Nibbler SEO audit for www.edx.org
Summary
Overall9.4
The overall score for this website.
Accessibility9.2
How accessible the website is to mobile and disabled users.
The following tests contribute to this score:
Experience9.5
How satisfying the website is likely to be for users.
The following tests contribute to this score:
Marketing9.6
How well marketed and popular the website is.
The following tests contribute to this score:
Technology9.2
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 5:14 PM on May 5, 2023 (BST).
Top priorities for website improvement
- Consider URL rewriting as an effective and transparent means of creating appropriate URLs. URLs using unusual characters (such as semi-colons or underscores), long numerals or complex phrasing are very difficult for real people to use or exchange. They also tend to be less favoured by search engines. Wherever possible ensure web addresses are 'human readable' - i.e. they should be easy to read, remember and type. In particular, avoid the use of obscure characters (including the underscore, which is not widely understood by non-technical users, or particularly memorable) and long numerals, e.g. example.com/23857984325. (read more)
- Make sure all headings have content which is relevant to the page of content. (read more)
- Consider the amount of text on this website and increase it if appropriate. (read more)
URL format6.0
3 URLs are less than ideal
- One URL is particularly hard to type or remember.
- Consider URL rewriting as an effective and transparent means of creating appropriate URLs. URLs using unusual characters (such as semi-colons or underscores), long numerals or complex phrasing are very difficult for real people to use or exchange. They also tend to be less favoured by search engines. Wherever possible ensure web addresses are 'human readable' - i.e. they should be easy to read, remember and type. In particular, avoid the use of obscure characters (including the underscore, which is not widely understood by non-technical users, or particularly memorable) and long numerals, e.g. example.com/23857984325.
- 3 URLs are 'dirty'. 'Dirty' URLs include one or more parameters after a question mark (e.g. www.example.com/?pagename=news), instead of a clean URL (e.g. www.example.com/news). Dirty URLs should generally be avoided wherever possible - they are almost impossible for human beings to remember, may expose the technology of the website to hackers and can confuse search engines among other problems. Their use is sometimes necessary for specific applications, and acceptable in small amounts.
- Remove or reduce the number of query parameters in URLs. Consider URL rewriting as an effective and transparent means of creating appropriate URLs.
Headings7.7
- All pages were found to use defined headings. This is excellent as it allows visitors and search engines to summarize the content of webpages quickly. Correctly defined headings aid accessibility and are particularly important for search engine optimization.
- Many headings (6.0%) 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.
- Some pages did not define headings correctly. The H1 tag should be used for the most top-level heading, with H2 being used for sub-headings and H3 for further sub-headings and so-on. Not conforming to this convention may confuse visitors.
- Ensure that headings are defined in a semantically correct way, i.e. always start with a H1 tag. This is used to summarise the page content. Further tags (H2, H3, H4 etc) are meant to summarise and partition sections within the content.
Page headings detail
Amount of content7.8
Rendering Chart...
- This website has an average of 367 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
Server behavior9.2
404 page
Compression
- This website handles missing pages correctly by sending a 404 HTTP status code.
- This website was served with GZIP encoding. This is very good because it reduces the loading time of a web page.
- One page of this website returns page content with or without a trailing slash on its URL, but it uses a canonical tag to denote the correct versions. This is ideal, as search engines will know which version to index.
- 3 of the pages of this website return page content with or without a trailing slash on their URLs, but they use a canonical tag to denote the correct version. This is usually ideal, as search engines will know which version to index, but there are links on this website which point to the non canonical version.
- Make sure all internal links to this page go to the canonical version.
- This website follows the best practice of using a permanent (HTTP 301) redirect from http://edx.org to http://www.edx.org. This is ideal.
Twitter10.0
This website is linked with the Twitter account @edXOnline
This website's Twitter account has
345,342 followers
- This website was found to link the Twitter account edX (@edXOnline).
- This website's Twitter account has made 14,761 tweets to 345,342 followers.
Source: Twitter
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
Multiple Analytics Solutions
- Every page in this website is using some form of analytics software. This is excellent and should allow for a complete analysis of visitor behavior.
Analytics Software Found
| Software Name |
| Google Analytics |
| Google Tag Manager |
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 optimization.
