aavso.org
Home | aavso
Last scanned Jul 26, 2026, 4:17 PM · 1 view
Overall score
Great
Summary
This website uses Apache. SEO is fair (60/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing meta description.
Top issues to fix
8 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
769 ms
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.
- aavso@aavso.org
Meta tags
- Title
- Home | aavso
- Description
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- 100.52.15.175
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Amazon
- Subject
- *.aavso.org
- Valid from
- Jun 9, 2026
- Valid to
- Dec 23, 2026
- Days until expiry
- 147
- SAN domains
- *.aavso.org, *.apps.aavso.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 8 · H3 3
Links
45 internal · 19 external · 1 broken
Images
33 total · 5 missing alt
Scripts / Styles
11 scripts · 2 stylesheets
JS / CSS size
480 KB · 179 KB
Page size
61.1 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://aavso.org
- Final URL
- https://www.aavso.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 768 ms
- HTML size
- 61.1 KB
- Redirect chain
- https://aavso.org → https://www.aavso.org/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does aavso.org use?
- aavso.org is built with Drupal, Google Analytics, Apache.
- Is aavso.org secure (HTTPS)?
- Yes. aavso.org uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 23, 2026.
- Who hosts aavso.org?
- Hosting provider information for aavso.org is not available yet.
- What is aavso.org's SEO score?
- aavso.org scored 60/100 for SEO in the latest analysis (fair).
- What is aavso.org's overall website score?
- aavso.org has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card