Monitor status
Up (200)
Classifies uptime checks into operational, blocked, timeout, SSL, DNS, and other categories.
Response time
330ms
TTFB
278ms
Uptime (48h)
100.0%
Avg response
421ms
Time to First Byte
0.278s
How long it took the website to start responding.
Full Load Time
0.33s
Total transfer time for the checked endpoint.
Caching
Max-age 0s
Cache policy discovered in headers.
Security Headers
5/6 present
Recommended response security headers.
SSL/TLS
Valid: 45 days left
Certificate validity and expiry details.
SEO snapshot
Run a one-off audit to start tracking SEO health alongside uptime. What does this score mean?
No SEO data yet
Audits cover meta tags, headings, social previews, structured data, and technical signals. Each run is saved so you can watch the trend.
Trends
Performance and uptime over the last 48 hours. What is TTFB?
Performance
Response time over 523 checks in the last 48 hours.
Average
421 ms
Fastest
146 ms
Slowest
2060 ms
P95
751 ms
Security & SSL
Security headers
HeaderStatus
Content-Security-Policy
Present
Strict-Transport-Security
Present
X-Frame-Options
Present
X-Content-Type-Options
Present
Referrer-Policy
Present
Permissions-Policy
Missing
SSL certificate
Status
Valid
Days until expiry45
IssuerSectigo Public Server Authentication CA DV E36
Subjectgithub.com
ProtocolHTTP/1.x
Network & connection
DNS lookup3 ms · OK
TCP connect2 ms · OK
Redirects0 hop(s)
Final URLhttps://github.com/
Compressiongzip
Cache-Controlmax-age=0, private, must-revalidate
Content & SEO
Page titleGitHub · Change is constant. GitHub keeps you ahead. · GitHub · GitHub
HTML size559.1 KB
Canonicalhttps://github.com
Robots metaNot set
Recent history
Last 10 results.
Time
State
HTTP
Response
TTFB
15th Oct 2026 at 9:01 pm
UP
200
330 ms
278 ms
15th Oct 2026 at 8:55 pm
UP
200
350 ms
330 ms
15th Oct 2026 at 8:49 pm
UP
200
375 ms
353 ms
15th Oct 2026 at 8:44 pm
UP
200
523 ms
503 ms
15th Oct 2026 at 8:38 pm
UP
200
289 ms
243 ms
15th Oct 2026 at 8:32 pm
UP
200
296 ms
274 ms
15th Oct 2026 at 8:27 pm
UP
200
403 ms
362 ms
15th Oct 2026 at 8:21 pm
UP
200
292 ms
279 ms
15th Oct 2026 at 8:16 pm
UP
200
406 ms
367 ms
15th Oct 2026 at 8:11 pm
UP
200
408 ms
389 ms
Raw payload
{
"cache_control": "max-age=0, private, must-revalidate",
"canonical": "https://github.com",
"compression": "gzip",
"content_keyword_ok": null,
"dns_ok": true,
"dns_time_sec": 0.003,
"etag": "W/\"d9d604bbfd1d321d9b3781c16c3e8b95\"",
"final_url": "https://github.com/",
"hsts_present": true,
"monitor_status": "UP",
"monitor_url": "https://github.com/",
"page_size_bytes": 572488,
"redirects": [],
"request_method": "GET",
"robots_meta": null,
"security_headers": {
"Content-Security-Policy": true,
"Permissions-Policy": false,
"Referrer-Policy": true,
"Strict-Transport-Security": true,
"X-Content-Type-Options": true,
"X-Frame-Options": true
},
"ssl": {
"alpn": null,
"ssl_days_until_expiry": 45,
"ssl_expires_on": "29 Nov 2026",
"ssl_issuer_cn": "Sectigo Public Server Authentication CA DV E36",
"ssl_subject_cn": "github.com",
"ssl_valid": true,
"ssl_valid_from": "01 Sep 2026"
},
"status": 200,
"tcp_connect_time_sec": 0.002,
"tcp_ok": true,
"title": "GitHub \u00b7 Change is constant. GitHub keeps you ahead. \u00b7 GitHub \u00b7 GitHub",
"total_time_sec": 0.33,
"ttfb_sec": 0.278
}