T-Online, a privately owned German company founded in 1995, is a news portal operating under the domain t-online.de. Owned by Ströer, a digital multi-channel media company, it operates primarily in Germany. While its main product is categorized as consumer electronics, its core function is news dissemination. In 2020, the company reported revenues under $10 million. The editorial staff is based in Berlin, and the portal attracts over 179 million monthly visits from approximately 29 million unique visitors.
T-Online implemented a stricter email authentication policy, requiring exact matching between the "From" domain and the DKIM signing domain, effective on an unspecified date. This change, abandoning relaxed alignment, may result in increased email bounce rates for senders using mismatched domains. Separately, on an unspecified date, T-Online published a travel article about Georgia, targeting German, Austrian, and Swiss readers, in collaboration with the Georgian National Tourism Administration. The article highlighted Georgia's diverse tourism offerings. Finally, a T-Online poll revealed that only 3% of Germans plan to purchase a Tesla, following a reported 75% drop in German Tesla sales in February, contrasting with a 32% rise in overall electric vehicle registrations during the same period.