adlerplanetarium.org
Home - Adler Planetarium
Last scanned Jul 27, 2026, 4:43 PM
Overall score
Great
Summary
Chicago's Adler Planetarium is America's first planetarium and a premiere resource for inspiring the next generation of space explorers. This website uses WordPress hosted on Fastly behind Fastly CDN. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance fair (70/100). Top issue: Multiple H1 headings found.
Chicago's Adler Planetarium is America's first planetarium and a premiere resource for inspiring the next generation of space explorers.
- United States
- Hosted on Fastly
Top issues to fix
7 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
+1 more issue — details in the sections below.
SEO
1 issue(s) found
Performance
2.89 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Home - Adler Planetarium
- Description
- Chicago's Adler Planetarium is America's first planetarium and a premiere resource for inspiring the next generation of space explorers.
- Canonical
- https://www.adlerplanetarium.org/
- Language
- en-US
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, shrink-to-fit=no
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
- https://www.adlerplanetarium.org/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME |
|
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- adlerplanetarium.org
- Valid from
- Jun 8, 2026
- Valid to
- Sep 6, 2026
- Days until expiry
- 41
- SAN domains
- adlerplanetarium.org, www.adlerplanetarium.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 2 · H2 7 · H3 19
Links
55 internal · 11 external · 2 broken
Images
8 total · 0 missing alt
Scripts / Styles
5 scripts · 1 stylesheets
JS / CSS size
134 KB · 317 KB
Page size
631 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 7
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Multiple H1 headings found
Accessibility issues
No accessibility issues detected.
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Team
People listed on this site's own team or about page.
Dr. Samantha Blickhan
Co-Director of Zooniverse, Zooniverse Humanities Lead
Kelly Borden
Director of Youth Engagement
Dr. Katie Boyce-Jacino
Curator & Director of Collections
Delaney Cummings
Collections Specialist
Dr. Shanika Galaudage
CIERA-Adler Postdoctoral Fellow
Dr. Geza Gyuk
Senior Director of Astronomy
Chris Helms
Senior Collections Manager
Dr. L. Clifton Johnson
Co-Director of Adler Zooniverse, Zooniverse Science Lead
Dr. Andrew Johnston
Vice President of Museum Experience and Collections
Patrick McPike
Visualization Engineer
Scan details
- Requested URL
- https://adlerplanetarium.org
- Final URL
- https://www.adlerplanetarium.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 2.88 s
- HTML size
- 631 KB
- Redirect chain
- https://adlerplanetarium.org → https://www.adlerplanetarium.org/
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Frequently asked questions
- What technology does adlerplanetarium.org use?
- adlerplanetarium.org is built with WordPress, Google Analytics, Nginx.
- Is adlerplanetarium.org secure (HTTPS)?
- Yes. adlerplanetarium.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 6, 2026.
- Who hosts adlerplanetarium.org?
- adlerplanetarium.org is hosted on Fastly, behind Fastly CDN.
- What is adlerplanetarium.org's SEO score?
- adlerplanetarium.org scored 95/100 for SEO in the latest analysis (excellent).
- What is adlerplanetarium.org's overall website score?
- adlerplanetarium.org has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
- Is adlerplanetarium.org hiring?
- adlerplanetarium.org has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card