解复性试剂盒等产品。请访问我们的网站www.theta-gene.com或致电400-859-9953。
Length: 230 characters
Google Search Results Preview Test
Desktop version
https://www.theta-gene.com/玺拓基因|Theta-gene-分子酶学专家玺拓基因Theta-gene秉承“精工酶造，定义唯一；Precision Beyond Limits, Uniqueness Redefined”的理念，致力于为生物医学研究及健康产业提供优质创新产品及解决方案。我们提供各种工具酶、表达菌株、分子酶、重组蛋白、生化试剂、PCR试剂、基因编辑产品，等温扩增酶及试剂盒、感受态细胞、原核蛋白表达试剂盒、包涵体溶解复性试剂盒等产品。请访问我们的网站www.theta-gene.com或致电400-859-9953。
Mobile version
https://www.theta-gene.com/玺拓基因|Theta-gene-分子酶学专家玺拓基因Theta-gene秉承“精工酶造，定义唯一；Precision Beyond Limits, Uniqueness Redefined”的理念，致力于为生物医学研究及健康产业提供优质创新产品及解决方案。我们提供各种工具酶、表达菌株、分子酶、重组蛋白、生化试剂、PCR试剂、基因编辑产品，等温扩增酶及试剂盒、感受态细胞、原核蛋白表达试剂盒、包涵体溶解复性试剂盒等产品。请访问我们的网站www.theta-gene.com或致电400-859-9953。
Social Media Meta Tags Test89% of top 100 sites passed
  • This webpage is not using social media meta tags! While this type of meta tags don't affect what people see when they visit the webpage, they exist to provide information about it to search engines and social media platforms.
Keywords Cloud Test
antibodyarcablottingbuffercdna合成cellcleancapdsrnaelectrophoresiselisaenduroscriptgenegoodhicaphttpsigaseimmunologylimitslymeraselysisorderpcr系列polymeraseprecisionproteinpurificationredefinedreverserna合成shrnasupporttasrthetatigrtigrnatranscriptaseuniqueness专注于分子生物学工具酶与试剂盒的自主研发与生产个氨基酸为核心理念从基因序列设计到工业化生产以及含有抑制剂成分的体外诊断依托全球领先的重组蛋白技术平台和ai驱动的酶工程优化系统保真度与来源于逆转录病毒的反转录酶相当保真度为克隆感受态公司网址关于我们具有内在的反转录酶活性加帽效率反应成功率极高合成生物学等领域提供高纯度型内含子基因编辑基因编辑系统蛋白酶复杂二级结构定义唯一常规pcr延伸速率感受态细胞我们为生物医学研究打造每一款技术支持技术服务持续合成能力极强效率更高更容易递送来源于嗜热真细菌的热稳定性来源于来源于直肠杆菌极低的连接末端核苷酸偏好性极高的稳定性玺拓基因玺拓基因以科学家的严谨与创新者的魄力生成和极高的共转录加帽效率用于一步法疫苗开发的基因工程目前最好的等温扩增精工酶造结合蛋白片段融合蛋白联系我们聚合酶片段和蛋白表达纯化表达感受态订购电邮识别位点赋能精准医学的未来超强反转录酶超高连接效率适合长转录本适用于测序文库构建适用于用于体外翻译需要优化步骤最少靶向核酸酶高保真pcr高效高保真高稳健性高稳定性的核心原料与解决方案
Competitor Domains Test
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Heading Tags Test62% of top 100 sites passed
  • This webpage contains headings tags.
H1 tags
玺拓基因（Theta-gene）以“精工酶造，定义唯一”为核心理念，专注于分子生物学工具酶与试剂盒的自主研发与生产。依托全球领先的重组蛋白技术平台和AI驱动的酶工程优化系统，我们为生物医学研究、体外诊断、合成生物学等领域提供高纯度、高稳定性的核心原料与解决方案。从基因序列设计到工业化生产，玺拓基因以科学家的严谨与创新者的魄力，打造每一款“唯一性”产品，赋能精准医学的未来。
Robots.txt Test99% of top 100 sites passed
  • This website is using a robots.txt file.
https://www.theta-gene.com/robots.txt
Sitemap Test83% of top 100 sites passed
  • This website has a sitemap file.
https://www.theta-gene.com/sitemap.xml
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SEO Friendly URL Test29% of top 100 sites passed
  • This webpage contains URLs that are not SEO friendly!
See results list
Image Alt Test78% of top 100 sites passed
  • This webpage is using "img" tags with empty or missing "alt" attribute!
See full list
Image Aspect Ratio Test75% of top 100 sites passed
  • Not all image display dimensions match the natural aspect ratio! Fix aspect ratio issues to avoid distorted images on this website!
See results list
Inline CSS Test10% of top 100 sites passed
  • This webpage is using inline CSS styles!
See results list
Deprecated HTML Tags Test94% of top 100 sites passed
  • We found some HTML deprecated tags! You are advised to change these old tags with equivalent tags or proper CSS rules.
1font
Google Analytics Test72% of top 100 sites passed
  • A Google Analytics script is not detected on this page. While there are several tools available to monitor your site's visitors and traffic sources, Google Analytics is a free, commonly recommended program to help diagnose potential SEO issues.
Favicon Test100% of top 100 sites passed
  • favicon
    This website appears to have a favicon.
JS Error Test83% of top 100 sites passed
  • There are no severe JavaScript errors on this webpage.
Charset Declaration Test96% of top 100 sites passed
  • This webpage has a character encoding declaration.
Content-Type: text/html; charset=UTF-8
Social Media Test75% of top 100 sites passed
  • This webpage is not connected with social media using the API's provided by Facebook, Google +, Twitter, Pinterest, or using addthis.com
Speed optimizations
Score: 61
Failed: 8
Warnings: 0
Passed: 16
HTML Page Size Test23% of top 100 sites passed
  • The size of this webpage's HTML is 17.85 Kb and is under the average webpage's HTML size of 33 Kb. Faster loading websites result in a better user experience, higher conversion rates, and generally better search engine rankings.