Incoming links10.0
22,610,824 pages link to this website
85,796 domains link to this website
- There are 22,610,824 pages on 85,796 domains linking to this website. The volume and quality of incoming links is known to influence a website's search engine ranking.
- To appear higher in search engine results, consider link building activity as a way to build your search ranking. Be careful though, because incoming links which are obviously artificial are likely to be detected by search engines and could have an adverse effect.
Source: Ahrefs
Images10.0
1% of images have a clearly defined size
No images are being resized by the browser
- Most images (99.0%) 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 faster.
- 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.
- One image is 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 edx.org/.../AI_Marketing_Banner.png?w=580&fm=webp unknown
- Make sure all images on this website are JPEG, PNG, SVG or GIF format.
Internal links10.0
- Every link tested appears to be well defined. This is good because well defined links help SEO and aid accessibility.
Meta tags10.0
This is how this website will look in Google search listings:
edX logo
www.edx.org/
Discover thousands of offerings — from free courses to full degrees — delivered by world-class partners like Harvard, Google, Amazon and more.
- 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.edx.org/ | viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| www.edx.org/ | generator | Gatsby 5.9.0 |
| www.edx.org/ | twitter:card | summary |
| www.edx.org/ | twitter:creator | @edXOnline |
| www.edx.org/ | apple-itunes-app | app-id=945480667 |
| www.edx.org/ | description | Discover thousands of offerings — from free courses to full degrees — delivered by world-class partners like Harvard, Google, Amazon and more. |
| www.edx.org/ | keywords | |
| www.edx.org/ | image | https://edx.org/contentful/ii9ehdcj88bc/24nI9FEfxhYsu4JtOI8esA/6405f3a237472501ca21a3ffcfa1cdc4/edx-homepage-preview.png?w=1116&h=585&fm=webp |
| www.edx.org/ | twitter:title | edX | Build new skills. Advance your career. |
| www.edx.org/ | twitter:description | Discover thousands of offerings — from free courses to full degrees — delivered by world-class partners like Harvard, Google, Amazon and more. |
| www.edx.org/ | twitter:image | https://edx.org/contentful/ii9ehdcj88bc/24nI9FEfxhYsu4JtOI8esA/6405f3a237472501ca21a3ffcfa1cdc4/edx-homepage-preview.png?w=1116&h=585&fm=webp |
| www.edx.org/ | robots | no-follow |
| www.edx.org/search/?tab=course | viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| www.edx.org/search/?tab=course | generator | Gatsby 5.9.0 |
| www.edx.org/search/?tab=course | twitter:card | summary |
| www.edx.org/search/?tab=course | twitter:creator | @edXOnline |
| www.edx.org/search/?tab=course | apple-itunes-app | app-id=945480667 |
| www.edx.org/search/?tab=course | description | Find online courses from top universities. Search all edX MOOCs from Harvard, MIT and more and enroll in a free course today. |
| www.edx.org/search/?tab=course | keywords | |
| www.edx.org/search/?tab=course | image | |
| www.edx.org/search/?tab=course | twitter:title | edX Courses | View all online courses on edX.org |
| www.edx.org/search/?tab=course | twitter:description | Find online courses from top universities. Search all edX MOOCs from Harvard, MIT and more and enroll in a free course today. |
| www.edx.org/search/?tab=course | twitter:image | |
| www.edx.org/search/?tab=course | robots | noindex, follow |
| www.edx.org/schools-partners | viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| www.edx.org/schools-partners | generator | Gatsby 5.9.0 |
| www.edx.org/schools-partners | twitter:card | summary |
| www.edx.org/schools-partners | twitter:creator | @edXOnline |
| www.edx.org/schools-partners | apple-itunes-app | app-id=945480667 |
| www.edx.org/schools-partners | description | edX offers the highest quality online courses from institutions who share our commitment to excellence in teaching and learning. |
| www.edx.org/schools-partners | keywords | |
| www.edx.org/schools-partners | image | |
| www.edx.org/schools-partners | twitter:title | Schools and Partners |
| www.edx.org/schools-partners | twitter:description | edX offers the highest quality online courses from institutions who share our commitment to excellence in teaching and learning. |
| www.edx.org/schools-partners | twitter:image | |
| www.edx.org/search/?tab=program | viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| www.edx.org/search/?tab=program | generator | Gatsby 5.9.0 |
