Website Review: health.harvard.edu
Generated on October 07 2026 01:23 AM
Old data? UPDATE !
The score is 69/100
SEO Content
Title
Health Information and Medical Information - Harvard Health
Length : 59
Great, your title tag's length is between 40 and 70 characters. Title tag length between 50 and 70 characters is optimal for SEO.
Description
Find the best information about living a healthier life from the trusted medical team at Harvard Medical School. Trusted advice for a healthier life.
Length : 149
Great, your meta description tag's length is between 90 and 160 characters. A description tag of 155 to 160 characters is optimal.
Keywords
health information, medical information, health news, health report, health newsletters, health newsletter, Harvard Health Publications, Harvard Health Publishing, Harvard Health, health.harvard.edu, health harvard edu, Harvard Heart Letter, Harvard Health Letter, Harvard Women's Health Watch, Harvard Mental Health Letter, Harvard Men's Health Watch, Perspectives on Prostate Disease
Good, your page contains a meta keywords tag.
Og Meta Properties
Good, your page takes advantage of Open Graph Properties. Open Graph properties can help with indexing.
| Property | Content |
|---|---|
| site_name | Harvard Health |
| title | Health Information and Medical Information - Harvard Health |
| description | Find the best information about living a healthier life from the trusted medical team at Harvard Medical School. Trusted advice for a healthier life. |
| locale | en_US |
| type | website |
| url | https://www.health.harvard.edu/ |
| image | https://www.health.harvard.edu/img/hhp-social-share.jpg |
| image:alt | Harvard Health Publishing - Harvard Medical School |
Headings
| H1 | H2 | H3 | H4 | H5 | H6 |
| 1 | 12 | 25 | 0 | 0 | 0 |
- [H1] Harvard Health Publishing
- [H2] Main Content
- [H2] Helpful Links
- [H2] Melatonin or magnesium: Can either supplement help you sleep?
- [H2] Trending Articles
- [H2] Choose the plan that fits your goals
- [H2] Common Conditions
- [H2] Staying Healthy
- [H2] Harvard Health Publishing Resources
- [H2] Harvard Health Publishing Editorial Board
- [H2] License Harvard Health Content
- [H2] Free Healthbeat Signup
- [H2] Footer
- [H3] Rosacea treatments: What works?
- [H3] The surprising cognitive costs of multitasking
- [H3] Understanding orthorexia: Have your healthy eating goals gone too far?
- [H3] Basic Bundle
- [H3] Core Wellness
- [H3] Complete Wellness
- [H3] Total Vitality
- [H3] Top questions about heart valve replacement
- [H3] Deprescribing heart medications
- [H3] Salmonella, E. coli, Cyclospora, and other germs that cause food poisoning: What you need to know
- [H3] Carb cycling: What is it, and does it work?
- [H3] Melatonin or magnesium: Can either supplement help you sleep?
- [H3] From periods to menopause: How estrogen levels throughout life affect women's brain health
- [H3] Harvard Health Online Subscribers
- [H3] Editorial Features
- [H3] Products
- [H3] Chika V. Anekwe, MD, MPH
- [H3] Dara Lee Lewis, MD
- [H3] Lauren Elson, MD
- [H3] Teresa Fung, ScD, RD
- [H3] Howard E. LeWine, MD
- [H3] Robert H. Shmerling, MD
- [H3] My Account
- [H3] Order Now
- [H3] More
Images
We found 45 images on this web page.
2 image alt attributes were missing. Please add alt text to all images to help search engines better understand the content of your images.
Text/HTML Ratio
Ratio : 2%
This page's ratio of text to HTML code is below 20 percent, this means that your website probably needs more text content in order to do well in search engines. Note: This may also result from a false reading due to your server blocking external scripts from accessing the home page.
Iframe
Not ideal - You have Iframes on the web page, this mean that content in an Iframe cannot be indexed.
SEO Links
URL Rewrite
Bad. We found links with query strings (?). Avoid using query strings to improve search engine indexing. Use URL rewriting (for example, rewrite rules in an .htaccess file) to replace dynamic URLs with clean ones. Our free URL rewriting tool generates the rules.
Underscores in the URLs
We have detected underscores in your URLs. It would be better to use hyphens to optimize your SEO.
