Nibbler SEO audit for slither.io

Overall5.0

The overall score for this website.

Accessibility5.4

How accessible the website is to mobile and disabled users.

The following tests contribute to this score:

Experience5.9

How satisfying the website is likely to be for users.

Marketing3.6

How well marketed, and popular the website is.

Technology5.7

How well designed and built the website is.

Nibbler tested a sample of 4 pages from this website at 22:24 on 10 Apr 2024 (BST).

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)
  • Consider a leading website analytics solution, such as WebTrends or Google Analytics. (read more)
  • Define meaningful headings for all webpages. This is likely to help this website's search engine placement and assist visitors in navigating content. (read more)

Analytics0.0

0% of pages use analytics

No Analytics SolutionNo

  • None of this website is using any recognised analytics software. It is still possible to gather a great deal of information from webserver logs, however complete visitor analysis requires client-side Javascript or an image not found here.
    • Consider a leading website analytics solution, such as WebTrends or Google Analytics.
  • Note that this test can only detect recognised analytics solutions. If an analytics solution is new, obscure or used in a non-standard way (e.g. it has been customised) it may not be detected.

Headings0.0

access address email protection slither unable

  • A large number (75.0%) of pages do not use defined headings. This means that users and search engines may find it harder to determine the content of this website's pages. Correctly defined headings aid accessibility and are particularly important for search engine optimisation.
    • Define meaningful headings for all webpages. This is likely to help this website's search engine placement and assist visitors in navigating content.

Page headings detail

URLHeadingLevel
slither.io/cdn-cgi/.../email-protectionEmail ProtectionH1
slither.io/cdn-cgi/.../email-protectionYou are unable to access this email address slither.ioH2

Printability0.0

0% of pages are optimised for printing

Media specific CSS detected

Meta tags3.0

This is how this website will look in Google search listings:

slither.io

slither.io/

The smash-hit game! Play with millions of players around the world and try to become the longest of the day!

  • 25.0% of pages have a description meta tag. The description meta data is important as it appears on Google's search result pages.
    • Make sure that all the pages of this website include a meta description. If you don't include one, Google will choose a sample of text from the page to appear in the search engine result. By including a meta description, you can control how your search engine result will appear.

Meta Tags (name attribute)

Page URLNameContent
slither.io/viewportminimal-ui, user-scalable=no, initial-scale=0.7, maximum-scale=0.7, width=device-width
slither.io/descriptionThe smash-hit game! Play with millions of players around the world and try to become the longest of the day!
slither.io/keywordsslitherio, slither, io, snake, snakes, worm, worms, game, games, web game, html5, fun, flash, slithario
slither.io/cdn-cgi/.../email-protectionrobotsnoindex, nofollow
slither.io/cdn-cgi/.../email-protectionviewportwidth=device-width,initial-scale=1

Meta Tags (http-equiv attribute)

Page URLNameContent
slither.io/cdn-cgi/.../email-protectionContent-Typetext/html; charset=UTF-8
slither.io/cdn-cgi/.../email-protectionX-UA-CompatibleIE=Edge

Amount of content3.8

Rendering Chart...

  • This website has an average of 74 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.
  • One page of this website has very little content (20 words or less).
    • Ensure all pages have a sufficient amount of content.

Amount of content discovered

Mobile4.8

Screenshot unavailable
Screenshot unavailable
  • Some pages (25.0%) of this website appear to be optimised for viewing on a mobile phone or tablet (using CSS media queries). It is important to make sure your content is optimised for a wide range of devices as a growing percentage of web browsing is done on phones and tablets.
    • Check how the website looks using a mobile and consider adding mobile and tablet styling using media queries. Some websites employ other techniques for mobile visitors which we cannot currently detect.

      Device optimised pages

      PageMobileTabletViewport
      slither.io/Not detectedNot detectedDetected
      slither.io/privacy/Not detectedNot detectedNot detected
      slither.io/contact/Not detectedNot detectedNot detected
      slither.io/cdn-cgi/.../email-protectionDetectedDetectedDetected

Media specific CSS detected

Server behaviour7.3

No404 page

YesCompression

  • 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.
  • This website was served with GZIP encoding. This is very good because it reduces the loading time of a web page.
  • Adding or removing a trailing slash to one of the URLs of this site returns an error page (404). This is OK as no content is being duplicated, but visitors might try browsing to the pages of this website with or without a trailing slash. Ideally, the alternate URL should redirect to the correct page.
  • This website uses a temporary (HTTP 302) redirect from http://www.slither.io to http://slither.io. 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.

Images8.7

67% of images have a clearly defined size

10 images are being resized by the browser

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.

URL format10.0

  • This website uses appropriate web addresses (URLs) throughout. This is excellent and will help search engine placement, usability and the marketability of this website.

Freshness10.0

Last updated April 3, 2024

  • It looks like this website was last updated on Wednesday, 3 April 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

DateFileSource
06/05/2016slither.io/privacy/Last modified header
07/04/2016slither.io/contact/Last modified header
07/04/2016slither.io/contact/ig.pngLast modified header
07/04/2016slither.io/contact/yt.pngLast modified header
07/04/2016slither.io/contact/fb.pngLast modified header
07/04/2016slither.io/contact/tw.pngLast modified header
07/04/2016slither.io/contact/head.pngLast modified header
12/04/2016slither.io/s/overlap.pngLast modified header
21/03/2016slither.io/s/next3.pngLast modified header
21/03/2016slither.io/s/prev3.pngLast modified header
13/04/2016slither.io/s/highquality.pngLast modified header
28/12/2018slither.io/s/selectcosmetic2.pngLast modified header
17/11/2017slither.io/s/buildskin.pngLast modified header
24/12/2018slither.io/s/entercode4.pngLast modified header
20/03/2016slither.io/s/changeskin2.pngLast modified header
20/03/2016slither.io/s/twitter3.pngLast modified header
20/03/2016slither.io/s/facebook.pngLast modified header
07/04/2016slither.io/contact/contact.1.2.cssLast modified header
03/04/2024slither.io/cdn-cgi/.../cf.errors.cssLast modified header

Twitteri

This website does not appear to be associated with a Twitter account.

  • There was a problem checking the Twitter accounts associated with this website.

Popularityi

  • Sorry, it was not possible to determine the popularity for this website.

Source: Ahrefs

Domain agei

  • Sorry, we cannot check the domain age of .io websites.

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