Monitor status
Up (200)
Classifies uptime checks into operational, blocked, timeout, SSL, DNS, and other categories.
Response time
595ms
TTFB
565ms
Uptime (48h)
N/A%
Avg response
N/Ams
Time to First Byte
0.565s
How long it took the website to start responding.
Full Load Time
0.595s
Total transfer time for the checked endpoint.
Caching
s-maxage=300, stale-while-revalidate=31535700
Cache policy discovered in headers.
Security Headers
4/6 present
Recommended response security headers.
SSL/TLS
Valid: 42 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?
Security & SSL
Security headers
HeaderStatus
Content-Security-Policy
Present
Strict-Transport-Security
Present
X-Frame-Options
Present
X-Content-Type-Options
Present
Referrer-Policy
Missing
Permissions-Policy
Missing
SSL certificate
Status
Valid
Days until expiry42
IssuerYE1
Subjectwww.anthropic.com
ProtocolHTTP/1.x
Network & connection
DNS lookup0 ms · OK
TCP connect8 ms · OK
Redirects0 hop(s)
Final URLhttps://www.anthropic.com/
Compressiongzip
Cache-Controls-maxage=300, stale-while-revalidate=31535700
Content & SEO
Page titleHome \ Anthropic
HTML size211.4 KB
Canonicalhttps://www.anthropic.com
Robots metaNot set
Recent history
Last 10 results.
Time
State
HTTP
Response
TTFB
23rd Oct 2026 at 2:10 am
UP
200
595 ms
565 ms
23rd Oct 2026 at 2:05 am
UP
200
518 ms
494 ms
23rd Oct 2026 at 2:00 am
UP
200
378 ms
369 ms
23rd Oct 2026 at 1:55 am
UP
200
701 ms
670 ms
23rd Oct 2026 at 1:49 am
UP
200
343 ms
325 ms
23rd Oct 2026 at 1:44 am
UP
200
348 ms
327 ms
23rd Oct 2026 at 1:38 am
UP
200
524 ms
496 ms
23rd Oct 2026 at 1:33 am
UP
200
403 ms
353 ms
23rd Oct 2026 at 1:28 am
UP
200
548 ms
511 ms
23rd Oct 2026 at 1:23 am
UP
200
608 ms
566 ms
Raw payload
{
"cache_control": "s-maxage=300, stale-while-revalidate=31535700",
"canonical": "https://www.anthropic.com",
"compression": "gzip",
"content_keyword_ok": null,
"dns_ok": true,
"dns_time_sec": 0.0,
"etag": null,
"final_url": "https://www.anthropic.com/",
"hsts_present": true,
"monitor_status": "UP",
"monitor_url": "https://www.anthropic.com/",
"page_size_bytes": 216501,
"redirects": [],
"request_method": "GET",
"robots_meta": null,
"security_headers": {
"Content-Security-Policy": true,
"Permissions-Policy": false,
"Referrer-Policy": false,
"Strict-Transport-Security": true,
"X-Content-Type-Options": true,
"X-Frame-Options": true
},
"ssl": {
"alpn": null,
"ssl_days_until_expiry": 42,
"ssl_expires_on": "04 Dec 2026",
"ssl_issuer_cn": "YE1",
"ssl_subject_cn": "www.anthropic.com",
"ssl_valid": true,
"ssl_valid_from": "05 Sep 2026"
},
"status": 200,
"tcp_connect_time_sec": 0.008,
"tcp_ok": true,
"title": "Home \\ Anthropic",
"total_time_sec": 0.595,
"ttfb_sec": 0.565
}