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Working hours

Calculate working time across midnight.

Enter your details and see the result immediately. Always verify important decisions.

Formula or assumption(end − start + 24h) mod 24h
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46 tools
FREE NETWORK TOOLS

Understand your internet connection.

Check your public IP address and the SSL/TLS certificate chain of a website. No account needed.

2 network tools

Kontrola IP adresy

Bezplatný nástroj: Kontrola IP adresy. Zadejte hodnoty a zobrazte výsledek.

Open alternative IP checker

This IP check runs on the Omnivumo server using the public connection address. Country is estimated from the local IP-country database. Provider, ASN, exact city and VPN/Tor status are not independently verified.

This IP check runs on the Omnivumo server using the public connection address. Country is estimated from the local IP-country database. Provider, ASN, exact city and VPN/Tor status are not independently verified.

Kontrola SSL certifikátu

Bezplatný nástroj: Kontrola SSL certifikátu. Zadejte hodnoty a zobrazte výsledek.

Alternative: detailed SSL Labs test

This certificate check runs on the Omnivumo server and opens a direct TLS connection to the public hostname you enter. Private and local network targets are blocked; revocation and a full browser trust assessment are not performed.

This certificate check runs on the Omnivumo server and opens a direct TLS connection to the public hostname you enter. Private and local network targets are blocked; revocation and a full browser trust assessment are not performed.

What is a certificate chain?

A site commonly has a leaf certificate, intermediate certificates and a trusted root CA. Browsers may judge trust differently from the scanner.

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Výpočty bez komplikací

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IP Geolocation by DB-IP
Jazyková verze se ještě upravuje: některé odborné termíny a právní informace mohou být v angličtině. Důležité výsledky si ověřte.