effectivealtruism.org
Effective Altruism | Find the best ways to help others
Last scanned Aug 6, 2026, 4:00 AM · 13 views
Overall score
Great
Summary
Effective altruism is a philosophy and a movement that asks the question: how can we do the most good with our time, money, and resources?. This website uses Next.js behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance good (75/100). Top issue: robots.txt not found.
Effective altruism is a philosophy and a movement that asks the question: how can we do the most good with our time, money, and resources?
Top issues to fix
6 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
2 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
2 issue(s) found
Performance
515 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 85
- SEO
- 90
- Security
- 75
- Performance
- 75
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Effective altruism is a philosophy and a movement that asks the question: how can we do the most good with our time, money, and resources?
Meta tags
- Title
- Effective Altruism | Find the best ways to help others
- Description
- Effective altruism is a philosophy and a movement that asks the question: how can we do the most good with our time, money, and resources?
- Canonical
- https://www.effectivealtruism.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- effectivealtruism.org
- Valid from
- Jul 3, 2026
- Valid to
- Oct 1, 2026
- Days until expiry
- 56
- SAN domains
- *.effectivealtruism.org, effectivealtruism.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 1 · H2 6 · H3 3
Links
42 internal · 50 external · 2 broken
Images
64 total · 6 missing alt
Scripts / Styles
43 scripts · 2 stylesheets
JS / CSS size
1.2 MB · 96.8 KB
Page size
531 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://effectivealtruism.org
- Final URL
- https://www.effectivealtruism.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 505 ms
- HTML size
- 531 KB
- Redirect chain
- https://effectivealtruism.org → https://www.effectivealtruism.org/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does effectivealtruism.org use?
- effectivealtruism.org is built with Next.js, Google Analytics, Plausible Analytics, Cloudflare Analytics, Google Ads, Meta Pixel.
- Is effectivealtruism.org secure (HTTPS)?
- Yes. effectivealtruism.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 1, 2026.
- Who hosts effectivealtruism.org?
- Hosting provider information for effectivealtruism.org is not available yet.
- What is effectivealtruism.org's SEO score?
- effectivealtruism.org scored 90/100 for SEO in the latest analysis (excellent).
- What is effectivealtruism.org's overall website score?
- effectivealtruism.org has an overall SiteGraph score of 85/100, combining SEO, performance, security, and accessibility.
- Has effectivealtruism.org's score changed over time?
- effectivealtruism.org's overall score has declined by 3 points (from 88 to 85) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card