Nibbler SEO audit for www.nei.nih.gov
Summary
Overall9.8
The overall score for this website.
Accessibility10.0
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:
Marketing9.6
How well marketed and popular the website is.
The following tests contribute to this score:
Technology9.9
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 6:32 AM on May 25, 2023 (BST).
Top priorities for website improvement
- Consider the amount of text on this website and increase it if appropriate. (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)
- 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. (read more)
Amount of content8.1
Rendering Chart...
- This website has an average of 344 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
Images9.4
32% of images have a clearly defined size
9 images are being resized by the browser
- Most images (68.0%) 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.
- 9 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 behavior10.0
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://nei.nih.gov to http://www.nei.nih.gov. This is ideal.
Analytics10.0
100% of pages use analytics
Google Tag Manager
- Every page in this website is using Google Tag Manager. This is excellent and should allow for a complete analysis of visitor behavior.
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.
Headings10.0
- 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.
Page headings detail
Incoming links10.0
390,725 pages link to this website
23,859 domains link to this website
- There are 390,725 pages on 23,859 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
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:
National Eye Institute | National Eye Institute
www.nei.nih.gov/
The National Eye Institute (NEI) performs and supports vision research and education programs that protect and prolong vision. Learn about eye conditions, healthy ...
- 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.nei.nih.gov/ | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw | |
| www.nei.nih.gov/ | description | The National Eye Institute (NEI) performs and supports vision research and education programs that protect and prolong vision. Learn about eye conditions, healthy eyes, vision studies, and grants for vision research. |
| www.nei.nih.gov/ | google-site-verification | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw |
| www.nei.nih.gov/ | google-site-verification | lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw |
| www.nei.nih.gov/ | google-site-verification | UDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA |
| www.nei.nih.gov/ | viewport | width=device-width, initial-scale=1.0 |
| www.nei.nih.gov/learn-about-eye-health | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw | |
| www.nei.nih.gov/learn-about-eye-health | description | Learn how to take care of your eyes, get the facts about specific eye problems, and help others learn about healthy vision. |
| www.nei.nih.gov/learn-about-eye-health | google-site-verification | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw |
| www.nei.nih.gov/learn-about-eye-health | google-site-verification | lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw |
| www.nei.nih.gov/learn-about-eye-health | google-site-verification | UDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA |
| www.nei.nih.gov/learn-about-eye-health | viewport | width=device-width, initial-scale=1.0 |
| www.nei.nih.gov/learn-about-eye-health | last-updated | Feb 14, 2023, 3:57:52 PM |
| www.nei.nih.gov/learn-about-eye-health/healthy-vision | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw | |
| www.nei.nih.gov/learn-about-eye-health/healthy-vision | description | Many eye diseases don’t have any warning signs — so you could have an eye problem and not know it. Read about what you can do to keep your eyes healthy, including getting a dilated eye exam, finding an eye doctor, and getting help paying for care |
| www.nei.nih.gov/learn-about-eye-health/healthy-vision | google-site-verification | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw |
| www.nei.nih.gov/learn-about-eye-health/healthy-vision | google-site-verification | lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw |
| www.nei.nih.gov/learn-about-eye-health/healthy-vision | google-site-verification | UDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA |
| www.nei.nih.gov/learn-about-eye-health/healthy-vision | viewport | width=device-width, initial-scale=1.0 |
| www.nei.nih.gov/learn-about-eye-health/healthy-vision | last-updated | Nov 17, 2022, 9:42:06 AM |
| www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw | |
| www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases | description | Browse or search the National Eye Institute’s (NEI) resources about dozens of eye conditions and diseases. Get the basics about symptoms, diagnosis, and treatments — or go in depth to see all the details. |
| www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases | google-site-verification | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw |
| www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases | google-site-verification | lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw |
| www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases | google-site-verification | UDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA |
| www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases | viewport | width=device-width, initial-scale=1.0 |
| www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statistics | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw | |
| www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statistics | description | Explore the National Eye Institute’s (NEI) data and statistics on eye health, view eye disease infographics, and find more resources related to eye health. |
| www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statistics | google-site-verification | vityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw |
| www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statistics | google-site-verification | lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw |
| www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statistics | google-site-verification | UDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA |
| www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statistics | viewport | width=device-width, initial-scale=1.0 |
| www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statistics | last-updated | Jun 15, 2022, 4:35:22 PM |
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
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
1392867Estimated monthly organic visitors
- This website appears to have a high number of monthly website visits each month
Source: Ahrefs
Freshness10.0
Last updated May 24, 2023
- It looks like this website was last updated on Wednesday, May 24, 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
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.
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Nibbler tested the following pages
- https://www.nei.nih.gov/
- https://www.nei.nih.gov/learn-about-eye-health
- https://www.nei.nih.gov/learn-about-eye-health/healthy-vision
- https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases
- https://www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statistics