dualstack.twimg.twitter.map.fastly.net
Last scanned Jul 23, 2026, 12:53 PM
Overall score
Fair
Summary
This website is hosted on Fastly. SEO is poor (35/100) and accessibility is good (75/100). Security scores poor (25/100) and performance excellent (100/100). Top issue: Missing <title>.
- United States
- Hosted on Fastly
Top issues to fix
14 issues found · 6 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 title tag
SEOAdd a unique, descriptive <title> tag — it's the single most important on-page SEO element.
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 viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
+8 more issues — details in the sections below.
SEO
8 issue(s) found
Performance
136 ms
Security
HTTPS & header checks
Accessibility
3 issue(s) found
Meta tags
- Title
- Description
- Canonical
- Language
- Charset
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- Fastly
- CDN provider
- —
- IP address
- 151.101.104.159
- ASN
- AS54113 (FASTLY - Fastly, Inc., US)
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
- *.twimg.com
- Valid from
- Jun 17, 2026
- Valid to
- Sep 15, 2026
- Days until expiry
- 54
- SAN domains
- *.twimg.com, cdn.syndication.twimg.com, platform.twitter.com, twimg.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 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
0 scripts · 0 stylesheets
JS / CSS size
0 B · 0 B
Page size
291 B
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing <title>
- 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
- No H1 heading found
- Missing <html lang> attribute
- Missing viewport meta tag
Scan details
- Requested URL
- https://dualstack.twimg.twitter.map.fastly.net
- Final URL
- https://dualstack.twimg.twitter.map.fastly.net
- HTTP status
- 421
- HTTP version
- HTTP/2
- Response time
- 136 ms
- HTML size
- 291 B
- Redirect chain
- https://dualstack.twimg.twitter.map.fastly.net
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does dualstack.twimg.twitter.map.fastly.net use?
- We did not detect any specific technologies for dualstack.twimg.twitter.map.fastly.net in the latest scan.
- Is dualstack.twimg.twitter.map.fastly.net secure (HTTPS)?
- Yes. dualstack.twimg.twitter.map.fastly.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 15, 2026.
- Who hosts dualstack.twimg.twitter.map.fastly.net?
- dualstack.twimg.twitter.map.fastly.net is hosted on Fastly.
- What is dualstack.twimg.twitter.map.fastly.net's SEO score?
- dualstack.twimg.twitter.map.fastly.net scored 35/100 for SEO in the latest analysis (poor).
- What is dualstack.twimg.twitter.map.fastly.net's overall website score?
- dualstack.twimg.twitter.map.fastly.net has an overall SiteGraph score of 57/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card