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SGSiteGraph

immunize.org

Home | Immunize.org

Last scanned Aug 7, 2026, 5:22 AM · 8 views

77

Overall score

Fair

Summary

This website uses WordPress hosted on Fastly behind Fastly CDN. SEO is good (80/100) and accessibility is excellent (90/100). Security scores fair (60/100) and performance good (80/100). Top issue: Missing meta description.

United States
Hosted on Fastly

Top issues to fix

7 issues found · 4 high priority

  • TLS certificate expires in 12 days

    Security

    Renew now (or enable auto-renewal) — an expired certificate blocks visitors with a full-page browser warning.

  • 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.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • 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.

+1 more issue — details in the sections below.

80

SEO

2 issue(s) found

80

Performance

21 ms

60

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Score history

-4 overall since Jul 26, 2026

Overall
77
SEO
80
Security
60
Performance
80
Accessibility
90

Organization

Company details published in this site's own structured data.

FacebookInstagramLinkedInYouTube

Contact

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

Source: https://www.immunize.org/about/org/contact/

Meta tags

Title
Home | Immunize.org
Description
Canonical
https://www.immunize.org/
Language
en-US
Charset
UTF-8
Viewport
width=device-width, initial-scale=1
Robots meta
index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Home | Immunize.org
og:description
—
og:type
website
og:url
https://www.immunize.org/

Twitter Card

twitter:card
summary_large_image
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

WordPressjQueryGoogle AnalyticsNginx

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
151.101.3.52
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 151.101.3.52
  • 151.101.195.52
  • 151.101.131.52
  • 151.101.67.52
AAAA
  • 2a04:4e42::820
  • 2a04:4e42:400::820
  • 2a04:4e42:200::820
  • 2a04:4e42:600::820
MX—
TXT—
NS—
CAA—
CNAME
  • dualstack.t.sni.global.fastly.net
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Certainly
Subject
immunize.org
Valid from
Jul 20, 2026
Valid to
Aug 19, 2026
Days until expiry
12
SAN domains
*.immunize.org, immunize.org

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 6 · H3 1

Links

240 internal · 20 external · 1 broken

Images

12 total · 0 missing alt

Scripts / Styles

41 scripts · 9 stylesheets

JS / CSS size

821 KB · 2.8 MB

Page size

429 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
5
sitemap.xml
Found
URLs in sitemap
-1

SEO issues

  • Missing meta description
  • No H1 heading found

Accessibility issues

  • No H1 heading found

Scan details

Requested URL
https://immunize.org
Final URL
https://www.immunize.org/
HTTP status
200
HTTP version
HTTP/2
Response time
13 ms
HTML size
429 KB
Redirect chain
https://immunize.org → https://www.immunize.org/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does immunize.org use?
immunize.org is built with WordPress, jQuery, Google Analytics, Nginx.
Is immunize.org secure (HTTPS)?
Yes. immunize.org uses TLS 1.3 with a certificate issued by Certainly, valid until Aug 19, 2026.
Who hosts immunize.org?
immunize.org is hosted on Fastly, behind Fastly CDN.
What is immunize.org's SEO score?
immunize.org scored 80/100 for SEO in the latest analysis (great).
What is immunize.org's overall website score?
immunize.org has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
Has immunize.org's score changed over time?
immunize.org's overall score has declined by 4 points (from 81 to 77) since Jul 26, 2026.