🌐
zalando.dev 200
🔒 SSL Valid
✨ About this site
This is a lesser-known site.
📊 What the data says
This React-based site runs on a Mastodon server and holds valid security headers including HSTS and CSP. Registered in 2025, it features an SSL certificate valid until November 2026 and achieves a mobile performance score of 56.
HTTP Status A three-digit code showing if the site loaded successfully (200), redirects (301/302), or has errors (4xx/5xx).Read more →
200
SSL Expires When the SSL certificate expires. An expired certificate causes browser security warnings.Read more →
in 77d
Domain Expires When the domain registration expires. If not renewed, the domain becomes available to others.Read more →
in 104d
Hosting The company and location where this website's server is physically located.Read more →
Unknown
Security Score based on key HTTP security headers: HSTS, Content-Security-Policy, and X-Frame-Options.Read more →
3/3
IP Address The numerical address of the server hosting this website. Reveals location, provider, and network.Read more →
5.75.182.251
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability.
56
mob
Uptime
100%
Performance Lighthouse performance score from Google PageSpeed Insights (0–100). Measures real-world loading speed, interactivity and visual stability. 56
▼
Mobile
Score
Accessibility
Best Practices
SEO
LCP
10.66s
CLS
0.000
FCP
10.35s
TTFB
0.02s
TBT
0ms
SI
10.35s
Checked: 2026-09-05 19:37:32.817905 · View on PageSpeed
Tech Stack Technologies detected on this website: CMS, frameworks, libraries, CDN, and analytics tools. 1
▼
⚡ JS Framework
React
Screenshot
Processing...
▼
⏳
Screenshot is being captured...
DNS Records DNS translates domain names to IP addresses. Records control where the site, email, and services are directed.Read more →
▼
| A (IPv4) | 5.75.182.251 |
| AAAA (IPv6) | 2a01:4f8:c2c:596d::1 |
| NS | dns1.registrar-servers.comdns2.registrar-servers.com |
| MX | 15 eforward4.registrar-servers.com20 eforward5.registrar-servers.com10 eforward1.registrar-servers.com10 eforward2.registrar-servers.com10 eforward3.registrar-servers.com |
| TXT (1) |
v=spf1 include:spf.efwd.registrar-servers.com ~all |
WHOIS / RDAP Public registration data: who registered the domain, when, and when it expires.Read more →
▼
| Registrar | Namecheap Inc. |
| Registered | 2025-01-31 |
| Expires | 2027-01-31 (in 104 days) |
| Last Updated | 2026-01-06 |
| Status | client transfer prohibited |
SSL Certificate Encrypts the connection between browsers and this website. Valid SSL = HTTPS works.Read more → Valid
▼
| Subject (CN) | zalando.dev |
| Issuer | Let's Encrypt |
| Valid From | 2026-10-06 |
| Valid Until | 2027-01-04 (77 days left) |
| SANs (1) | zalando.dev |
HTTP Headers Metadata sent by the server: reveals software, caching rules, and security configuration.Read more →
▼
| Status | 200 |
| Server | Mastodon |
| Content-Type | text/html; charset=utf-8 |
| Final URL | https://zalando.dev/ |
| strict-transport-security | max-age=63072000; includeSubDomains |
| content-security-policy | base-uri 'none'; default-src 'none'; frame-ancestors 'none'; font-src 'self' https://zalando.dev; img-src 'self' data: blob: https://zalando.dev https://zalando.dev/system/; media-src 'self' data: https://zalando.dev https://zalando.dev/system/; manifest-src 'self' https://zalando.dev; form-action 'none'; child-src 'self' blob: https://zalando.dev; worker-src 'self' blob: https://zalando.dev; connect-src 'self' data: blob: https://zalando.dev https://zalando.dev/system/ wss://zalando.dev; frame-src 'self' https:; style-src 'self' https://zalando.dev 'nonce-76GZETeTZSIsn0yM3xUMaA=='; script-src 'self' https://zalando.dev 'wasm-unsafe-eval' 'sha256-OgOg5CGI7D4Syg38sNIknJKO+3DCTdpfY1ciC+Bklaw=' |
| x-frame-options | DENY |
| x-content-type-options | nosniff |
| referrer-policy | strict-origin-when-cross-origin |
| cache-control | max-age=15, public, stale-while-revalidate=30, stale-if-error=86400 |
Security headers HTTP headers that protect visitors from attacks. HSTS forces HTTPS, CSP controls resource loading, X-Frame-Options prevents clickjacking.Read more →
Hosting Physical infrastructure: where the server is, who operates it, and what network it belongs to.Read more →
▼
| IP Address | 5.75.182.251 |
| Provider | Unknown |
| Organization | N/A |
| ASN | N/A |
| Location | N/A |
Security Score
A (6/7)
▼
Sitemap & Robots
▼
Open to search engines
This site's robots.txt lets crawlers access its main content. Search engines can index it normally.
🤖
AI crawlers restricted
— GPTBot
Areas hidden from crawlers:
Entire site
1
API & endpoints
1
Other paths
2
Show raw disallow rules (4)
/
/media_proxy/
/interact/
/api/v1/instance/domain_blocks
| Sitemap | Not found |
Social & Meta Tags
Complete
▼
| Title | Mastodon |
| Description | Das soziale Netzwerk der Zukunft: Keine Werbung, keine Überwachung durch Unternehmen – dafür dezentral und mit Anstand! Behalte mit Mastodon die Kontrolle über deine Daten! |
| OG Title | Mastodon |
| OG Description | Das soziale Netzwerk der Zukunft: Keine Werbung, keine Überwachung durch Unternehmen – dafür dezentral und mit Anstand! Behalte mit Mastodon die Kontrolle über deine Daten! |
| OG Image | https://zalando.dev/packs/assets/preview-vSUsFXid.png |
| OG Type | website |
| OG Site Name | Mastodon, eingerichtet auf zalando.dev |
| Twitter Card | summary_large_image |
| Language | de |
Mail Security Email authentication records (SPF & DMARC) that prevent spoofing and phishing from this domain.Read more →
▼
| SPF | ✓ Present v=spf1 include:spf.efwd.registrar-servers.com ~all |
| DMARC | Not set |
| MX Records | 15 → eforward4.registrar-servers.com 20 → eforward5.registrar-servers.com 10 → eforward1.registrar-servers.com 10 → eforward2.registrar-servers.com 10 → eforward3.registrar-servers.com |
Other TLDs Other top-level domain variants of this domain name and their availability. 21 active 1 for sale 1 available
▼
Uptime Monitor
▼
| Current Status | 🟢 Online |
| HTTP Status | 200 |
| Response Time | 401ms |
| Last Checked | 2026-10-18 11:46:09.939353 |
| Uptime (30d) | 100% |