Nibbler SEO audit for www.issdu.com.tw
Summary
Overall8.1
The overall score for this website.
Accessibility8.7
How accessible the website is to mobile and disabled users.
The following tests contribute to this score:
Experience7.0
How satisfying the website is likely to be for users.
The following tests contribute to this score:
Marketing5.7
How well marketed, and popular the website is.
The following tests contribute to this score:
Technology7.3
How well designed and built the website is.
The following tests contribute to this score:
Nibbler tested a sample of 5 pages from this website at 12:13 on 28 Mar 2024 (GMT).
Top priorities for website improvement
- Add meaningful anchor text that describes the link's destination. If the link contains an image, ensure you have provided alt text. (read more)
- Ensure your web server returns a 404 HTTP status code for error pages. (read more)
- Sign up for a Twitter account and make sure it is linked to from your site. (read more)
Twitter0.0
This website does not appear to be associated with a Twitter account.
- This website did not contain a link to Twitter.
- Sign up for a Twitter account and make sure it is linked to from your site.
Server behaviour2.8
404 page
Compression
- This website does not return a 404 error HTTP status code for missing pages. This is bad because search engines like Google might mistake this for a real page of content.
- Ensure your web server returns a 404 HTTP status code for error pages.
- This website was not served using GZIP encoding. GZIP compression is widely supported and reduces the load time of a web page.
- Enable GZIP compression on your web server or in your application.
- This website returns page content with or without a trailing slash on the URLs. Search engines might see these as separate pages with duplicate content which they could penalise for.
- Use a 301 redirect or a canonical meta tag to force search engines to see the correct version.
- This website uses a temporary (HTTP 302) redirect from http://issdu.com.tw to http://www.issdu.com.tw. This is OK, but a permanent (HTTP 301) redirect is considered best practice.
- If possible, change the temporary redirect to a permanent (HTTP 301) redirect.
URL format5.2
4 URLs are less than ideal
- 4 URLs include a file extension.
- Avoid use of file extensions wherever possible. File extensions appear at the end of web addresses, and have several negative effects. They make the address harder to remember or type (particularly for non-technical users), and can reveal the underlying technology of the website making it very slightly more vulnerable to hackers. They also tie the implementation of the website to a specific technology, which can make subsequent migration of URLs difficult. Consider URL rewriting as an effective and transparent means of creating appropriate URLs.
Page extensions
- Avoid use of file extensions wherever possible. File extensions appear at the end of web addresses, and have several negative effects. They make the address harder to remember or type (particularly for non-technical users), and can reveal the underlying technology of the website making it very slightly more vulnerable to hackers. They also tie the implementation of the website to a specific technology, which can make subsequent migration of URLs difficult. Consider URL rewriting as an effective and transparent means of creating appropriate URLs.
Internal links5.8
- 69 links have no text describing their destination. Links on a page should describe their destination for the benefit of both screen readers and search engine spiders.
- Add meaningful anchor text that describes the link's destination. If the link contains an image, ensure you have provided alt text.
Empty link text
- Add meaningful anchor text that describes the link's destination. If the link contains an image, ensure you have provided alt text.
Amount of content7.4
Rendering Chart...
- This website has an average of 215 words per page. The amount of content on a website has been shown to correlate with its search engine ranking.
- Consider the amount of text on this website and increase it if appropriate.
Amount of content discovered
| Page | Characters | Words |
| www.issdu.com.tw/ | 2681 | 246 |
| www.issdu.com.tw/index.php | 2681 | 246 |
| www.issdu.com.tw/about.php | 2697 | 236 |
| www.issdu.com.tw/news.php | 1642 | 174 |
| www.issdu.com.tw/contact.php | 1586 | 171 |
Images9.2
3% of images have a clearly defined size
No images are being resized by the browser
- Most images (97.0%) don't have defined sizes using width and height attributes in the HTML. These attributes are optional, but strongly recommended as they help the browser arrange the page more quickly.