| www.edx.org/search/?tab=program | twitter:card | summary |
| www.edx.org/search/?tab=program | twitter:creator | @edXOnline |
| www.edx.org/search/?tab=program | apple-itunes-app | app-id=945480667 |
| www.edx.org/search/?tab=program | description | Find online courses from top universities. Search all edX MOOCs from Harvard, MIT and more and enroll in a free course today. |
| www.edx.org/search/?tab=program | keywords | |
| www.edx.org/search/?tab=program | image | |
| www.edx.org/search/?tab=program | twitter:title | edX Courses | View all online courses on edX.org |
| www.edx.org/search/?tab=program | twitter:description | Find online courses from top universities. Search all edX MOOCs from Harvard, MIT and more and enroll in a free course today. |
| www.edx.org/search/?tab=program | twitter:image | |
| www.edx.org/search/?tab=program | robots | noindex, follow |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | generator | Gatsby 5.9.0 |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | twitter:card | summary |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | twitter:creator | @edXOnline |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | apple-itunes-app | app-id=945480667 |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | description | The Google Cloud Computing Foundations courses provide an overview of concepts central to cloud basics, big data, and machine learning, and where and how Google Cloud fits in. |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | keywords | |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | image | https://prod-discovery.edx-cdn.org/media/programs/card_images/1fcffef0-468a-483f-95aa-87e2d4d2c408-fc006d5bbc06.png |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | twitter:title | Google Cloud Computing Foundations Professional Certificate |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | twitter:description | The Google Cloud Computing Foundations courses provide an overview of concepts central to cloud basics, big data, and machine learning, and where and how Google Cloud fits in. |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | twitter:image | https://prod-discovery.edx-cdn.org/media/programs/card_images/1fcffef0-468a-483f-95aa-87e2d4d2c408-fc006d5bbc06.png |
Meta Tags (http-equiv attribute)
| Page URL | Name | Content |
| www.edx.org/ | x-ua-compatible | ie=edge |
| www.edx.org/search/?tab=course | x-ua-compatible | ie=edge |
| www.edx.org/schools-partners | x-ua-compatible | ie=edge |
| www.edx.org/search/?tab=program | x-ua-compatible | ie=edge |
| www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | x-ua-compatible | ie=edge |
Printability10.0
100% of pages are optimized for printing
- All pages of this website appear to be optimized for printing (using CSS).
Media specific CSS detected
Popularity10.0
1158173Estimated monthly organic visitors
- This website appears to have a high number of monthly website visits each month
Source: Ahrefs
Freshness10.0
Last updated May 4, 2023
- It looks like this website was last updated on Thursday, May 4, 2023. 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
| Date | File | Source |
| 5/4/23 | www.edx.org/ | Last modified header |
| 5/4/23 | www.edx.org/search/?tab=course | Last modified header |
| 5/4/23 | www.edx.org/schools-partners | Last modified header |
| 5/4/23 | www.edx.org/search/?tab=program | Last modified header |
| 5/4/23 | www.edx.org/professional-certificate/google-cloud-computing-foundations...&product_category=professional-certificate | Last modified header |
| 5/4/23 | www.edx.org/assets/world_map.png | Last modified header |
| 5/4/23 | www.edx.org/.../google-play-badge-en.png | Last modified header |
| 5/4/23 | www.edx.org/.../apple-store-badge-en.svg | Last modified header |
| 5/4/23 | www.edx.org/images/koosh-brain.png | Last modified header |
| 5/4/23 | www.edx.org/images/.../learner4.png | Last modified header |
| 5/4/23 | www.edx.org/images/.../fast-co.png | Last modified header |
| 5/4/23 | www.edx.org/images/.../edx-logo-elm.svg | Last modified header |
| 5/4/23 | www.edx.org/fonts/primary-fonts.css | Last modified header |
| 5/4/23 | www.edx.org/fonts/async-fonts.css | Last modified header |
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Nibbler tested the following pages
- https://www.edx.org/
- https://www.edx.org/search/?tab=course
- https://www.edx.org/schools-partners
- https://www.edx.org/search/?tab=program
- https://www.edx.org/professional-certificate/google-cloud-computing-foundations?webview=false&campaign=Google+Cloud+Computing+Foundations&source=edx&product_category=professional-certificate