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凌威科技是一家專業RAID/NAS資料救援的公司。24年技術團隊經驗,成功救援上千組RAID、NAS。公司位於內湖科技園區,建構有Class 100 無塵室及原廠硬碟儀器設備,提供客戶專業RAID、NAS、硬碟資料救援服務。

Page load speed analysis

  • 54/100

    Normal result
  • 4

    Successful tests
  • 4

    Failed tests
  • First response

    517 ms

  • Resources loaded

    6.9 sec

  • Page rendered

    158 ms

  • Total page load time

    7.6 sec

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We analyzed page load time and found that the first response time was 517 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Page optimization

  • HTML 16.2 kB
    Images 1.3 MB
    Javascripts 346.2 kB
    CSS 18.0 kB

    In fact, the total size of main page is 1.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.

    • Original 16.2 kB
    • After minification 15.6 kB
    • After compression 5.6 kB

    HTML optimization

    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 10.6 kB or 65% of the original size.

    • Original 1.3 MB
    • After optimization 1.2 MB

    Image optimization

    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. Raid Nas images are well optimized though.

    • Original 346.2 kB
    • After minification 332.0 kB
    • After compression 120.6 kB

    JavaScript optimization

    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 225.6 kB or 65% of the original size.

    • Original 18.0 kB
    • After minification 14.1 kB
    • After compression 3.3 kB

    CSS optimization

    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. needs all CSS files to be minified and compressed as it can save up to 14.7 kB or 82% of the original size.

Network requests diagram

  • index.css
  • reset.css
  • fade_pic.css
  • linwei.js
  • jquery-1.6.min.js
  • jquery.easing.1.3.js
  • 001.js
  • jquery.min.js
  • jquery.js
  • rollover.js
  • swfobject_modified.js
  • jquery-latest.min.js
  • ga.js
  • index-top.png
  • index-logo.png
  • arrow.png
  • i-successful.png
  • i-repair.png
  • i-process.png
  • i-charge.png
  • i-about.png
  • index-image_01.jpg
  • index-image_02.jpg
  • index-image_05.jpg
  • index-image_03.jpg
  • index-image_04.jpg
  • i-contact-bar-page.png
  • i-map.png
  • i-linwei_category.png
  • index_q.png
  • index_a.png
  • i-sc_menu.png
  • i-sc_img.png
  • i-sc_img1.png
  • i-sc_img2.png
  • i-banner_linwei.png
  • arrow_r.png
  • i-footer_knowraid.png
  • i-footer_useraid.png
  • i-footer_backup.png
  • arrow_o.png
  • __utm.gif
  • i-successful_on.png
  • i-repair_on.png
  • i-process_on.png
  • i-charge_on.png
  • i-about_on.png
  • i-map_on.png
  • i-sc_menu_on.png
  • i-banner_linwei_on.png
  • i-footer_knowraid_on.png
  • i-footer_useraid_on.png
  • i-footer_backup_on.png

Our browser made a total of 56 requests to load all elements on the main page. We found that 93% of them (52 requests) were addressed to the original, 4% (2 requests) were made to and 4% (2 requests) were made to The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain

Additional info on


The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Raid Nas. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and as a result speed up the page load time.











Possible request optimization













Normal result


As for redirects, our browser was forwarded to before it reached this domain.

IP address uses IP address which is currently shared with 4 other domains. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Poor result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 299
A 299
NS 86400
NS 86400

3600 Mname:
Serial: 2037506802
Refresh: 10000
Retry: 2400
Expire: 604800
Minimum-ttl: 3600

Language and encoding

Poor result


EN en language flag


N/A  language flag





Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise can be misinterpreted by Google and other search engines. Our service has detected that English 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 main page’s claimed encoding is big5. 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.

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Poor result

Visitor World Map

The server of is located in United States, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance can potentially affect the page load time.

Good result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of Raid Nas. 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:

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