Expired domains in education and courses

From 2006 to mid-2025, the site was dedicated to Tai Chi Chuan and Qigong in Germany (training, certification, DVD). No niche changes occurred.

Originally (2004) the domain hosted a computer services site, then (2010) switched to e-learning. After a long period of redirects and downtime, since 2018 it became a Romanian-language site about website creation, and in 2023 it turned into a spam page for an online casino (slots).

From 2008 to 2014, the site consistently operated in the niche of tutor registration (家庭教師) in the Kansai region (Japan). In late 2011, the company name in the page title changed from "フィール" to "デスクスタイルへ", which may indicate a change of ownership or rebranding, but the niche remained the same.

From 2001 to 2021, the site consistently represented the Japanese school of flamenco and Spanish dance "D-4B5C45" (小林伴子フラメンコ・スペイン舞踊教室). In 2022, the niche radically shifted to English-language content with the title "Precautions For Bad Mood," which is a clear sign of the dropped domain being taken over and filled with spam content.

Originally the official website of the Siak Regency Education Office (Indonesia); the latest snapshot shows a sharp shift to gambling spam (Togel Sidney).

Originally the site of the Italian business school 'D-866824' (2012-2014). Later, a failure in history, and from 2016 the domain was taken over and turned into a spam site about luxury counterfeits (Louis Vuitton), with titles like 'negozio per cheap scarpe louis vuitton factory outlet'.

Throughout its entire historical period (2003–2018), the domain hosted a German-language site about studying in the US. After the drop, the niche shifted to casino/gambling (2024–2025).

Initial topic (2024-05) — a Chinese educational company '项城兆邦教育有限公司'. Then in 2024-2025 the domain went through a series of 301 redirects, and the final content (2026-04) — '乐玩手机版-乐玩lewan(中国)', which is typical of online casinos/gambling. The topic changed at least once: education → gambling.

From 2012 to 2017, the site was a consistent blog about SEO/SEM training and making money online. In 2019, the niche completely shifted to a mobile gaming portal, and since 2024, redirects and domain parking have been observed.

Originally (2013–2018) the site was a stable educational project "D-6A578C" (training, courses). After a period of instability and redirects, the domain was taken over and turned into a spam resource linked to online casinos and toto (KAWANLAMA88, RATUKIDUL88).

Consistent online education niche (online colleges, degrees) from 2010 to 2015. Starting in 2016, the site loses content (empty page titles), and from 2018 it shifts to frequent 302/301 redirects and domain parking, with the final stage being the domain put up for sale.

Consistent niche throughout the site's lifetime (2013–2022), related to maps or information about Kyoto University (京大マップ). No niche change recorded.

The niche shifted several times within the education vertical: from free D-0560F3 for a specific university (2010) to a commercial service helping students in Australia and New Zealand (2017–2018, 2023). The final niche partially overlaps with the original, but the link profile may have been built across different stages.

Originally a blog about Tokyo ("D-F1AB05"), then a Japanese diary ("佐知子の日記"), then gambling/casino ("東京カジノスタイル", "Gamingbet99"), with bits of betting affiliate content ("D-F1AB05.com m88") and random Japanese content about schools.

The domain started as a legitimate TEDx event site (2010-2019), but from 2020 there was a radical shift to Chinese gambling content ("大发快三规律" — lottery/gambling), then to Apache parking. The final niche is completely incompatible with the original link profile.

Originally a children's art education site (2015), then pivoted to gambling and lotteries (2017–2018), followed by blank pages and redirects, and since 2025 it has been used as a catalog of free comics. The niche changed at least three times, and the final one does not match the niche that built the bulk of the backlinks.

Initially — an academic site for a research center at Renmin University of China (2010–2013). Then domain parking (2014–2016), a French streaming site (2017), a Chinese site '忍蛙网' (2017–2022), and finally an Australian lottery/gambling resource (2023–2025). Final niche — gambling.

Originally the site was dedicated to language courses and D-0E272E (2008-2010), then shifted to a narrow niche — obtaining an engineering education in Germany for students from Malaysia (from 2015). The link profile is likely irrelevant to the final Malaysian niche.

Originally the domain was used as a subdomain redirect or microsite tied to the Technical University of Berlin (D-003EAF.de). Starting in 2010, the niche shifted drastically to Japanese-language spam content (garbled characters in page titles — the result of incorrect encoding of Japanese text), which persisted through the latest snapshot.

For over 9 years (2010–2019) the site had the page title "Home Page" with no real content; starting in mid-2021 and through the end of the archive, the theme shifts to "Early education – children" — a sharp change from an empty placeholder to education.