Skip to main content
SGSiteGraph

stroke.org

American Stroke Association

Last scanned Jul 26, 2026, 5:17 AM · 1 view

87

Overall score

Great

Summary

The American Stroke Association is a relentless force for a healthier world with fewer strokes. This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (90/100). Top issue: No structured data (JSON-LD) found.

The American Stroke Association is a relentless force for a healthier world with fewer strokes.

United States
Hosted on Cloudflare

Top issues to fix

7 issues found · 1 high priority

  • Missing Strict-Transport-Security header

    Security

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

  • 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 cookie without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

85

SEO

2 issue(s) found

90

Performance

541 ms

75

Security

HTTPS & header checks

100

Accessibility

0 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.

Organization

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

The American Stroke Association is a relentless force for a healthier world with fewer strokes.

Contact

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

Meta tags

Title
American Stroke Association
Description
The American Stroke Association is a relentless force for a healthier world with fewer strokes.
Canonical
https://www.stroke.org/en/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0, user-scalable=yes
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
American Stroke Association | A Division of the American Heart Association
og:description
The American Stroke Association is a relentless force for a healthier world with fewer strokes.
og:type
website
og:url
https://www.stroke.org/en/

Twitter Card

twitter:card
summary_large_image
twitter:title
American Stroke Association | A Division of the American Heart Association
twitter:description
The American Stroke Association is a relentless force for a healthier world with fewer strokes.

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Cloudflare
CDN provider
Cloudflare
IP address
104.18.21.19
ASN
AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)

DNS records

TypeValue
A
  • 104.18.21.19
  • 104.18.20.19
AAAA
  • 2606:4700::6812:1413
  • 2606:4700::6812:1513
MX
TXT
NS
CAA
CNAME
  • stroke.org.cdn.cloudflare.net
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Google Trust Services
Subject
www.stroke.org
Valid from
May 29, 2026
Valid to
Aug 27, 2026
Days until expiry
31
SAN domains
www.stroke.org

Security headers

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

Compression: gzip · 6 cookie(s) observed

Content & assets

Headings

H1 1 · H2 23 · H3 2

Links

83 internal · 78 external · 3 broken

Images

35 total · 0 missing alt

Scripts / Styles

17 scripts · 6 stylesheets

JS / CSS size

931 KB · 478 KB

Page size

131 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
10
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • No structured data (JSON-LD) found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://stroke.org
Final URL
https://www.stroke.org/
HTTP status
200
HTTP version
HTTP/2
Response time
539 ms
HTML size
131 KB
Redirect chain
https://stroke.org → https://www.stroke.org/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does stroke.org use?
stroke.org is built with Cloudflare Analytics.
Is stroke.org secure (HTTPS)?
Yes. stroke.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Aug 27, 2026.
Who hosts stroke.org?
stroke.org is hosted on Cloudflare, behind Cloudflare CDN.
What is stroke.org's SEO score?
stroke.org scored 85/100 for SEO in the latest analysis (great).
What is stroke.org's overall website score?
stroke.org has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.