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SGSiteGraph

mitgcm.org

MITgcm

Last scanned Jul 27, 2026, 12:43 PM

75

Overall score

Fair

Summary

This website uses WordPress hosted on MIT-GATEWAYS - Massachusetts Institute of Technology, US. SEO is fair (65/100) and accessibility is fair (70/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.

United States
Hosted on MIT-GATEWAYS - Massachusetts Institute of Technology, US

Top issues to fix

10 issues found · 4 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

+4 more issues — details in the sections below.

65

SEO

5 issue(s) found

100

Performance

295 ms

65

Security

HTTPS & header checks

70

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
MITgcm
Description
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
noindex,nofollow
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

CDN provider
IP address
18.18.83.71
ASN
AS3 (MIT-GATEWAYS - Massachusetts Institute of Technology, US)

DNS records

TypeValue
A
  • 18.18.83.71
AAAA
MX
  • mailman.mitgcm.org
TXT
  • v=spf1 a mx a:mitgcm-mm.mit.edu ip4:18.18.83.0/24 include:_spf.google.com ~all
NS
  • ns-303.awsdns-37.com
  • ns-595.awsdns-10.net
  • ns-1196.awsdns-21.org
  • ns-1926.awsdns-48.co.uk
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
Let's Encrypt
Subject
mitgcm.org
Valid from
Jun 8, 2026
Valid to
Sep 6, 2026
Days until expiry
40
SAN domains
mitgcm.org

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 7 · H2 0 · H3 0

Links

24 internal · 1 external · 0 broken

Images

10 total · 10 missing alt

Scripts / Styles

15 scripts · 6 stylesheets

JS / CSS size

863 KB · 268 KB

Page size

27.0 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
1
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Missing meta description
  • Missing canonical link
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags

Accessibility issues

  • Over half of images are missing alt text

Scan details

Requested URL
https://mitgcm.org
Final URL
https://mitgcm.org
HTTP status
200
HTTP version
HTTP/1.1
Response time
295 ms
HTML size
27.0 KB
Redirect chain
https://mitgcm.org

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Frequently asked questions

What technology does mitgcm.org use?
mitgcm.org is built with PHP, WordPress, jQuery, Apache.
Is mitgcm.org secure (HTTPS)?
Yes. mitgcm.org uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 6, 2026.
Who hosts mitgcm.org?
mitgcm.org is hosted on MIT-GATEWAYS - Massachusetts Institute of Technology, US.
What is mitgcm.org's SEO score?
mitgcm.org scored 65/100 for SEO in the latest analysis (fair).
What is mitgcm.org's overall website score?
mitgcm.org has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.