The domain gitlab.herzog-it.de is registered with an undisclosed registrar. It resolves to IP address patty.herzog-it.de.. Email delivery is handled by Self-hosted or Custom. No valid SPF record was detected. DMARC protection is missing or unconfigured. Web traffic is secured with an SSL certificate issued by Let's Encrypt Authority X3.
Domain Overview: gitlab.herzog-it.de
Expires in N/A · DNSSEC: Unsigned
Self-hosted or Custom (1 MX)
Issuer: Let's Encrypt Authority X3 (1 SANs)
N/A
🌐 Domain & Registration Identity View Full Whois Details →
| Domain | gitlab.herzog-it.de |
|---|---|
| Website Title | |
| Registered | N/A |
| Expires | N/A |
| Remaining Validity | N/A |
| Domain Age | N/A |
| Registrar | N/A |
| Domain Status | N/A |
| DNSSEC Delegation | Unsigned · Zone not signed with DNSSEC keys |
| Authoritative Nameservers |
patty.herzog-it.de
|
🛡️ Email Security & Deliverability (SPF, DKIM, DMARC) View Complete Email Security Diagnostics →
| Detected Email Provider | 📬 Self-hosted or Custom |
|---|---|
| Primary Mail Server (MX) |
patty.herzog-it.de (Priority: patty.herzog-it.de.)
· 1 MX server configured
|
| SPF Record (Sender Policy) | Missing |
| DKIM Authentication | Not Detected · (No common third-party selector found; custom keys may be configured) |
| DMARC Policy | Missing |
| SMTP Port 25 Status | Failed · Inbound mail server handshake response |
🖥️ Web Server, Hosting & Network View Full Server & Tech Details →
| Web Server Software | N/A |
|---|---|
| HTTP Status Code | N/A |
| Server IP (IPv4) | patty.herzog-it.de. View Geo Details → |
| IPv6 Address (AAAA) | patty.herzog-it.de. |
| Reverse DNS (PTR) |
None Detected (No PTR Record)
|
| Server Location | 📍 N/A |
| ASN Network & ISP | N/A |
| Hosting Provider | N/A |
| Control Panel | Not Detected |
| Technology Stack | No third-party framework or CMS fingerprints detected |
| HTTP Security Headers | None Detected (Missing HSTS / CSP) Audit Details → |
| DNSBL Blacklist Reputation | Not Checked |
🔒 SSL/TLS Certificate Summary View Full SSL Certificate & Chain →
| Primary Hostname (CN) | gitlab.herzog-it.de · Multi-Domain SAN (Covers 1 hostnames) |
|---|---|
| SSL Issuer | Let's Encrypt Authority X3 |
| SSL Valid Till | 2019-03-04 |
| Remaining Validity | -2776 Days |
| Chain Status | Valid Trusted Chain |
| Signature Algorithm | RSA-SHA256 |
Whois Ownership & Registration for gitlab.herzog-it.de
📄 View Raw Registry Response ↓Domain Information
Registrar Information
Registrant Contact
Contact information for this role is not provided or redacted.
Administrative Contact
Contact information for this role is not provided or redacted.
Technical Contact
Contact information for this role is not provided or redacted.
📄 View Raw Registry Response Legacy Whois (Port 43)
Domain: herzog-it.de Status: connect
DNS Records for gitlab.herzog-it.de
NS Records
| Name | Data | Copy |
|---|---|---|
| gitlab.herzog-it.de. | patty.herzog-it.de. |
A Records
| Name | Data | Copy |
|---|---|---|
| gitlab.herzog-it.de. | patty.herzog-it.de. |
|
| patty.herzog-it.de. | 91.250.112.170 |
AAAA Records
| Name | Data | Copy |
|---|---|---|
| gitlab.herzog-it.de. | patty.herzog-it.de. |
WWW Records (www.gitlab.herzog-it.de)
No CNAME or A records found for the 'www' subdomain.
MX Records
| Priority | Mail Server Target | Copy |
|---|---|---|
| patty.herzog-it.de. | |
TXT Records
| Name | Value | Copy |
|---|---|---|
| gitlab.herzog-it.de. | patty.herzog-it.de. |
Email Security (MX, SPF, DKIM, DMARC, SMTP) for gitlab.herzog-it.de
Mail Exchange (MX) Routing Records
SPF Record Validation
No SPF record found to validate.
Common DKIM Selectors
No common third-party DKIM selectors found. Custom selectors may be configured.
