doi.org
Home Page
Last scanned Jul 29, 2026, 11:00 AM · 22 views
Overall score
Fair
Summary
This website uses jQuery behind CloudFront CDN. SEO is fair (50/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
Top issues to fix
13 issues found · 5 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
+7 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
17 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Score history
+2 overall since Jul 15, 2026
- Overall
- 68
- SEO
- 50
- Security
- 65
- Performance
- 100
- Accessibility
- 60
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- info@doi.org
Meta tags
- Title
- Home Page
- Description
- Canonical
- Language
- en-us
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- CloudFront
- 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
- Amazon
- Subject
- doi.org
- Valid from
- Sep 17, 2025
- Valid to
- Oct 16, 2026
- Days until expiry
- 79
- SAN domains
- doi.org, doi.info, *.doi.org, *.doi.info
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 0 · H2 5 · H3 0
Links
16 internal · 4 external · 20 broken
Images
5 total · 5 missing alt
Scripts / Styles
6 scripts · 5 stylesheets
JS / CSS size
10.4 KB · 0 B
Page size
24.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
- No H1 heading found
Scan details
- Requested URL
- https://doi.org
- Final URL
- https://www.doi.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 17 ms
- HTML size
- 24.5 KB
- Redirect chain
- https://doi.org → https://www.doi.org/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does doi.org use?
- doi.org is built with Bootstrap, jQuery.
- Is doi.org secure (HTTPS)?
- Yes. doi.org uses TLS 1.3 with a certificate issued by Amazon, valid until Oct 16, 2026.
- Who hosts doi.org?
- Hosting provider information for doi.org is not available yet.
- What is doi.org's SEO score?
- doi.org scored 50/100 for SEO in the latest analysis (fair).
- What is doi.org's overall website score?
- doi.org has an overall SiteGraph score of 68/100, combining SEO, performance, security, and accessibility.
- Has doi.org's score changed over time?
- doi.org's overall score has improved by 2 points (from 66 to 68) since Jul 15, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card