stumbleupon.com
Mix — Expand your mind
Last scanned Jul 18, 2026, 8:49 PM
Overall score
Fair
Top issues to fix
10 issues found · 4 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.
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.
+4 more issues — details in the sections below.
Summary
This website uses Next.js hosted on AWS. SEO is fair (60/100) and accessibility is good (80/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
SEO
5 issue(s) found
Performance
258 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Contact
Email, phone, and address published on this site's own pages.
Source: https://stumbleupon.com/contact
Meta tags
- Title
- Mix — Expand your mind
- Description
- Canonical
- https://mix.com
- Language
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0, maximum-scale=5.0, user-scalable=0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- —
- IP address
- 32.194.22.69
- ASN
- AS14618 (AMAZON-AES - Amazon.com, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Amazon
- Subject
- stumbleupon.com
- Valid from
- Apr 28, 2026
- Valid to
- Nov 11, 2026
- Days until expiry
- 116
- SAN domains
- stumbleupon.com, *.stumbleupon.com
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 0 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
17 scripts · 1 stylesheets
JS / CSS size
778 B · 610 B
Page size
4.9 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- No H1 heading found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
- Missing <html lang> attribute
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://stumbleupon.com
- Final URL
- https://stumbleupon.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 258 ms
- HTML size
- 4.9 KB
- Redirect chain
- https://stumbleupon.com
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Frequently asked questions
- What technology does stumbleupon.com use?
- stumbleupon.com is built with Next.js, Google Analytics.
- Is stumbleupon.com secure (HTTPS)?
- Yes. stumbleupon.com uses TLS 1.2 with a certificate issued by Amazon, valid until Nov 11, 2026.
- Who hosts stumbleupon.com?
- stumbleupon.com is hosted on AWS.
- What is stumbleupon.com's SEO score?
- stumbleupon.com scored 60/100 for SEO in the latest analysis (fair).
- What is stumbleupon.com's overall website score?
- stumbleupon.com has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.
- Is stumbleupon.com hiring?
- stumbleupon.com has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card