• Is Loc Down?

    Vertical Posture all 9 monitoring signals for loc.gov
    9 verticals
    Vertical Status UP DOWN UNC UNK Total
    NTP ntp_servers NONE 0 0 0 0 0 Add
    DNS dns_servers NONE 0 0 0 0 0 Add
    VPN vpn_servers NONE 0 0 0 0 0 Add
    SMTP smtp_servers NONE 0 0 0 0 0 Add
    HTTP http_servers NONE 0 0 0 0 0 Add
    SSH ssh_servers NONE 0 0 0 0 0 Add
    WHOIS whois_lookups NONE 0 0 0 0 0 Add
    CT ct_certificates NONE 0 0 0 0 0 Add
    Tor tor_relays NONE 0 0 0 0 0 Add
    Overall NO DATA 0 0 0 0 0
    UNCERTAIN means a data source (crt.sh, whois.iana.org, etc.) was temporarily unavailable. We'll retry on the next cron cycle. DOWN means we have data and the target is unreachable. View all UNCERTAIN across MTI

    Loc is actually 👍 UP 100.0% confident

    Date & Time now is 2026-06-04 04:14:38 UTC | Last MTI check: 13 minutes ago
    Report An Issue with Loc
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    Uptime Monitor

    Live status updates gathered from our automated uptime checks.

    Uptime Status Up
    Last Checked Sun, May 31, 2026 1:50 AM
    Last Status Change Sat, May 30, 2026 11:16 PM
    Check Interval 5 minutes
    Consecutive Failures 0
    Last Failure Event N/A
    Certificate Status Valid
    Certificate Expires Tue, Aug 25, 2026 12:31 PM

    Historical Checks

    No historical uptime checks are available yet.

    Latest Health Insights

    DNS Health

    UNKNOWN
    Records

    No DNS records detected.

    DNSSEC: Unknown

    Security Headers

    UNKNOWN
    Missing Headers

    All required headers detected.

    Present Headers

    No headers captured for this check.

    SLA Summary

    UNKNOWN
    Period Uptime Checks
    No SLA data available.

    What is the Loc Organization?

     LOC (The Library of Congress) is the research library that officially serves the United States Congress and is the de facto national library of the United States. The Library of Congress is the second largest library in the world and the oldest federal cultural institution in the United States. The library is based in three buildings on Capitol Hill in Washington D.C. and also maintains the National Audio-Visual Conservation Center in Virginia.

    Is Loc down for you right now?

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    MTI Verification Details

    2
    Checks Passed
    0
    Checks Failed
    2
    Methods Run
    Method Status Details
    curl_http PASSED HTTP 200 in 528ms
    tcp_connect PASSED TCP loc.gov:443 OK in 17ms
    Company Domain Name HTTP Status Check
    Loc
    Active

    Recent Uptime Checks

    Check Time Status Response Time DNS Lookup TTFB Size
    👍 UP 200 528 ms N/A N/A N/A
    👍 UP 17 ms N/A N/A N/A
    👍 UP N/A N/A N/A N/A

    Verification Method Results

    Failure Reasons: None