flu.gov

Website review flu.gov

Influenza (Flu) | CDC

 Generated on March 05 2026 23:55 PM

Old data? UPDATE !

The score is 62/100

SEO Content

Title

Influenza (Flu) | CDC

Length : 21

Perfect, your title contains between 10 and 70 characters.

Description

Learn about flu, including symptoms, prevention methods, and treatment options.

Length : 79

Great, your meta description contains between 70 and 160 characters.

Keywords

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Og Meta Properties

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Property Content
type article
title Influenza (Flu)
url https://www.cdc.gov/flu/index.html
description Learn about flu, including symptoms, prevention methods, and treatment options.
site_name Influenza (Flu)
author CDC
image https://www.cdc.gov/flu/images/virus/Flu19_trans_RNPs-small.png?_=39900
image:type image/png
updated_time 2026-02-25T16:35:50-05:00

Headings

H1 H2 H3 H4 H5 H6
1 4 3 0 0 0
  • [H1] Influenza (Flu)
  • [H2] For Everyone
  • [H2] Featured
  • [H2] What's New
  • [H2] Influenza (Flu) 
  • [H3] For Everyone
  • [H3] Health Care Providers
  • [H3] Public Health

Images

We found 15 images on this web page.

3 alt attributes are empty or missing. Add alternative text so that search engines can better understand the content of your images.

Text/HTML Ratio

Ratio : 3%

This page's ratio of text to HTML code is below 15 percent, this means that your website probably needs more text content.

Flash

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Iframe

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URL Rewrite

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Underscores in the URLs

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In-page links

We found a total of 84 links including 0 link(s) to files

Anchor Type Juice
Skip directly to site content Internal Passing Juice
Skip directly to search Internal Passing Juice
Influenza (Flu) Internal Passing Juice
About Internal Passing Juice
Signs and Symptoms Internal Passing Juice
Causes and Spread Internal Passing Juice
Flu Complications and People at Higher Risk Internal Passing Juice
Prevention Internal Passing Juice
Vaccine Basics Internal Passing Juice
Diagnosis Internal Passing Juice
Flu Treatment Internal Passing Juice
View All Internal Passing Juice
Clinical Guidance Internal Passing Juice
Clinical Signs and Symptoms of Influenza Internal Passing Juice
Guidance for Influenza Vaccination Internal Passing Juice
Vaccine Product Information Internal Passing Juice
Clinical Testing and Diagnosis Internal Passing Juice
About Influenza Antiviral Medications Internal Passing Juice
Infection Control Guidance Internal Passing Juice
Laboratory Testing Internal Passing Juice
View All Internal Passing Juice
Home Internal Passing Juice
How CDC Classifies Flu Severity each Season in the United States Internal Passing Juice
Information for Laboratories Internal Passing Juice
Understanding Influenza Viruses Internal Passing Juice
WHO Collaborating Center for Surveillance, Epidemiology and Control of Influenza Internal Passing Juice
Viral Genomic Sequencing Infrastructure Internal Passing Juice
View All Internal Passing Juice
Avian Flu Internal Passing Juice
Swine Flu Internal Passing Juice
Flu in Animals Internal Passing Juice
Flu Vaccines Work Internal Passing Juice
Pandemic Flu Internal Passing Juice
Flu Burden Internal Passing Juice
View Menu Internal Passing Juice
A(H5) Bird Flu: Current Situation Internal Passing Juice
Weekly U.S. Influenza Surveillance Report External Passing Juice
Respiratory Illnesses External Passing Juice
About Estimated Flu Burden Internal Passing Juice
FluVaxView Internal Passing Juice
Information for the Flu Season Internal Passing Juice
Flu Resource Center Internal Passing Juice
Similarities and Differences between Flu and COVID-19 Internal Passing Juice
View More Internal Passing Juice
View All Internal Passing Juice
Sign up for Email Updates External Passing Juice
Contact CDC External Passing Juice
Pressroom External Passing Juice
Organization External Passing Juice
Budget & Funding External Passing Juice
Careers & Jobs External Passing Juice
Accessibility External Passing Juice
External Links External Passing Juice
Privacy External Passing Juice
Web Policies External Passing Juice
FOIA External Passing Juice
OIG External Passing Juice
No Fear Act External Passing Juice
Nondiscrimination External Passing Juice
Vulnerability Disclosure Policy External Passing Juice
Languages External Passing Juice
Español External Passing Juice
Language Assistance External Passing Juice
Español External Passing Juice
繁體中文 External Passing Juice
Tiếng Việt External Passing Juice
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Deutsch External Passing Juice
日本語 External Passing Juice
فارسی External Passing Juice
English External Passing Juice
CDC Archive External Passing Juice
Public Health Publications External Passing Juice
About CDC External Passing Juice
HHS.gov External Passing Juice
USA.gov External Passing Juice

SEO Keywords

Keywords Cloud

treatment bird influenza directly flu burden view sept ah5 respiratory

Keywords Consistency

Keyword Content Title Keywords Description Headings
flu 12
influenza 5
respiratory 3
burden 2
ah5 2

Usability

Url

Domain : flu.gov

Length : 7

Favicon

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Printability

Great. We have found a Print-Friendly CSS.

Language

Good. Your declared language is en.

Dublin Core

Great. This page take advantage of Dublin Core.

Document

Doctype

HTML 5

Encoding

Perfect. Your declared charset is UTF-8.

W3C Validity

Errors : 0

Warnings : 0

Email Privacy

Great no email address has been found in plain text!

Deprecated HTML

Great! We haven't found deprecated HTML tags in your HTML.

Speed Tips

Excellent, your website doesn't use nested tables.
Perfect. No inline css has been found in HTML tags!
Great, your website has few CSS files.
Too bad, your website has too many JS files (more than 6).
Perfect, your website takes advantage of gzip.

Mobile

Mobile Optimization

Apple Icon
Meta Viewport Tag
Flash content

Optimization

XML Sitemap

Great, your website has an XML sitemap.

https://www.cdc.gov/flu/

Robots.txt

https://flu.gov/robots.txt

Great, your website has a robots.txt file.

Analytics

Missing

We didn't detect an analytics tool installed on this website.

Web analytics let you measure visitor activity on your website. You should have at least one analytics tool installed, but It can also be good to install a second in order to cross-check the data.

PageSpeed Insights


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