http://daviddeley.com Website Archivability Evaluation, 2020-09-15 09:39:25

Website Archivability: 90% Accessibility: 64% Cohesion: 100% Metadata: 100% Standards Compliance: 94%
  1. No images found in this page.
    Therefore, it is easier to be archived.
    Rating 100% Significance: Cohesion
  2. You are not using any external proprietary objects (Flash, Quicktime).
    Proprietary formats are not recommended for long term preservation. Please consider changing your content to open formats.
    Rating 100% Significance: Accessibility Standards_Compliance Reference: http://www.ands.org.au/guides/file-formats-working.html
  3. Network response time is 3000 ms
    Website performance affects greatly the process of data aggregation and web accessibility. Performance evaluation rating is 100 when response time is 200ms or less and 0 when response time is more than 2sec.
    Rating 0% Significance: Accessibility Reference: https://developers.google.com/speed/docs/insights/Server
  4. HTTP Headers found
    Last-ModifiedWed, 15 Jul 2020 07:51:14 GMT
    Content-Typetext/html
    Server- Web acceleration by http://www.unixy.net/varnish
    X-CacheableYES
    Content-Length984
    Accept-Rangesbytes
    DateWed, 16 Sep 2020 02:45:13 GMT
    X-Varnish1989619228 1989619224
    Via1.1 varnish
    Connectionkeep-alive
    age0
    X-CacheHIT
    X-Cache-Hits1
    Standards_Compliance
  5. httpheaders.check_content_transfer_encoding.warning.title
    The encoding used on the data is not defined. Web bots would try assume the possible encoding, leading to potential mistakes. A Transfer-Encoding header field, which can be used to specify an auxiliary encoding that was applied to the data in order to allow it to pass through mail transport mechanisms which may have data or character set limitations.
    Rating 50% Significance: Standards_Compliance Reference: http://en.wikipedia.org/wiki/List_of_HTTP_header_fields http://en.wikipedia.org/wiki/HTTP_compression
  6. Content type was clearly defined.
    Correctly defined HTTP headers help web bots understand the content.
    Rating 100% Significance: Standards_Compliance Metadata Reference: http://en.wikipedia.org/wiki/MIME
  7. HTTP caching headers enabled.
    Expires was not defined.
    Last-Modified was clearly defined in HTTP headers: Wed, 15 Jul 2020 07:51:14 GMT.
    Etag: was not defined.
    HTTP caching headers are critical to improve web archiving bots performance because they help avoid downloading unmodified content multiple times.
    Rating 100% Significance: Accessibility Metadata Reference: https://developers.google.com/speed/docs/best-practices/caching
  8. There are no "Disallow:" commands in your robots.txt file
    Disallow: commands are used to block web bots from specific website areas. They may cause web archiving problems.
    Rating 100% Significance: Accessibility Reference: http://www.robotstxt.org/robotstxt.html
  9. There is a sitemap.xml reference in your robots.txt file.
    This is used to tell web robots where your sitemap is located and increase site accessiblity.
    Rating 100% Significance: Accessibility Reference: http://www.advancedhtml.co.uk/robots-sitemaps.htm
  10. No sitemap.xml found.
    Sitemaps are an easy way for webmasters to inform web bots about available web pages so that they can more intelligently crawl the site.
    Rating 0% Significance: Accessibility Reference: http://www.sitemaps.org/
  11. Retrieved HTML document in 0.20 sec.
    Document retrieved successfully.
  12. Valid HTML document http://daviddeley.com.
    Web pages which conform with Web Standards have a higher possibility to be preserved correctly.
    Rating 100% Significance: Standards_Compliance Reference: https://validator.w3.org/nu/?doc=http://daviddeley.com
  13. No CSS files used in this webpage.
    The absence of CSS simplifies archiving.
    Rating 100% Significance: Standards_Compliance
  14. Local scripts found: 0, remote scripts found: 0
    used in a website but hosted elsewhere may cause problems in web archiving because they may not be captured when the site is archived. What is more, the site is depended on 3rd party sites which may not be available in the future, causing incontrolable problems.
    Rating 100% Significance: Cohesion Reference: http://en.wikipedia.org/wiki/Inline_linking
  15. No inline script elements found.
    Inline JavaScript code inside HTML is considered a bad practice. The absence of inline JavaScript simplifies archiving.
    Rating 100% Significance: Accessibility Reference: http://stackoverflow.com/questions/14928068/they-said-javascript-code-in-html-considered-bad-practice-how-to-solve-this