- Add width and height attributes to all image tags. The width and height you specify should be the same as the source image. If you want to resize an image in the browser, use CSS.
Non Explicitly Sized Images
- Add width and height attributes to all image tags. The width and height you specify should be the same as the source image. If you want to resize an image in the browser, use CSS.
- 5 images are not in a web-friendly format.
- Make sure all images on this website are JPEG, PNG, SVG or GIF format.
Non Web-Format Images
Image URL Format Page URL www.issdu.com.tw/.../6CNKE1671697405.jpg unavailable www.issdu.com.tw/ unknown www.issdu.com.tw/index.php unknown www.issdu.com.tw/about.php unknown www.issdu.com.tw/news.php unknown www.issdu.com.tw/contact.php unknown
- Make sure all images on this website are JPEG, PNG, SVG or GIF format.
- 1 images on this website could not be downloaded. Broken images may cause the website to display incorrectly for visitors.
- Check any images which could not be downloaded and fix them if necessary.
Headings9.5
- All pages were found to use defined headings. This is excellent as it allows visitors and search engines to summarise the content of webpages quickly. Correctly defined headings aid accessibility and are particularly important for search engine optimisation.
- Many headings (11.0%) were found to be empty, or incorrectly defined. Empty or invalid headings are of no value to search engines and make a website less accessible.
- Make sure all headings have content which is relevant to the page of content.
Page headings detail
Mobile10.0
- All of this website appears to be optimised for viewing on a mobile phone or a tablet.
Media specific CSS detected
Analytics10.0
100% of pages use analytics
Google Tag Manager
- Every page in this website is using Google Tag Manager. This is excellent and should allow for a complete analysis of visitor behaviour.
Page titles10.0
100% of pages have defined titles
0% of page titles are weak
- All pages were found to use page titles appropriately. Page titles appear in search results and at the top of the browser's window when visiting the site. Appropriate page titles are particularly important for search engine optimisation.
Page titles
Meta tags10.0
This is how this website will look in Google search listings:
數聯資安｜專業資安服務領導廠商 ISSDU INC.
www.issdu.com.tw/
...
- All pages were found to include a meta description. This is good because search engines (like Google) show this text in search result pages.
Meta Tags (name attribute)
| Page URL | Name | Content |
| www.issdu.com.tw/ | viewport | width=device-width, initial-scale=1, maximum-scale=1, user-scalable=1 |
| www.issdu.com.tw/ | keywords | 數聯資安, 資訊安全, 資安服務, 弱點掃描, 滲透測試, 資安健診, SOC監控服務, ISO27001, ISO29100, ISMS, PIMS, 原始碼檢測, 端點安全 |
| www.issdu.com.tw/ | description | 數聯資安為國內頂尖專業資安服務領導廠商，擁有全台首座企業級資安監控中心，2009年成為遠傳100%子公司後，整合豐富集團資通訊網路資源，持續深耕資安服務領域，超過15年以上的專業資安能量，提供客戶全方位資安服務包括：資安監控、資安檢測、資安治理、以及多樣化資安解決方案。 |
| www.issdu.com.tw/ | facebook-domain-verification | ge9bs5ctvjjz7du6eifr3po60grz8x |
