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mensa.org

Mensa International – Welcome

Last scanned Jul 26, 2026, 11:49 AM

81

Overall score

Great

Summary

Welcome to Mensa, the High IQ Society. This website uses WordPress hosted on IONOS-AS - IONOS SE, DE. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance fair (70/100). Top issue: Multiple H1 headings found.

Welcome to Mensa, the High IQ Society. Mensa has around 150,000 members of all ages in 90+ countries worldwide.

United Kingdom
Hosted on IONOS-AS - IONOS SE, DE

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.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • 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

70

Performance

2.24 s

65

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.

Welcome to Mensa, the High IQ Society. Mensa has around 150,000 members of all ages in 90+ countries worldwide.

FacebookX (Twitter)YouTubeInstagramLinkedIn

Meta tags

Title
Mensa International – Welcome
Description
Welcome to Mensa, the High IQ Society. Mensa has around 150,000 members of all ages in 90+ countries worldwide.
Canonical
https://www.mensa.org/
Language
en
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
Mensa International – Welcome
og:description
Welcome to Mensa, the High IQ Society. Mensa has around 150,000 members of all ages in 90+ countries worldwide.
og:type
website
og:url
https://www.mensa.org/

Twitter Card

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

Technologies

Detected frameworks, languages, and tools.

ReactWordPressjQueryGoogle AnalyticsApache

Hosting & CDN

Hosting provider
IONOS-AS - IONOS SE, DE
CDN provider
—
IP address
109.228.34.171
ASN
AS8560 (IONOS-AS - IONOS SE, DE)

DNS records

TypeValue
A
  • 109.228.34.171
AAAA
  • 2a00:da00:100f:f000::200
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportYes

TLS / SSL certificate

Version
TLS 1.3
Issuer
Sectigo Limited
Subject
mensa.org
Valid from
Apr 19, 2026
Valid to
Nov 1, 2026
Days until expiry
96
SAN domains
mensa.org, www.mensa.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 2 · H2 24 · H3 13

Links

25 internal · 8 external · 2 broken

Images

80 total · 0 missing alt

Scripts / Styles

61 scripts · 65 stylesheets

JS / CSS size

685 KB · 493 KB

Page size

720 KB

Robots.txt & Sitemap

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

SEO issues

  • Multiple H1 headings found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://mensa.org
Final URL
https://www.mensa.org/
HTTP status
200
HTTP version
HTTP/2
Response time
2.22 s
HTML size
720 KB
Redirect chain
https://mensa.org → https://www.mensa.org/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does mensa.org use?
mensa.org is built with React, WordPress, jQuery, Google Analytics, Apache.
Is mensa.org secure (HTTPS)?
Yes. mensa.org uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Nov 1, 2026.
Who hosts mensa.org?
mensa.org is hosted on IONOS-AS - IONOS SE, DE.
What is mensa.org's SEO score?
mensa.org scored 90/100 for SEO in the latest analysis (excellent).
What is mensa.org's overall website score?
mensa.org has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.