Monitor status
Up (200)
Classifies uptime checks into operational, blocked, timeout, SSL, DNS, and other categories.
Response time
358ms
TTFB
355ms
Uptime (48h)
100.0%
Avg response
478ms
Time to First Byte
0.355s
How long it took the website to start responding.
Full Load Time
0.358s
Total transfer time for the checked endpoint.
Caching
Max-age 0s
Cache policy discovered in headers.
Security Headers
3/6 present
Recommended response security headers.
SSL/TLS
Valid: 60 days left
Certificate validity and expiry details.
SEO snapshot
Latest score and how it has changed over time. What does this score mean?
86/ 100
Trends
Performance and uptime over the last 48 hours. What is TTFB?
Performance
Response time over 519 checks in the last 48 hours.
Average
478 ms
Fastest
301 ms
Slowest
1460 ms
P95
857 ms
Security & SSL
Security headers
HeaderStatus
Content-Security-Policy
Present
Strict-Transport-Security
Present
X-Frame-Options
Missing
X-Content-Type-Options
Present
Referrer-Policy
Missing
Permissions-Policy
Missing
SSL certificate
Status
Valid
Days until expiry60
IssuerYE2
Subjectopenai.com
ProtocolHTTP/1.x
Network & connection
DNS lookup10 ms · OK
TCP connect26 ms · OK
Redirects0 hop(s)
Final URLhttps://openai.com/
Compressiongzip
Cache-Controlpublic, max-age=0, must-revalidate
Content & SEO
Page titleOpenAI | Research & Deployment
HTML size439.8 KB
Canonicalhttps://openai.com/
Robots metaindex, follow
Recent history
Last 10 results.
Time
State
HTTP
Response
TTFB
9th Sep 2026 at 4:42 am
UP
200
358 ms
355 ms
9th Sep 2026 at 4:36 am
UP
200
352 ms
340 ms
9th Sep 2026 at 4:30 am
UP
200
635 ms
484 ms
9th Sep 2026 at 4:25 am
UP
200
352 ms
331 ms
9th Sep 2026 at 4:20 am
UP
200
448 ms
438 ms
9th Sep 2026 at 4:14 am
UP
200
375 ms
355 ms
9th Sep 2026 at 4:08 am
UP
200
383 ms
368 ms
9th Sep 2026 at 4:02 am
UP
200
524 ms
359 ms
9th Sep 2026 at 3:57 am
UP
200
337 ms
330 ms
9th Sep 2026 at 3:52 am
UP
200
505 ms
495 ms
Raw payload
{
"cache_control": "public, max-age=0, must-revalidate",
"canonical": "https://openai.com/",
"compression": "gzip",
"content_keyword_ok": null,
"dns_ok": true,
"dns_time_sec": 0.01,
"etag": null,
"final_url": "https://openai.com/",
"hsts_present": true,
"monitor_status": "UP",
"monitor_url": "https://openai.com/",
"page_size_bytes": 450400,
"redirects": [],
"request_method": "GET",
"robots_meta": "index, follow",
"security_headers": {
"Content-Security-Policy": true,
"Permissions-Policy": false,
"Referrer-Policy": false,
"Strict-Transport-Security": true,
"X-Content-Type-Options": true,
"X-Frame-Options": false
},
"ssl": {
"alpn": null,
"ssl_days_until_expiry": 60,
"ssl_expires_on": "09 Nov 2026",
"ssl_issuer_cn": "YE2",
"ssl_subject_cn": "openai.com",
"ssl_valid": true,
"ssl_valid_from": "11 Aug 2026"
},
"status": 200,
"tcp_connect_time_sec": 0.026,
"tcp_ok": true,
"title": "OpenAI | Research \u0026 Deployment",
"total_time_sec": 0.358,
"ttfb_sec": 0.355
}