How do I check if a website is down for everyone?

Enter the website URL into the HTTP check tool. Results from 50+ global nodes will show whether the site returns a successful response (HTTP 200) or errors from each location, confirming whether an issue is global or regional. If all nodes report failure, the site is down for everyone.

What is TTFB and why does it matter?

TTFB (Time to First Byte) is the time from when a request is sent to when the first byte of response is received. It reflects server processing time plus network latency. High TTFB from specific regions often means those nodes are bypassing your CDN and hitting the origin server directly, or that your CDN has no edge presence near that region.

Why does my website show different HTTP status codes from different countries?

Different HTTP status codes by region usually indicate geoblocking policies, WAF (Web Application Firewall) rules filtering by source IP, or CDN edge nodes returning errors in regions where your service is not correctly configured. A 403 from Asia while Europe returns 200 is a common sign of geoblocking.

Does the HTTP check follow redirects?

No — redirects are intentionally not followed. A URL returning a 301 records that 301 and stops. This lets you verify that HTTPS redirect rules are in place, confirm the redirect chain is correct, and spot redirect loops or cases where HTTP is not redirecting to HTTPS.

Report for https://it-com-lake.check-host.eu

Name: Check-Host https://it-com-lake.check-host.eu 網站可用性與回應標頭檢測
Author: Check-Host

Location	Result	Time	IP Address
Albania, Tirana	Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443	2.97 s	5.231.80.223
Australia, Sydney	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Bosnia and Herzegovina, Novi Travnik	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Bulgaria, Sofia	Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443	3.07 s	5.231.80.223
Canada, Montreal	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Switzerland, Bern	Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443	3.06 s	5.231.80.223
Chile, Santiago	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
China, Hohhot	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Germany, Nuernberg	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Germany, Frankfurt am Main	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Germany, Frankfurt am Main	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Germany, Limburg	Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443	3.04 s	5.231.80.223
Germany, Frankfurt am Main	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Germany, Duesseldorf	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Denmark, Glostrup Municipality	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Spain, Bilbao	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Finland, Helsinki	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Finland, Helsinki	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
France, Gravelines	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
France, Paris	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
United Kingdom, London	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Georgia, Tbilisi	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	it-com-lake.check-host.eu
Greece, Athens	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	it-com-lake.check-host.eu
Hong Kong, Hong Kong	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Croatia, Zagreb	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Hungary, Budapest	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Indonesia, Jakarta	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Israel, Petach Tikwa	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Israel, Netanja	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
India, New Delhi	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Iceland, Reykjavik (Miðborg)	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Italy, Como	Network error [ERR_CANCELED]: Timeout (15000ms)	15.37 s	5.231.80.223
Kuwait, Kuwait City	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	it-com-lake.check-host.eu
Lithuania, Pilaite	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Latvia, Riga	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Moldova, Chisinau	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Netherlands, Amsterdam	Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443	3.07 s	5.231.80.223
Netherlands, Amsterdam	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Netherlands, Amsterdam	Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443	3.06 s	5.231.80.223
Netherlands, Amsterdam	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Norway, Oslo	Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443	3.08 s	5.231.80.223
Poland, Warsaw	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Romania, Bacău	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Romania, Bucharest	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Serbia, Belgrade	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Russia, St Petersburg	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Singapore, Singapore	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Turkey, Istanbul	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
Taiwan, Taipei	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
United States, Miami	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
United States, Dallas	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
United States, Kansas City	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
United States, Dallas	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223
South Africa, Johannesburg	Network error [ERR_CANCELED]: Timeout (15000ms)	15.00 s	5.231.80.223

Albania, Tirana

Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443

2.97 s

0

5.231.80.223

Australia, Sydney

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Bosnia and Herzegovina, Novi Travnik

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Bulgaria, Sofia

Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443

3.07 s

0

5.231.80.223

Canada, Montreal

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Switzerland, Bern

Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443

3.06 s

0

5.231.80.223

Chile, Santiago

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

China, Hohhot

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Germany, Nuernberg

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Germany, Frankfurt am Main

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Germany, Frankfurt am Main

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Germany, Limburg

Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443

3.04 s

0

5.231.80.223

Germany, Frankfurt am Main

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Germany, Duesseldorf

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Denmark, Glostrup Municipality

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Spain, Bilbao

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Finland, Helsinki

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Finland, Helsinki

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

France, Gravelines

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

France, Paris

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

United Kingdom, London

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Georgia, Tbilisi

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

it-com-lake.check-host.eu

Greece, Athens

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

it-com-lake.check-host.eu

Hong Kong, Hong Kong

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Croatia, Zagreb

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Hungary, Budapest

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Indonesia, Jakarta

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Israel, Petach Tikwa

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Israel, Netanja

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

India, New Delhi

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Iceland, Reykjavik (Miðborg)

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Italy, Como

Network error [ERR_CANCELED]: Timeout (15000ms)

15.37 s

0

5.231.80.223

Kuwait, Kuwait City

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

it-com-lake.check-host.eu

Lithuania, Pilaite

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Latvia, Riga

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Moldova, Chisinau

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Netherlands, Amsterdam

Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443

3.07 s

0

5.231.80.223

Netherlands, Amsterdam

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Netherlands, Amsterdam

Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443

3.06 s

0

5.231.80.223

Netherlands, Amsterdam

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Norway, Oslo

Network error [EHOSTUNREACH]: connect EHOSTUNREACH 5.231.80.223:443

3.08 s

0

5.231.80.223

Poland, Warsaw

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Romania, Bacău

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Romania, Bucharest

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Serbia, Belgrade

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Russia, St Petersburg

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Singapore, Singapore

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Turkey, Istanbul

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Taiwan, Taipei

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

United States, Miami

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

United States, Dallas

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

United States, Kansas City

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

United States, Dallas

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

South Africa, Johannesburg

Network error [ERR_CANCELED]: Timeout (15000ms)

15.00 s

0

5.231.80.223

Check-Host.cc

Check website https://it-com-lake.check-host.eu