| www.issdu.com.tw/index.php | viewport | width=device-width, initial-scale=1, maximum-scale=1, user-scalable=1 |
| www.issdu.com.tw/index.php | keywords | 數聯資安, 資訊安全, 資安服務, 弱點掃描, 滲透測試, 資安健診, SOC監控服務, ISO27001, ISO29100, ISMS, PIMS, 原始碼檢測, 端點安全 |
| www.issdu.com.tw/index.php | description | 數聯資安為國內頂尖專業資安服務領導廠商，擁有全台首座企業級資安監控中心，2009年成為遠傳100%子公司後，整合豐富集團資通訊網路資源，持續深耕資安服務領域，超過15年以上的專業資安能量，提供客戶全方位資安服務包括：資安監控、資安檢測、資安治理、以及多樣化資安解決方案。 |
| www.issdu.com.tw/index.php | facebook-domain-verification | ge9bs5ctvjjz7du6eifr3po60grz8x |
| www.issdu.com.tw/about.php | viewport | width=device-width, initial-scale=1, maximum-scale=1, user-scalable=1 |
| www.issdu.com.tw/about.php | keywords | 數聯資安, 資訊安全, 資安服務, 弱點掃描, 滲透測試, 資安健診, SOC監控服務, ISO27001, ISO29100, ISMS, PIMS, 原始碼檢測, 端點安全 |
| www.issdu.com.tw/about.php | description | 數聯資安為國內頂尖專業資安服務領導廠商，擁有全台首座企業級資安監控中心，2009年成為遠傳100%子公司後，整合豐富集團資通訊網路資源，持續深耕資安服務領域，超過15年以上的專業資安能量，提供客戶全方位資安服務包括：資安監控、資安檢測、資安治理、以及多樣化資安解決方案。 |
| www.issdu.com.tw/news.php | viewport | width=device-width, initial-scale=1, maximum-scale=1, user-scalable=1 |
| www.issdu.com.tw/news.php | keywords | 數聯資安, 資訊安全, 資安服務, 弱點掃描, 滲透測試, 資安健診, SOC監控服務, ISO27001, ISO29100, ISMS, PIMS, 原始碼檢測, 端點安全 |
| www.issdu.com.tw/news.php | description | 數聯資安為國內頂尖專業資安服務領導廠商，擁有全台首座企業級資安監控中心，2009年成為遠傳100%子公司後，整合豐富集團資通訊網路資源，持續深耕資安服務領域，超過15年以上的專業資安能量，提供客戶全方位資安服務包括：資安監控、資安檢測、資安治理、以及多樣化資安解決方案。 |
| www.issdu.com.tw/contact.php | viewport | width=device-width, initial-scale=1, maximum-scale=1, user-scalable=1 |
| www.issdu.com.tw/contact.php | keywords | 數聯資安, 資訊安全, 資安服務, 弱點掃描, 滲透測試, 資安健診, SOC監控服務, ISO27001, ISO29100, ISMS, PIMS, 原始碼檢測, 端點安全 |
| www.issdu.com.tw/contact.php | description | 數聯資安為國內頂尖專業資安服務領導廠商，擁有全台首座企業級資安監控中心，2009年成為遠傳100%子公司後，整合豐富集團資通訊網路資源，持續深耕資安服務領域，超過15年以上的專業資安能量，提供客戶全方位資安服務包括：資安監控、資安檢測、資安治理、以及多樣化資安解決方案。 |
Meta Tags (http-equiv attribute)
| Page URL | Name | Content |
| www.issdu.com.tw/ | X-UA-Compatible | IE=edge,chrome=1 |
| www.issdu.com.tw/index.php | X-UA-Compatible | IE=edge,chrome=1 |
| www.issdu.com.tw/about.php | X-UA-Compatible | IE=edge,chrome=1 |
| www.issdu.com.tw/news.php | X-UA-Compatible | IE=edge,chrome=1 |
| www.issdu.com.tw/contact.php | X-UA-Compatible | IE=edge,chrome=1 |
Printability10.0
100% of pages are optimised for printing
- All of this website appears to be optimised for printing (using CSS).
Media specific CSS detected
Freshness10.0
Last updated February 16, 2024
- It looks like this website was last updated on Friday, 16 February 2024. This is good because visitors perceive up-to-date websites as more credible. Websites that are updated regularly are also spidered by search engines more often.
- To find this information we used the last modified dates reported by this website's server in addition to looking for dates written on each page.
All dates found
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Nibbler | Insites | |
|---|---|---|
| Tests | 17 fixed tests | 50+ testsCovers SEO, SEM, Google My Business, reviews, social media and much more |
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