In-page links
We found a total of 40 links including 0 link(s) to files
| Anchor | Type | Juice |
|---|---|---|
| Skip to main content | Internal | Passing Juice |
| HarvardHealthOnline+ | Internal | Passing Juice |
| Customer Service | Internal | Passing Juice |
| Content Licensing | Internal | Passing Juice |
| About Us | Internal | Passing Juice |
| Subscriptions | Internal | Passing Juice |
| Special Health Reports | Internal | Passing Juice |
| Online Courses | External | Passing Juice |
| Pay My Bill | Internal | Passing Juice |
| HarvardHealthOnline+ | Internal | Passing Juice |
| Common Conditions | Internal | Passing Juice |
| Staying Healthy | Internal | Passing Juice |
| Resources | Internal | Passing Juice |
| Ask Our Experts | Internal | Passing Juice |
| Free HealthBeat Signup | Internal | Passing Juice |
| Online Courses | External | Passing Juice |
| Melatonin or magnesium: Can either supplement help you sleep? | Internal | Passing Juice |
| Login | Internal | Passing Juice |
| select plan | Internal | Passing Juice |
| select plan | Internal | Passing Juice |
| select plan | Internal | Passing Juice |
| select plan | Internal | Passing Juice |
| Harvard Health Newsletters | Internal | Passing Juice |
| Health A to Z | Internal | Passing Juice |
| Diagnostic Tests and Medical Procedures | Internal | Passing Juice |
| Health Decision Guides | Internal | Passing Juice |
| Adult Autism Health Resources | Internal | Passing Juice |
| Birth Control Center | Internal | Passing Juice |
| Harvard Health Blog | Internal | Passing Juice |
| Harvard Prostate Knowledge | Internal | Passing Juice |
| HHP Medication Safety Watch | Internal | Passing Juice |
| Lyme Wellness Initiative | Internal | Passing Juice |
| Mindscape: Helping young minds thrive | Internal | Passing Juice |
| Online Learning Courses | External | Passing Juice |
| Privacy Policy | Internal | Passing Juice |
| Cookie Policy | Internal | Passing Juice |
| Terms of Use | Internal | Passing Juice |
| Harvard Health Publishing® | External | Passing Juice |
| Privacy Policy | External | Passing Juice |
| Terms of Service | External | Passing Juice |
SEO Keywords
Keywords Consistency
| Keyword | Content | Title | Keywords | Description | Headings |
|---|---|---|---|---|---|
| health | 9 |  |
|
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| get | 7 |  |
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| value | 7 | |
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| showcontent | 6 | |
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| harvard | 4 | |
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Usability
Url
Domain : health.harvard.edu
Length : 18
Favicon
Great, your website has a favicon.
Language
Good. Your declared language is en.
Document
Doctype
HTML 5
Encoding
Great. Your declared charset is UTF-8.
Email Privacy
Great no email address was found in plain text!
Deprecated HTML
Great! We haven't found deprecated HTML tags in your HTML.
Speed Tips
|
Not great, your website is using inline styles. This is not optimal. |
|
Great, your website has few CSS files. |
|
Perfect, your website has few JavaScript files. |
|
Awesome, your website takes advantage of GZIP compression for SEO optimization. |
Mobile
Mobile Optimization
|
Apple Icon |
|
Meta Viewport Tag |
Optimization
XML Sitemap
Great, your website has an XML sitemap.
| https://www.health.harvard.edu/sitemap.xml |
Robots.txt
http://health.harvard.edu/robots.txt
Great, your website has a robots.txt file.
Analytics
Missing
Unverified
AI Search Readiness
AI Crawlers
AI search crawlers are allowed, so the site can be shown and cited in AI answers (ChatGPT, Claude, Perplexity).
|
OAI-SearchBot | ChatGPT search | AI search |
|
ChatGPT-User | ChatGPT (user requests) | AI search |
|
Claude-SearchBot | Claude search | AI search |
|
Claude-User | Claude (user requests) | AI search |
|
PerplexityBot | Perplexity | AI search |
|
GPTBot | OpenAI training | AI training |
|
ClaudeBot | Anthropic training | AI training |
|
Google-Extended | Google Gemini training | AI training |
|
Applebot-Extended | Apple AI training | AI training |
|
CCBot | Common Crawl | AI training |
Blocking AI training crawlers is a common choice and doesn't affect the score. Only the AI search crawlers count.
Structured Data
The homepage describes itself with schema.org structured data, which helps search engines and AI tools understand it: Organization, PostalAddress, ContactPoint, ImageObject, Website, SearchAction, EntryPoint, WebPage
Canonical Tag
The homepage has a canonical tag, which tells search engines which URL is the main version of the page.
llms.txt
No llms.txt file. It's an emerging convention: a short Markdown summary of the site for AI tools. Optional, so it doesn't affect the score.
Security
HTTPS
The site loads over HTTPS, so connections are encrypted. Browsers and search engines expect this.
HSTS
The site sends a Strict-Transport-Security header, so browsers always use HTTPS for it.
Security Headers
3 of 5 common security headers found. At least 2 are needed to pass.
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Content-Security-Policy |
|
X-Content-Type-Options |
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X-Frame-Options |
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Referrer-Policy |
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Permissions-Policy |
Domain Info
health.harvard.edu accepts email and has both SPF and DMARC records.
Hosting
| IPv4 address | 54.165.240.143 |
|
IPv6 support |
Email Security
Mail servers: mx0b-00171101.pphosted.com, mx0a-00171101.pphosted.com
|
SPF record |
|
DMARC record (policy: none) |
PageSpeed Insights
Device
Categories
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