DOM Size Test56% of top 100 sites passed
  • The Document Object Model (DOM) of this webpage has 695 nodes which is less than the recommended value of 1,500 nodes.
HTML Compression/GZIP Test99% of top 100 sites passed
  • This webpage is successfully compressed using gzip compression on your code. The HTML code is compressed from 121.83 Kb to 17.85 Kb (85% size savings). This helps ensure a faster loading webpage and improved user experience.
JS Execution Time Test53% of top 100 sites passed
  • The JavaScript code used by this webpage is executed in less than 2 seconds.
Page Objects Test
  • This webpage is using more than 20 http requests, which can slow down page loading and negatively impact user experience!
Content size by content type
Content type
Percent
Size
image
95.0 %
5.20 Mb
javascript
3.9 %
220.66 Kb
css
0.8 %
45.09 Kb
html
0.3 %
17.00 Kb
font
0.0 %
0 B
other
0.0 %
0 B
TOTAL
100%
5.47 Mb
Requests by content type
Content type
Percent
Requests
image
64.0 %
32
css
26.0 %
13
javascript
8.0 %
4
html
2.0 %
1
font
0.0 %
0
other
0.0 %
0
TOTAL
100%
50
Content size by domain
Domain
Percent
Size
prof3c4cdb5-pic12.ysjianzhan.cn
94.7 %
5.18 Mb
static.ysjianzhan.cn
4.8 %
271.77 Kb
theta-gene.com
0.5 %
25.82 Kb
TOTAL
100%
5.47 Mb
Requests by domain
Domain
Percent
Requests
static.ysjianzhan.cn
48.0 %
24
prof3c4cdb5-pic12.ysjianzhan.cn
42.0 %
21
theta-gene.com
10.0 %
5
TOTAL
100%
50
Page Cache Test (Server Side Caching)100% of top 100 sites passed
  • This webpage is using a caching mechanism. Caching helps speed page loading times as well as reduces server load.
Flash Test100% of top 100 sites passed
  • This webpage does not include flash objects (an outdated technology that was sometimes used to deliver rich multimedia content). Flash content does not work well on mobile devices, and is difficult for crawlers to interpret.
CDN Usage Test95% of top 100 sites passed
  • This webpage is not serving resources (images, javascript and css) from CDNs!
See results list
Modern Image Format Test43% of top 100 sites passed
  • This webpage is not serving images in a modern format! Image formats like JPEG 2000, JPEG XR, and WebP often provide better compression than PNG or JPEG, which means faster downloads and less data consumption.
See results list
Image Metadata Test72% of top 100 sites passed
  • This webpage is using images with large metadata (more than 16% of the image size)! Stripping out unnecessary metadata tags can improve not only the loading time but also the security and privacy of a webpage.
See results list
Image Caching Test95% of top 100 sites passed
  • This webpage is not using uncached images from same domain.
JavaScript Caching Test96% of top 100 sites passed
  • This webpage is not using uncached JavaScript resources from same domain!
CSS Caching Test98% of top 100 sites passed
  • This webpage is using cache headers for all CSS resources.
JavaScript Minification Test98% of top 100 sites passed
  • All JavaScript files used by this webpage are minified.
See results list
CSS Minification Test100% of top 100 sites passed
  • All CSS resources used by this webpage are minified.
See results list
Render Blocking Resources Test15% of top 100 sites passed
  • This webpage is using render blocking resources! Eliminating render-blocking resources can help this webpage to load significantly faster and will improve the website experience for your visitors.
See results list
Nested Tables Test100% of top 100 sites passed
  • This webpage is not using nested tables. This speeds up page loading time and optimizes the user experience.
Frameset Test100% of top 100 sites passed
  • This webpage does not use frames.
Doctype Test100% of top 100 sites passed
  • This webpage has a doctype declaration.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
URL Redirects Test97% of top 100 sites passed
  • This URL doesn't have any redirects (which could potentially cause site indexation issues and site loading delays).
Time To First Byte Test99% of top 100 sites passed
  • The Time To First Byte value of this webpage is 0.396 seconds. To provide a good user experience, Google recommends that sites should strive to have a TTFB of 0.8 seconds or less.

