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casel.org

Advancing Social and Emotional Learning - CASEL

Last scanned Aug 7, 2026, 5:00 AM · 12 views

88

Overall score

Great

Summary

CASEL is helping make evidence-based social and emotional learning an integral part of education, preschool through high school. This website uses WordPress. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: robots.txt not found.

CASEL is helping make evidence-based social and emotional learning an integral part of education, preschool through high school.

Top issues to fix

7 issues found · 2 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 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.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • 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.

90

SEO

2 issue(s) found

100

Performance

263 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-1 overall since Jul 26, 2026

Overall
88
SEO
90
Security
65
Performance
100
Accessibility
100

Organization

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

CASEL is helping make evidence-based social and emotional learning an integral part of education, preschool through high school.

FacebookYouTubeX (Twitter)LinkedInInstagram

Meta tags

Title
Advancing Social and Emotional Learning - CASEL
Description
CASEL is helping make evidence-based social and emotional learning an integral part of education, preschool through high school.
Canonical
https://casel.org/
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Advancing Social and Emotional Learning - CASEL
og:description
CASEL is helping make evidence-based social and emotional learning an integral part of education, preschool through high school.
og:type
website
og:url
https://casel.org/

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

WordPressjQueryGoogle AnalyticsApache

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
leadingwithsel.org
Valid from
Jul 16, 2026
Valid to
Oct 14, 2026
Days until expiry
68
SAN domains
casel.org, drc.casel.org, leadingwithsel.org, pg.casel.org, schoolguide.casel.org, selexchange.casel.org, signaturepractices.casel.org, www.casel.org, www.leadingwithsel.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 1 · H2 4 · H3 1

Links

53 internal · 18 external · 20 broken

Images

6 total · 0 missing alt

Scripts / Styles

33 scripts · 8 stylesheets

JS / CSS size

9.0 KB · 11.0 KB

Page size

84.5 KB

Robots.txt & Sitemap

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

SEO issues

  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://casel.org
Final URL
https://casel.org
HTTP status
200
HTTP version
HTTP/1.1
Response time
262 ms
HTML size
84.5 KB
Redirect chain
https://casel.org

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does casel.org use?
casel.org is built with WordPress, jQuery, Google Analytics, Apache.
Is casel.org secure (HTTPS)?
Yes. casel.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 14, 2026.
Who hosts casel.org?
Hosting provider information for casel.org is not available yet.
What is casel.org's SEO score?
casel.org scored 90/100 for SEO in the latest analysis (excellent).
What is casel.org's overall website score?
casel.org has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
Has casel.org's score changed over time?
casel.org's overall score has declined by 1 point (from 89 to 88) since Jul 26, 2026.