si.edu Accessibility
si.edu Botability
si.edu Security
si.edu Usability
si.edu Readability
- Managed by: Smithsonian Institution
- Status: 995
- Pages: 1 (homepage only · get full site scan)
- Last scan: 10/2/2026
Grade / score
About accessibility
Meet WCAG standards so every type of user can use your website.
Why it's important
People with disabilities need equal access to information and services online.
Risks
- People with disabilities cannot use your site.
Guidance
What we use to grade accessibility:
Grades/scores
ScanGov
Grade / score
About botability
Help AI and search engines discover, crawl, and index your website.
Why it's important
Smart technology can better process and share public information, making services faster and more efficient for users.
Risks
- AI tools cannot find or understand your content.
Guidance
What we use to grade botability:
- 21st Century Integrated Digital Experience Act (IDEA)
- The Web Robots Pages
- Schema.org
- sitemaps.org
- Google Search Central
Grades/scores
ScanGov
Grade / score
About security
Secure your site and protect users with proper security practices.
Why it's important
Strong defenses prevent hackers from stealing personal information and other confidential data.
Risks
- Hackers can steal private information from your site.
Guidance
What we use to grade security:
- CISA Website Security
- 21st Century Integrated Digital Experience Act (IDEA)
- CISA Cybersecurity Performance Goals
- RFC 9116
- OWASP Top 10
- U.S. Federal Website Standards
Grades/scores
ScanGov
Grade / score
About usability
Optimize content structure so users quickly find what they need.
Why it's important
Well-written pages help people understand laws, services, and procedures without confusion, reducing calls and office visits.
Risks
- Users cannot understand your information.
Guidance
What we use to grade usability:
- 21st Century Integrated Digital Experience Act (IDEA)
- U.S. Federal Website Standards
- Google Search Central
- Web Vitals / Core Web Vitals
- Open Graph
Grades/scores
ScanGov
Grade / score
About readability
Write content at a reading level most users can understand.
Why it's important
Plain language helps people understand services and procedures the first time, reducing calls, errors and office visits.
Risks
- Users cannot understand your content.
Guidance
What we use to grade readability:
- 21st Century Integrated Digital Experience Act (IDEA)
- Automated Readability Index (ARI)
- Flesch-Kincaid (FK)
- U.S. Federal Website Standards
- Plain Writing Act of 2010