iris.edu
SAGE
Last scanned Jul 26, 2026, 5:17 AM · 2 views
Overall score
Fair
Summary
Seismological Facility for the Advancement of Geoscience (SAGE) is a distributed, multi-user national facility operated by EarthScope that provides state of-the-art seismic and related geophysical instrumentation and ser… This website uses Google Analytics hosted on AWS. SEO is fair (60/100) and accessibility is fair (50/100). Security scores good (75/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
Seismological Facility for the Advancement of Geoscience (SAGE) is a distributed, multi-user national facility operated by EarthScope that provides state of-the-art seismic and related geophysical instrumentation and services to support research and education in the geosciences.
- United States
- Hosted on AWS
Top issues to fix
13 issues found · 4 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.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
5 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.
+7 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
1.87 s
Security
HTTPS & header checks
Accessibility
3 issue(s) found
Organization
Company details published in this site's own structured data.
Seismological Facility for the Advancement of Geoscience (SAGE) is a distributed, multi-user national facility operated by EarthScope that provides state of-the-art seismic and related geophysical instrumentation and services to support research and education in the geosciences.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- SAGE
- Description
- Seismological Facility for the Advancement of Geoscience (SAGE) is a distributed, multi-user national facility operated by EarthScope that provides state of-the-art seismic and related geophysical instrumentation and services to support research and education in the geosciences.
- Canonical
- Language
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- —
- IP address
- 3.134.246.243
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- *.iris.edu
- Valid from
- Jan 26, 2026
- Valid to
- Jan 8, 2027
- Days until expiry
- 164
- SAN domains
- *.iris.edu, iris.edu
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 5 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 3
Links
49 internal · 30 external · 1 broken
Images
18 total · 12 missing alt
Scripts / Styles
15 scripts · 4 stylesheets
JS / CSS size
339 KB · 48.4 KB
Page size
31.9 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 1
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
- No H1 heading found
- Missing <html lang> attribute
Scan details
- Requested URL
- https://iris.edu
- Final URL
- https://www.iris.edu/hq/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 1.87 s
- HTML size
- 31.9 KB
- Redirect chain
- https://iris.edu → https://www.iris.edu/ → http://www.iris.edu/hq/ → https://www.iris.edu/hq/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does iris.edu use?
- iris.edu is built with Bootstrap, jQuery, Google Analytics.
- Is iris.edu secure (HTTPS)?
- Yes. iris.edu uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Jan 8, 2027.
- Who hosts iris.edu?
- iris.edu is hosted on AWS.
- What is iris.edu's SEO score?
- iris.edu scored 60/100 for SEO in the latest analysis (fair).
- What is iris.edu's overall website score?
- iris.edu has an overall SiteGraph score of 69/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card