mysteryscience.com
Mystery Science: Lessons for elementary teachers
Last scanned Jul 26, 2026, 11:19 AM
Overall score
Great
Summary
Mystery Science offers open-and-go lessons that inspire kids to love science. This website uses Ruby on Rails. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Mystery Science offers open-and-go lessons that inspire kids to love science. The hook, visuals, and activity have all been prepared for you. Less prep, more learning.
Top issues to fix
8 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
915 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Mystery Science offers open-and-go lessons that inspire kids to love science. The hook, visuals, and activity have all been prepared for you. Less prep, more learning.
Meta tags
- Title
- Mystery Science: Lessons for elementary teachers
- Description
- Mystery Science offers open-and-go lessons that inspire kids to love science. The hook, visuals, and activity have all been prepared for you. Less prep, more learning.
- Canonical
- https://mysteryscience.com/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- mysteryscience.com
- Valid from
- Jul 14, 2026
- Valid to
- Oct 12, 2026
- Days until expiry
- 76
- SAN domains
- mysteryscience.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 3 cookie(s) observed
Content & assets
Headings
H1 3 · H2 9 · H3 56
Links
37 internal · 6 external · 20 broken
Images
29 total · 0 missing alt
Scripts / Styles
13 scripts · 3 stylesheets
JS / CSS size
77.8 KB · 0 B
Page size
238 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Multiple H1 headings found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://mysteryscience.com
- Final URL
- https://mysteryscience.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 911 ms
- HTML size
- 238 KB
- Redirect chain
- https://mysteryscience.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does mysteryscience.com use?
- mysteryscience.com is built with Ruby on Rails.
- Is mysteryscience.com secure (HTTPS)?
- Yes. mysteryscience.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 12, 2026.
- Who hosts mysteryscience.com?
- Hosting provider information for mysteryscience.com is not available yet.
- What is mysteryscience.com's SEO score?
- mysteryscience.com scored 70/100 for SEO in the latest analysis (fair).
- What is mysteryscience.com's overall website score?
- mysteryscience.com has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card