BLACKOUT MAP

Internet outage history

Denmark

Operational 20/20 hosts up since Oct 16, 2026 10:00 UTC

Every disruption Blackout Map has recorded in Denmark since monitoring began on October 16, 2026, with reported government shutdowns and submarine cable incidents.

Live status of Denmark RSS feed

North Denmark — Operational · 2/2 hosts upZealand — Operational · 3/3 hosts upCentral Jutland — Operational · 6/6 hosts upCapital — Operational · 9/9 hosts up
Regions right now Operational Degraded Partial outage Blackout Each dot is a state or province we measure separately, coloured by its status now; bigger dots have more hosts. The country is shaded in its overall status.
0incidents recorded
0total disruption
—longest incident
21outages measured since 2022
0reported shutdowns since 2019

Overview

Last 90 days

Worst status per day, last 90 days
Jul 31, 2026 Operational Degraded Partial outage Blackout Not monitored yet Today

Daily reachability

last 30 days
Oct 16Oct 230%50%100%
Hosts uplowest hour

Our probes · hosts reachable

last 72 hours
Oct 26Oct 27Oct 280%50%100%

IODA · routes and active probing, % of normal

last 72 hours
Oct 26Oct 27Oct 280%50%100%
BGP routesActive probingIODA (Georgia Tech)

Latency from our server (Germany)

last 72 hours
Oct 26Oct 27Oct 280 ms25 ms50 ms
Latency25–75%

The same measurements as the live panel, per 30 minutes. Times in UTC.

Incidents

All incidents

our probes and IODA

No disruptions recorded in Denmark since monitoring started on October 16, 2026.

Attacks and context

Context only — they don't change the status above.

DDoS attacks aimed at Denmark · 7 days

Oct 22Oct 23Oct 24Oct 25Oct 26Oct 27Oct 280%50%100%
Network DDoSWeb attacksCloudflare Radar

Per hour; each line is relative to its own busiest hour of the week (100%). Context only — attacks never change a country's status.

Types
SYN Flood 61% · UDP Flood 14% · Mirai (UDP) Flood 11% · SSDP Flood 4%
Duration
77% longer than 1 h · 16% under 20 min
Size
62% under 500 Mbit/s · 2% over 10 Gbit/s
Web attacks from
team.blue Denmark A/S 28% · TDC Holding A/S 15% · Sinal A/S 5%

Routing incidents · 7 days · Cloudflare Radar

0 possible hijacks of networks in Denmark, 3+ route leaks involving it.

Long-term history

Before our monitoring: IODA archive

21 incidents · 6 blackouts · 12 partial outages

Outages in Denmark detected by IODA (Georgia Tech) between January 2022 and the start of our own monitoring: drops in the country's internet routes (BGP) or in its reachability from IODA's active probing, compared with the day before. Each is checked against IODA's signal; small dips are left out.

Started (UTC)DurationWorst levelEvidence
Jun 20, 2026 11:402 hours BlackoutIODA (Georgia Tech): active probing, lowest 29% of normal
May 3, 2026 20:5050 min BlackoutIODA (Georgia Tech): active probing, lowest 37% of normal
Aug 5, 2025 05:006 days Partial outageIODA (Georgia Tech): routes + active probing, lowest 65% of normal
Jul 24, 2025 08:5020 min BlackoutIODA (Georgia Tech): active probing, lowest 10% of normal
Apr 30, 2025 16:3040 min Partial outageIODA (Georgia Tech): active probing, lowest 63% of normal
Mar 29, 2025 10:103 hours BlackoutIODA (Georgia Tech): active probing, lowest 29% of normal
Mar 25, 2025 22:103 hours DegradedIODA (Georgia Tech): active probing, lowest 85% of normal
Mar 25, 2025 20:101 hour DegradedIODA (Georgia Tech): active probing, lowest 80% of normal
Mar 25, 2025 17:4030 min DegradedIODA (Georgia Tech): active probing, lowest 88% of normal
Jul 6, 2024 11:0030 min Partial outageIODA (Georgia Tech): active probing, lowest 74% of normal
Dec 16, 2023 04:3040 min Partial outageIODA (Georgia Tech): active probing, lowest 78% of normal
Nov 19, 2023 12:402 hours BlackoutIODA (Georgia Tech): active probing, lowest 21% of normal
Show all 21
Started (UTC)DurationWorst levelEvidence
Sep 22, 2023 02:306 hours Partial outageIODA (Georgia Tech): active probing, lowest 75% of normal
Sep 5, 2023 23:201 hour Partial outageIODA (Georgia Tech): active probing, lowest 72% of normal
Aug 18, 2023 04:103 hours Partial outageIODA (Georgia Tech): active probing, lowest 78% of normal
Jul 8, 2023 08:0512 days Partial outageIODA (Georgia Tech): routes + active probing, lowest 59% of normal
Jun 23, 2023 09:203 hours Partial outageIODA (Georgia Tech): active probing, lowest 71% of normal
Jun 23, 2023 02:005 hours Partial outageIODA (Georgia Tech): active probing, lowest 71% of normal
Jul 21, 2022 08:2040 min Partial outageIODA (Georgia Tech): active probing, lowest 74% of normal
Jul 20, 2022 10:1010 hours BlackoutIODA (Georgia Tech): active probing, lowest 41% of normal
Apr 19, 2022 03:3030 min Partial outageIODA (Georgia Tech): active probing, lowest 61% of normal

Government shutdowns and blocks

since 2019

The Internet Society Pulse tracker has no recorded government shutdowns or blocks in Denmark since 2019.

Provided by Internet Society.

Submarine cable incidents

No submarine cable incidents recorded for Denmark.

Cable incidents: GeoCables (CC BY 4.0). Context only — they never change a country's status.