eloquentjavascript.net
Eloquent JavaScript
Last scanned Jul 27, 2026, 3:43 PM
Overall score
Fair
Summary
This website uses Nginx hosted on TRANSIP-AS - Signet B.V., NL. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
- Netherlands
- Hosted on TRANSIP-AS - Signet B.V., NL
Top issues to fix
11 issues found · 3 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.
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.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+5 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
127 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Meta tags
- Title
- Eloquent JavaScript
- Description
- Canonical
- Language
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- TRANSIP-AS - Signet B.V., NL
- CDN provider
- —
- IP address
- 149.210.142.219
- ASN
- AS20857 (TRANSIP-AS - Signet B.V., NL)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- eloquentjavascript.net
- Valid from
- Jul 21, 2026
- Valid to
- Oct 19, 2026
- Days until expiry
- 84
- SAN domains
- eloquentjavascript.net
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 3 · H3 6
Links
32 internal · 14 external · 0 broken
Images
1 total · 0 missing alt
Scripts / Styles
0 scripts · 1 stylesheets
JS / CSS size
0 B · 7.8 KB
Page size
6.0 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 structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
Scan details
- Requested URL
- https://eloquentjavascript.net
- Final URL
- https://eloquentjavascript.net
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 127 ms
- HTML size
- 6.0 KB
- Redirect chain
- https://eloquentjavascript.net
See something wrong on this report? Request a correction
Related websites
Same technology stack
fas.org
Home - Federation of American Scientists
organon.com
Home | Organon
tec.mx
Inicio | Tecnológico de Monterrey
computerbase.de
ComputerBase
quago.io
Home - Quago
seravo.com
Seravo
Same hosting provider
dailyverses.net
Bible verse of the day - DailyVerses.net
stack.storage
Jouw online Cloudopslag met STACK. Own it / TransIP
stackstorage.com
Jouw online Cloudopslag met STACK. Own it / TransIP
transip.eu
TransIP | Cloud, Virtual Private Servers & Storage
signet.nl
signetbreedband | Dé onafhankelijke netwerkspecialist van Nederland
tbauctions.com
TBAuctions | Europe's Leading B2B Digital Auction Platform - TBAuctions
Frequently asked questions
- What technology does eloquentjavascript.net use?
- eloquentjavascript.net is built with Nginx.
- Is eloquentjavascript.net secure (HTTPS)?
- Yes. eloquentjavascript.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 19, 2026.
- Who hosts eloquentjavascript.net?
- eloquentjavascript.net is hosted on TRANSIP-AS - Signet B.V., NL.
- What is eloquentjavascript.net's SEO score?
- eloquentjavascript.net scored 60/100 for SEO in the latest analysis (fair).
- What is eloquentjavascript.net's overall website score?
- eloquentjavascript.net has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card