t-online.de
is an active domain
Related pages
Explore similar reports and related email checks for t-online.de.
Email deliverability checks
Overview
t-online.de is currently active and operational. This domain has working DNS records and responds to HTTP/HTTPS requests. The domain is properly configured and accessible on the internet.
This report focuses on signals that affect crawlability and visibility in Google: DNS configuration, HTTP/HTTPS availability, SSL/TLS, security headers, and technical SEO checks.
How to read DNS, MX, NS
A records show where the site is hosted. Multiple A records can mean load-balancing or CDNs. MX records indicate which mail servers accept mail for the domain; missing MX often blocks inbound email. NS records list authoritative nameservers — mismatches or slow NS can cause resolution errors.
SSL/TLS interpretation
The SSL issuer and validity period show whether browsers will trust the site. Expired or self-signed certs trigger warnings. If HTTP responds but HTTPS fails, redirect traffic to HTTPS and renew certificates (Let's Encrypt or commercial CA) to avoid SEO and security penalties.
Email security (SPF/DMARC/DKIM)
SPF lists IPs/hosts allowed to send mail for the domain. DMARC enforces how receivers treat mail that fails SPF/DKIM and where to send reports. Missing or relaxed DMARC makes phishing easier. Align SPF/DKIM with your sending services and move DMARC to quarantine or reject once passes are confirmed.
HTTP status & crawlability
Stable 200/301 responses indicate healthy routing. 4xx/5xx codes block indexing and often signal outages or firewall blocks. Ensure redirects are single-hop, set canonical tags, and keep robots meta/tag rules consistent with your indexing goals.
Frequently Asked Questions
What does domain status mean?
Domain status indicates the current operational state. Active means the domain is working and accessible. Inactive means the domain is registered but not responding. Deleted means the domain appears unregistered or expired.
Why should I check domain information?
Checking domain information helps verify ownership, track expiration dates, identify security issues, and ensure proper DNS configuration. This is essential for webmasters, security teams, and domain investors.
How can I use this information?
Use this data to verify domain configuration, check SSL certificate validity, monitor email security settings, and research domain history before making decisions about domain management or investment.
Domain Information
- Flagged on
- Dec 29, 2025 (1 month ago)
- A Records
-
- 54.217.253.146
- 52.209.116.123
- 34.246.241.220
- MX Records
-
- mx03.t-online.de. (priority: 10)
- mx02.t-online.de. (priority: 10)
- mx01.t-online.de. (priority: 10)
- mx00.t-online.de. (priority: 10)
- Nameservers
-
- dns00.dns.t-ipnet.de
- dns02.dns.t-ipnet.de
- pns.dtag.de
- dns50.dns.t-ipnet.de
- dns20.dns.t-ipnet.de
Google / Technical SEO
- Title
- News & E-Mail bei t-online | Politik, Sport, Unterhaltung & Ratgeber 68 chars
- Meta Description
- Aktuelle News aus Politik, Sport, Unterhaltung, Wirtschaft & Finanzen | Ratgeber Leben, Gesundheit und Heim & Garten | E-Mail und Shopping bei t-online. 152 chars
- Canonical
- Present - https://www.t-online.de/
- Robots Meta
- max-snippet:-1, max-image-preview:large, max-video-preview:-1
- H1
- 1 (optimal)
- Structured Data (JSON-LD)
- Unknown
- Mobile Viewport
- Present
Top Recommendations
- Medium Title tag is too long (68 characters). Recommended: 30-60 characters.
- Medium 44 images without alt attributes.
Network / Hosting
- HTTP Status
- 200
- Server
- envoy
- IP Addresses
-
54.217.253.146 52.209.116.123 34.246.241.220
Security / SSL
- SSL Issuer
- Not available
- Valid From
- Not available
- Valid To
- Not available
HTTP Security Headers
- HTTP Version
- HTTP/1.1
- X-Frame-Options
- Not Found
- X-Content-Type-Options
- Not Found
- Strict-Transport-Security (HSTS)
- Not Found
- Content-Security-Policy (CSP)
- Not Found
- Referrer-Policy
- Not Found
- X-XSS-Protection
- Not Found
Cookies Privacy & Security
- Cookies
- No cookies detected
Technical SEO Analysis
- Title Tag
-
68 characters
News & E-Mail bei t-online | Politik, Sport, Unterhaltung & Ratgeber
- Meta Description
-
152 characters
Aktuelle News aus Politik, Sport, Unterhaltung, Wirtschaft & Finanzen | Ratgeber Leben, Gesundheit und Heim & Garten | E-Mail und Shopping bei t-online.
- H1 Headings
- 1 found
- Canonical URL
-
Found
https://www.t-online.de/
- Viewport Meta
- Found
- Charset
- Found
- Language Attribute
- de
- Images Alt Attributes
- 266/310 with alt
- Page Size
- 1331.76 KB
Improvement Recommendations
Title tag is too long (68 characters). Recommended: 30-60 characters.
Shorten the title tag to 30-60 characters so it displays fully in search results
44 images without alt attributes.
Add alt attributes to all images to improve accessibility and SEO
Important: The recommendations provided are general advice for improving Technical SEO and are not a call to action. Every site is unique, and some recommendations may not be suitable for your specific case. Always consult with an SEO specialist before making significant changes.
Email Security
- SPF Record
- Found
- DMARC Record
- Found
- DKIM Record
- Not Found
- MX Records
- Found
- MTA-STS
- Found
- TLS-RPT
- Found
- BIMI
- Not Found
Quick Status
Domain Status
Active
HTTP Status
200
Topical Similarity and Theme Detection
?Important Notice
This domain analysis is provided for informational purposes only. Domain information may change at any time, and we cannot guarantee the accuracy or completeness of the data presented. Always verify critical information with your domain registrar or hosting provider. This service does not provide legal advice or guarantee domain availability.