🔍 Query Custom DKIM Selector
Live DNS Lookup
Using a custom or date-based selector (e.g. crm, newsletter, 2024)? Query its public key live on gitlab.herzog-it.de:
DMARC Policy Validation
No DMARC record found to validate.
Validation Summary
| DMARC Record Published | Fail No DMARC record was found. |
Optimization Suggestions
A DMARC record is essential for email security. It tells receiving servers what to do with emails that fail SPF and DKIM checks, protecting your domain from spoofing.
SMTP Connectivity Test (Port 25)
| Mail Server | Status | Latency | Banner / Handshake Response |
|---|---|---|---|
| patty.herzog-it.de | Failed | 138ms | Connection failed (111: Connection refused). Port 25 may be blocked. |
SSL/TLS Certificate Details for gitlab.herzog-it.de
- Issuer: Let's Encrypt Authority X3
- Expires In: -2776 Days
- Chain Status: Valid Chain
Main Leaf Certificate
- Common Name:
gitlab.herzog-it.de - SANs: DNS:gitlab.herzog-it.de
- Organization: N/A
- Validity: Dec 04, 2018 to Mar 04, 2019
- Algorithm: RSA-SHA256
- Common Name: Let's Encrypt Authority X3
- Organization: Let's Encrypt
- Valid Till: Mar 17, 2021
- Issuer: DST Root CA X3
Website & Server Intelligence for gitlab.herzog-it.de
Website Identity
| Title | |
|---|---|
| Meta Description | N/A |
Hosting & Server Network
| IP Address | patty.herzog-it.de. |
|---|---|
| HTTP Status | N/A |
| Hosting Provider | N/A |
| Web Server | N/A |
| Control Panel | Not Detected |
Technology Profile
No specific third-party frameworks or CMS fingerprints detected.
HTTP Security Headers
Could not fetch HTTP headers.
IP Details & Geolocation
Could not retrieve detailed IP information.
Understanding Diagnostic Terms for gitlab.herzog-it.de
Domain Status (EPP)
EPP status codes (e.g., clientTransferProhibited, active) indicating if a domain is locked against unauthorized transfer, pending renewal, or active.
Registrar Information
The authorized or accredited organization managing the domain reservation and authoritative registry delegation.
Nameservers (NS)
Authoritative servers that translate domain names into IP addresses and direct web visitors and mail traffic globally.
A & AAAA Records
Primary address records mapping your domain name directly to standard IPv4 (e.g., 192.0.2.1) and newer IPv6 server network addresses.
MX (Mail Exchange)
Priority-ranked records pointing inbound emails to designated mail server hosts (e.g., Google Workspace, Microsoft 365, Zoho).
SPF & DMARC Security
Email authentication standards that verify authorized sender IPs (SPF) and instruct receiving servers how to enforce security policies (DMARC).
DKIM Signatures
Cryptographic public key in DNS used by receiving mail servers to verify digital signatures on your emails, ensuring messages were not tampered with.
SSL Certificate & Chain
Establishes encrypted HTTPS connections and authenticates domain ownership via an intermediate certificate authority chain.
Hosting Provider & ASN
The physical server infrastructure where website files reside and the autonomous system network (ASN) routing global traffic.
Reverse DNS (PTR)
Pointer (PTR) records that map a server's IP address back to its canonical hostname, verifying server identity and preventing email spam rejection.
HTTP Security Headers
Directives like HSTS, CSP, and X-Frame-Options instructed by the server to protect browser visitors against XSS, clickjacking, and packet sniffing.
⚠️ Report Limitations & Data Sources
- Data Currency: This report uses cached registry and DNS data (freshened within 4 hours) for high-speed resolution. Click "🔄 Refresh Live" to query directly against authoritative registries.
- DNS Resolution & Propagation: Records are queried via Google Public DNS-over-HTTPS. Global DNS propagation may take up to 24–48 hours across different regional ISP resolvers during recent DNS record changes.
- Completeness & Scope: This diagnostic tool analyzes standard authoritative records (A, AAAA, MX, NS, TXT, CNAME, SOA). It does not perform invasive brute-force subdomain scans or unauthenticated DNS zone transfers.
- Email Deliverability & Reputation: The security analysis (SPF, DKIM, DMARC, and Port 25 SMTP handshake) reflects public DNS policies and inbound connection states. Recipient spam filters evaluate internal headers that cannot be checked from outside.
- Reverse Proxies & CDNs: If a website is behind Cloudflare, Fastly, or another CDN/reverse proxy, the detected IP, web server software, and SSL edge certificate reflect the proxy tier.