0.396 s

0.8 s

1.8 s

First Contentful Paint Test90% of top 100 sites passed
  • The First Contentful Paint value of this webpage is 4.447 seconds. To provide a good user experience, Google recommends that sites should strive to have a First Contentful Paint value of 1.8 seconds or less.

4.447 s

1.8 s

3 s

Largest Contentful Paint Test77% of top 100 sites passed
  • The Largest Contentful Paint duration of this webpage is 10.92 seconds. To provide a good user experience, Google recommends that sites should strive to have Largest Contentful Paint of 2.5 seconds or less.

10.92 s

2.5 s

4 s

Largest Contentful Paint element within the viewport:
<img style="position: absolute; left: 0%; top: 0%; width: 1920..." src="https://prof3c4cdb5-pic12.ysjianzhan.cn/upload/111..." alt="">
Cumulative Layout Shift Test91% of top 100 sites passed
  • The CLS score of this webpage is 0.5894. To provide a good user experience, Google recommends that sites should strive to have a CLS score of 0.1 or less.

0.5894

0.1

0.25

DOM element which contributes the most to CLS score:
Html: <img style="position: absolute; left: 0%; top: 0%; width: 1920..." src="https://prof3c4cdb5-pic12.ysjianzhan.cn/upload/666..." alt="">
Score: 0.0909
Server and security
Score: 66
Failed: 3
Warnings: 1
Passed: 6
URL Canonicalization Test93% of top 100 sites passed
SSL Checker and HTTPS Test100% of top 100 sites passed
  • This website is successfully using HTTPS, a secure communication protocol over the Internet.

The certificate is not used before the activation date.

The certificate has not expired.

The hostname "www.theta-gene.com" is correctly listed in the certificate.

The certificate should be trusted by all major web browsers.

The certificate was not revoked.

The certificate was signed with a secure hash.

