21-school
is
▲ UP
100.0% confident
Last check: 2 weeks ago
·
Jul 21, 2026 17:34 UTC
MTI Verification Status
Live status from our automated multi-method verification engine.
| Overall Status | UP |
|---|---|
| Last Checked | Sat, Jul 4, 2026 4:07 AM |
| Confidence | 100.0% |
| Checks Passed | 2 |
| Checks Failed | 0 |
| Methods Run | 2 |
Check Results
2
Checks Passed
0
Checks Failed
2
Methods Run
Latest Method Results
HTTP Check
PASSED
HTTP 200 in 2255ms
2255ms
TCP Connection
PASSED
TCP 21-school.ru:443 OK in 590ms
IP: 91.221.165.183
590ms
Historical Checks
What is 21-school Organization?
Is 21-school Down for You?
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MTI Verification Details
| Method | Status | Details |
|---|---|---|
curl_http |
PASSED | HTTP 200 in 2255ms |
tcp_connect |
PASSED | TCP 21-school.ru:443 OK in 590ms |
Company Details
| Company | 21-school |
|---|---|
| Domain | 21-school.ru |
| Type | Unknown |
| Monitored | Not Monitored |
Recent Uptime Checks
| Check Time | Status | Response | Method | Output |
|---|---|---|---|---|
| Jun 08 06:40:31 | UP 200 | 2036ms | curl_http | HTTP 200 in 2036ms |
| Jun 08 06:40:31 | UP | 166ms | tcp_connect | TCP 21-school.ru:443 OK in 166ms |
| Jun 08 06:40:32 | UP | N/A | verification_summary | N/A |
| Jun 23 21:52:59 | UP 200 | 2148ms | curl_http | HTTP 200 in 2148ms |
| Jun 23 21:53:00 | UP | 419ms | tcp_connect | TCP 21-school.ru:443 OK in 419ms |
| Jun 23 21:53:01 | UP | N/A | verification_summary | N/A |
| Jul 04 04:07:32 | UP 200 | 2255ms | curl_http | HTTP 200 in 2255ms |
| Jul 04 04:07:33 | UP | 590ms | tcp_connect | TCP 21-school.ru:443 OK in 590ms |
| Jul 04 04:07:33 | 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.