Nibbler SEO audit for www.nei.nih.gov

Overall9.8

The overall score for this website.

Accessibility10.0

How accessible the website is to mobile and disabled users.

Experience9.8

How satisfying the website is likely to be for users.

Marketing9.5

How well marketed, and popular the website is.

Technology9.9

How well designed and built the website is.

Nibbler tested a sample of 5 pages from this website at 11:26 on 6 Mar 2024 (GMT).

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)

Amount of content8.2

Rendering Chart...

  • This website has an average of 357 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.

Images9.4

31% of images have a clearly defined size

9 images are being resized by the browser

Mobile10.0

Mobile screenshot of www.nei.nih.govTablet screenshot of www.nei.nih.gov
  • All of this website appears to be optimised for viewing on a mobile phone or a tablet.

Media specific CSS detected

MediaMin widthMax widthCSS file
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Server behaviour10.0

Yes404 page

YesCompression

  • 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 behaviour.

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.

Headings10.0

benefits browse bureau care causal cell census centers closing common conditions contact control data department differences discover disease diseases employees espa eyes formation funding genes genetic have health healthy hereditary human identify infographics information insect irvine keep leader learn looking loss lung more nation's news open-angle policies popular prevention primary professional protect quiz rehabilitation research researchers role services shows similarities sources statistics study take things topics treatments types vision your

  • 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.

Page headings detail

URLHeadingLevel
www.nei.nih.gov/National Eye InstituteH1
www.nei.nih.gov/The nation's leader in vision research.H2
www.nei.nih.gov/Popular Eye Health TopicsH2
www.nei.nih.gov/En españolH2
www.nei.nih.gov/Learn about the benefits of vision rehabilitation!H2
www.nei.nih.gov/NEI Research NewsH2
www.nei.nih.gov/Researchers closing in on genetic treatments for hereditary lung disease, vision lossH2
www.nei.nih.gov/UC Irvine study shows similarities and differences in human and insect vision formationH2
www.nei.nih.gov/Researchers identify genes and cell types that may have causal role in primary open-angle glaucoma formationH2
www.nei.nih.gov/Funding for Vision ResearchH2
www.nei.nih.gov/NEI Research InitiativesH2
www.nei.nih.gov/Contact NEIH2
www.nei.nih.gov/PoliciesH2
www.nei.nih.gov/For NEI EmployeesH2
www.nei.nih.gov/learn-about-eye-healthLearn About Eye HealthH1
www.nei.nih.gov/learn-about-eye-healthKeep your eyes healthyH2
www.nei.nih.gov/learn-about-eye-healthLearn about eye conditions and diseasesH2
www.nei.nih.gov/learn-about-eye-healthFinding an eye care professionalH2
www.nei.nih.gov/learn-about-eye-healthGet information about vision rehabilitation servicesH2
www.nei.nih.gov/learn-about-eye-healthHelp kids learn about eye healthH2
www.nei.nih.gov/learn-about-eye-healthCheck out our eye health campaignsH2
www.nei.nih.gov/learn-about-eye-healthPromote eye health in your communityH2
www.nei.nih.gov/learn-about-eye-healthContact NEIH2
www.nei.nih.gov/learn-about-eye-healthPoliciesH2
www.nei.nih.gov/learn-about-eye-healthFor NEI EmployeesH2
www.nei.nih.gov/learn-about-eye-health/healthy-visionHealthy VisionH1
www.nei.nih.gov/learn-about-eye-health/healthy-visionKeep your eyes healthyH2
www.nei.nih.gov/learn-about-eye-health/healthy-visionWhat's in your eye? Take a look around!H2
www.nei.nih.gov/learn-about-eye-health/healthy-visionGet a dilated eye examH2
www.nei.nih.gov/learn-about-eye-health/healthy-visionFind an eye care professionalH2
www.nei.nih.gov/learn-about-eye-health/healthy-visionGet free or low-cost eye careH2
www.nei.nih.gov/learn-about-eye-health/healthy-visionTake our eye health trivia quiz!H2
www.nei.nih.gov/learn-about-eye-health/healthy-visionDiscover 8 things you can do to protect your visionH2
www.nei.nih.gov/learn-about-eye-health/healthy-visionContact NEIH2
www.nei.nih.gov/learn-about-eye-health/healthy-visionPoliciesH2
www.nei.nih.gov/learn-about-eye-health/healthy-visionFor NEI EmployeesH2
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesEye Conditions and DiseasesH1
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesCommon Eye ConditionsH2
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesBrowse Conditions and Diseases A to ZH2
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesLooking for more sources of eye health information?H2
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesContact NEIH2
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesPoliciesH2
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesFor NEI EmployeesH2
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesAH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesBH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesCH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesDH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesFH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesGH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesIH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesLH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesMH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesNH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesOH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesPH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesRH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesSH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesUH3
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesVH3
www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticsEye Health Data and StatisticsH1
www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticsU.S. Department of Health and Human ServicesH2
www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticsCenters for Disease Control and PreventionH2
www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticsU.S. Census BureauH2
www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticsSee our eye disease infographicsH2
www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticsContact NEIH2
www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticsPoliciesH2
www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticsFor NEI EmployeesH2

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 URLNameContent
www.nei.nih.gov/descriptionThe 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/googlevityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw
www.nei.nih.gov/google-site-verificationvityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw
www.nei.nih.gov/google-site-verificationlACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw
www.nei.nih.gov/google-site-verificationUDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA
www.nei.nih.gov/viewportwidth=device-width, initial-scale=1.0
www.nei.nih.gov/learn-about-eye-healthdescriptionLearn 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-healthgooglevityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw
www.nei.nih.gov/learn-about-eye-healthgoogle-site-verificationvityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw
www.nei.nih.gov/learn-about-eye-healthgoogle-site-verificationlACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw
www.nei.nih.gov/learn-about-eye-healthgoogle-site-verificationUDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA
www.nei.nih.gov/learn-about-eye-healthviewportwidth=device-width, initial-scale=1.0
www.nei.nih.gov/learn-about-eye-healthlast-updatedAug 1, 2023, 4:30:16 PM
www.nei.nih.gov/learn-about-eye-health/healthy-visiondescriptionMany 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-visiongooglevityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw
www.nei.nih.gov/learn-about-eye-health/healthy-visiongoogle-site-verificationvityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw
www.nei.nih.gov/learn-about-eye-health/healthy-visiongoogle-site-verificationlACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw
www.nei.nih.gov/learn-about-eye-health/healthy-visiongoogle-site-verificationUDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA
www.nei.nih.gov/learn-about-eye-health/healthy-visionviewportwidth=device-width, initial-scale=1.0
www.nei.nih.gov/learn-about-eye-health/healthy-visionlast-updatedNov 17, 2022, 9:42:06 AM
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesdescriptionBrowse 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-diseasesgooglevityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesgoogle-site-verificationvityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesgoogle-site-verificationlACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesgoogle-site-verificationUDfyeEAWNX_rJUHwog9j1kziEnByGwhkSJGLJclUWDA
www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseasesviewportwidth=device-width, initial-scale=1.0
www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticsdescriptionExplore 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-statisticsgooglevityevxlt8UuVFWvgz9_YwmJ5F0Nby_B3t54LLh-3Zw,lACaj571Gx_VdLF3HKSKUf1Wxx0H_bWxO3BYDZ_C1uw
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www.nei.nih.gov/learn-about-eye-health/eye-health-data-and-statisticslast-updatedJun 15, 2022, 4:35:22 PM

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