Nibbler SEO audit for www.edx.org
Summary
Overall9.7
The overall score for this website.
Accessibility9.8
How accessible the website is to mobile and disabled users.
The following tests contribute to this score:
Experience9.8
How satisfying the website is likely to be for users.
The following tests contribute to this score:
Marketing9.4
How well marketed, and popular the website is.
The following tests contribute to this score:
Technology9.8
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 21:04 on 22 Mar 2024 (GMT).
Top priorities for website improvement
- Consider the amount of text on this website and increase it if appropriate. (read more)
- Make sure all headings have content which is relevant to the page of content. (read more)
- 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. (read more)
Amount of content8.2
Rendering Chart...
- This website has an average of 465 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.edx.org/ | 3078 | 435 |
| www.edx.org/search | 717 | 115 |
| www.edx.org/schools-partners | 1329 | 201 |
| www.edx.org/free-online-courses | 6752 | 1039 |
| www.edx.org/about-us | 3603 | 537 |
Headings8.6
- 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 (8.0%) 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
Images9.8
10% of images have a clearly defined size
18 images are being resized by the browser
- Most images (90.0%) 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.
- 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 prod-discovery.edx-cdn.org/.../5f1b3a31-014f-44e0-ade4-829a9d4b8334-00d7ebd79ee5.png unknown
- Make sure all images on this website are JPEG, PNG, SVG or GIF format.
- 18 images are being stretched in the browser.
- The width and height you specify in an image tag should be the same as the source image. If you want to resize an image in the browser, use the CSS width and height properties.
Stretched Images
- The width and height you specify in an image tag should be the same as the source image. If you want to resize an image in the browser, use the CSS width and height properties.
Mobile10.0
- All of this website appears to be optimised for viewing on a mobile phone or a tablet.
Media specific CSS detected
Server behaviour10.0
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.
- This website follows the best practice of using a permanent (HTTP 301) redirect between URLs with/without trailing slashes. This is ideal.
- 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.
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 behaviour.
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 optimisation.
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:
Build new skills. Advance your career. | edX
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 5.11.0 |
| 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://www.edx.org/contentful/ii9ehdcj88bc/24nI9FEfxhYsu4JtOI8esA/6405f3a237472501ca21a3ffcfa1cdc4/edx-homepage-preview.png?w=1116&h=585&fm=webp |
| www.edx.org/ | twitter:title | 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://www.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 | viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| www.edx.org/search | generator | Gatsby 5.11.0 |
| www.edx.org/search | twitter:card | summary |
| www.edx.org/search | twitter:creator | @edXOnline |
| www.edx.org/search | apple-itunes-app | app-id=945480667 |
| www.edx.org/search | 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 | keywords | |
| www.edx.org/search | image | |
| www.edx.org/search | twitter:title | edX Courses | View all online courses on edX.org |
| www.edx.org/search | 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 | twitter:image | |
| www.edx.org/search | robots | noindex, nofollow |
| www.edx.org/schools-partners | viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| www.edx.org/schools-partners | generator | Gatsby 5.11.0 |
| 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 programs and courses from institutions that share our commitment to innovation and excellence in teaching, learning, and skills development. |
| 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 programs and courses from institutions that share our commitment to innovation and excellence in teaching, learning, and skills development. |
| www.edx.org/schools-partners | twitter:image | |
| www.edx.org/free-online-courses | viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| www.edx.org/free-online-courses | generator | Gatsby 5.11.0 |
| www.edx.org/free-online-courses | twitter:card | summary |
| www.edx.org/free-online-courses | twitter:creator | @edXOnline |
| www.edx.org/free-online-courses | apple-itunes-app | app-id=945480667 |
| www.edx.org/free-online-courses | description | Supercharge your skills with the best free courses online from edX. Enroll today to start free online courses with the world’s leading universities. |
| www.edx.org/free-online-courses | keywords | |
| www.edx.org/free-online-courses | image | |
| www.edx.org/free-online-courses | twitter:title | Best Free Online Courses for 2024 | edX |
| www.edx.org/free-online-courses | twitter:description | Supercharge your skills with the best free courses online from edX. Enroll today to start free online courses with the world’s leading universities. |
| www.edx.org/free-online-courses | twitter:image | |
| www.edx.org/about-us | viewport | width=device-width, initial-scale=1, shrink-to-fit=no |
| www.edx.org/about-us | generator | Gatsby 5.11.0 |
| www.edx.org/about-us | twitter:card | summary |
| www.edx.org/about-us | twitter:creator | @edXOnline |
| www.edx.org/about-us | apple-itunes-app | app-id=945480667 |
| www.edx.org/about-us | description | edX is an online learning destination and MOOC provider, offering high-quality courses from the world’s best universities and institutions to learners everywhere. We empower online learning in the classroom and around the globe. Learn more about our online courses and programs and enroll today. |
| www.edx.org/about-us | keywords | |
| www.edx.org/about-us | image | |
| www.edx.org/about-us | twitter:title | About Us |
| www.edx.org/about-us | twitter:description | edX is an online learning destination and MOOC provider, offering high-quality courses from the world’s best universities and institutions to learners everywhere. We empower online learning in the classroom and around the globe. Learn more about our online courses and programs and enroll today. |
| www.edx.org/about-us | twitter:image |
Meta Tags (http-equiv attribute)
| Page URL | Name | Content |
| www.edx.org/ | x-ua-compatible | ie=edge |
| www.edx.org/search | x-ua-compatible | ie=edge |
| www.edx.org/schools-partners | x-ua-compatible | ie=edge |
| www.edx.org/free-online-courses | x-ua-compatible | ie=edge |
| www.edx.org/about-us | x-ua-compatible | ie=edge |
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
URL format10.0
Every URL is well written
- This website uses appropriate web addresses (URLs) throughout. This is excellent and will help search engine placement, usability and the marketability of this website.
Popularity10.0
1277336Estimated monthly organic visitors
- This website appears to have a high number of monthly website visits each month
Source: Ahrefs
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.
Freshnessi
- Sorry, we couldn't determine when this website was last updated. This is usually because its web server isn't reporting this information and we couldn't find enough other dates in the content of pages.
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Nibbler | Insites | |
|---|---|---|
| Tests | 17 fixed tests | 50+ testsCovers SEO, SEM, Google My Business, reviews, social media and much more |
| Add your branding | No | Yes |
| Export & share | No | PDF & link |
| Lead generation | No | Embed on your site |
| Competitor audits | No | Yes |
| Test as a batch | No | Yes |
| Integrations + API | No | Yes |
| Multi-lingual | No | 20+ languages |
| Try it free |