D21
is
▲ UP
100.0% confident
Last check: 2 weeks ago
·
Jun 28, 2026 14:33 UTC
MTI Verification Status
Live status from our automated multi-method verification engine.
| Overall Status | UP |
|---|---|
| Last Checked | Wed, Jun 10, 2026 4:43 AM |
| Confidence | 100.0% |
| Checks Passed | 2 |
| Checks Failed | 1 |
| Methods Run | 3 |
| SSL Grade | B |
| SSL Expires | 63 days |
Check Results
2
Checks Passed
1
Checks Failed
3
Methods Run
Latest Method Results
HTTP Check
FAILED
Connection failed: cURL error 7: Failed to connect to 127.0.0.1 port 1 after 0 ms: Connection refused (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://127.0.0.1:1/
217ms
SSL/TLS Handshake
PASSED
SSL OK (B) in 55ms
B · 63d
IP: 172.67.201.22
55ms
TCP Connection
PASSED
TCP d21.team:443 OK in 20ms
IP: 104.21.60.200
20ms
Historical Checks
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MTI Verification Details
| Method | Status | Details |
|---|---|---|
curl_http |
FAILED | Connection failed: cURL error 7: Failed to connect to 127.0.0.1 port 1 after 0 ms: Connection refused (see https://curl.haxx.se/libcurl/c/libcurl-errors.html) for https://127.0.0.1:1/ |
tcp_connect |
PASSED | TCP d21.team:443 OK in 20ms |
ssl_handshake |
PASSED | SSL OK (B) in 55ms |
Company Details
| Company | D21 |
|---|---|
| Domain | d21.team |
| Type | Unknown |
| Monitored | Not Monitored |
Recent Uptime Checks
| Check Time | Status | Response | Method | Output |
|---|---|---|---|---|
| Jun 09 06:34:40 | DOWN | 217ms | curl_http | Connection failed: cURL error 7: Failed to connect... |
| Jun 09 06:34:42 | UP | 60ms | ssl_handshake | SSL OK (B) in 60ms |
| Jun 09 06:34:42 | UP | 23ms | tcp_connect | TCP d21.team:443 OK in 23ms |
| Jun 09 06:34:42 | UP | N/A | verification_summary | N/A |
| Jun 10 04:43:27 | DOWN | 217ms | curl_http | Connection failed: cURL error 7: Failed to connect... |
| Jun 10 04:43:27 | UP | 55ms | ssl_handshake | SSL OK (B) in 55ms |
| Jun 10 04:43:27 | UP | 20ms | tcp_connect | TCP d21.team:443 OK in 20ms |
| Jun 10 04:43:27 | UP | N/A | verification_summary | N/A |
Verticals Health
| Signal | Status | UP | DOWN | UNC | UNK | Total | |
|---|---|---|---|---|---|---|---|
| NTP ntp_servers | NONE | 0 | 0 | 0 | 0 | 0 | |
| DNS dns_servers | NONE | 0 | 0 | 0 | 0 | 0 | |
| VPN vpn_servers | NONE | 0 | 0 | 0 | 0 | 0 | |
| SMTP smtp_servers | NONE | 0 | 0 | 0 | 0 | 0 | |
| HTTP http_servers | NONE | 0 | 0 | 0 | 0 | 0 | |
| SSH ssh_servers | NONE | 0 | 0 | 0 | 0 | 0 | |
| WHOIS whois_lookups | NONE | 0 | 0 | 0 | 0 | 0 | |
| CT ct_certificates | NONE | 0 | 0 | 0 | 0 | 0 | |
| Tor tor_relays | N/A | 0 | 0 | 0 | 0 | 0 | |
| Overall | NO DATA | 0 | 0 | 0 | 0 | 0 | |
NTP
ntp_servers
NONE
0UP
0DN
0UN
0UK
0Σ
View NTP
DNS
dns_servers
NONE
0UP
0DN
0UN
0UK
0Σ
View DNS
VPN
vpn_servers
NONE
0UP
0DN
0UN
0UK
0Σ
View VPN
SMTP
smtp_servers
NONE
0UP
0DN
0UN
0UK
0Σ
View SMTP
HTTP
http_servers
NONE
0UP
0DN
0UN
0UK
0Σ
View HTTP
SSH
ssh_servers
NONE
0UP
0DN
0UN
0UK
0Σ
View SSH
WHOIS
whois_lookups
NONE
0UP
0DN
0UN
0UK
0Σ
View WHOIS
CT
ct_certificates
NONE
0UP
0DN
0UN
0UK
0Σ
View CT
Tor
tor_relays
N/A
0UP
0DN
0UN
0UK
0Σ
View Tor
Overall
all 9 verticals
NO DATA
0UP
0DN
0UN
0UK
0Σ
UNCERTAIN = data source temporarily unavailable. DOWN = target unreachable.