Certificate Chain:
Server certificate
Common name
www.theta-gene.com
Subject Alternative Names (SANs)
www.theta-gene.com, theta-gene.com
Not valid before
Fri, February 21o 2025, 12:00:00 am (z)
Not valid after
Thu, May 22o 2025, 11:59:59 pm (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
Encryption Everywhere DV TLS CA - G2
Intermediate certificate
Common name
Encryption Everywhere DV TLS CA - G2
Organization
DigiCert Inc
Location
US
Not valid before
Mon, November 27o 2017, 12:46:40 pm (z)
Not valid after
Sat, November 27o 2027, 12:46:40 pm (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
DigiCert Global Root G2
Root certificate
Common name
DigiCert Global Root G2
Organization
DigiCert Inc
Location
US
Not valid before
Thu, August 1o 2013, 12:00:00 pm (z)
Not valid after
Fri, January 15o 2038, 12:00:00 pm (z)
Signature algorithm
sha256WithRsaEncryption
Issuer
DigiCert Global Root G2
Mixed Content Test (HTTP over HTTPS)100% of top 100 sites passed
  • This webpage does not use mixed content - both the initial HTML and all other resources are loaded over HTTPS.
HTTP2 Test99% of top 100 sites passed
  • This webpage is using the HTTP/2 protocol but not all resources are served over this protocol!
See results list
HSTS Test84% of top 100 sites passed
  • This webpage is using the Strict-Transport-Security header.
strict-transport-security: max-age=63072000; includesubdomains; preload
Safe Browsing Test100% of top 100 sites passed
  • This website is not currently listed as suspicious (no malware or phishing activity found).
Server Signature Test95% of top 100 sites passed
  • The server signature is off for this webpage.
Directory Browsing Test100% of top 100 sites passed
  • Directory browsing is disabled for this website.
Plaintext Emails Test97% of top 100 sites passed
  • We've found 2 email addresses in your page code! We advise you to protect email links in a way that hides them from the spam harvesters.
Mobile usability
Score: 50
Failed: 1
Warnings: 0
Passed: 2
Meta Viewport Test92% of top 100 sites passed
  • This webpage is using a viewport meta tag.
<meta name="viewport" content="width=1100" />
Media Query Responsive Test98% of top 100 sites passed
  • This webpage is not using CSS media queries. We recommend the use of this technique in order to implement responsive design functionalities.
Mobile Snapshot Test
Advanced SEO
Score: 37
Failed: 2
Warnings: 1
Passed: 7
Structured Data Test66% of top 100 sites passed
Custom 404 Error Page Test80% of top 100 sites passed
  • This website is not using a custom 404 error page! Default 404 error pages result in a poor experience - it can mislead users into thinking an entire site is down or broken, greatly increases the chance they leave the website entirely, and looks unprofessional. We recommend to have a custom 404 error page in order to improve the website's user experience by letting users know that only a specific page is missing/broken (and not the entire site), providing them helpful links, the opportunity to report bugs, and potentially track the source of broken links.
Noindex Tag Test99% of top 100 sites passed
  • This webpage does not use the noindex meta tag. This means that it can be indexed by search engines.
Canonical Tag Test93% of top 100 sites passed
  • This webpage does not use the canonical link tag.
Nofollow Tag Test
  • This webpage does not use the nofollow meta tag. This means that search engines will crawl all links from this webpage.
Disallow Directive Test
  • The robots.txt file does not use the disallow directive. This means that the whole website can be crawled by search engines.
Meta Refresh Test98% of top 100 sites passed
  • This webpage is not using a meta refresh tag.
SPF Records Test94% of top 100 sites passed
  • This DNS server is using an SPF record.
v=spf1 include:spf.hwmail.com.cn ~all
Ads.txt Validation Test67% of top 100 sites passed
  • This website doesn't use an ads.txt file! Ads.txt is a text file that contains a list of Authorized Digital Sellers. The purpose of ads.txt files is to give advertisers and advertising networks the ability to verify who is allowed to sell advertising on your website.
Spell Check Test
Check your webpage for misspellings!

Finding and fixing misspellings on your webpage will help both user experience and search engine rankings.

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