Expired .net domains with a past

Cannot be determined — no Wayback Machine snapshots available, site history unknown.

Originally a personal blog/portfolio site for "D-268682 Bingaman" (2011-2015), then pivoted to a travel blog "Travel Blog by D-268682" (2019-2021). The niche shifted but stayed within the personal brand, which is not critical.

From 2011 to August 2019 — a stable photo gallery on obstetrics and gynecology (ultrasound, photos). In September 2019, the niche shifted to "obstetrics and gynecology MRCOG lectures" (educational lectures), followed by redirects and empty pages.

Throughout its history, the domain has been tied to the page title "D-C4EDAD," pointing to a stable niche, likely a conference or event. No niche shifts have been recorded.

The site existed from 2009 to 2020 as «日本パフォーマンス／アート研究所» (Japan Performance/Art Institute) — a stable Japanese art niche. In November 2020, it abruptly shifted to a lifestyle media outlet «ゆるめる» (relaxed content about health and lifestyle), which remained until the domain dropped in 2024.

From 2016 to 2022, the domain consistently held a data science / pattern discovery in data niche (page title "D-D48A24 | The science of finding D-D48A24 in data"). In 2024, a sharp shift to spam content with Chinese keywords for porn/casino was recorded.

From 2003 to 2024, the domain was consistently used for adult content (teen porn), with no niche changes. All page titles and pages were related to porn content.

Stable Japanese site in the adult dating and relationships niche (dating/adult), with no niche changes throughout its history (2004–2023).

From 2014 to 2017, the domain was used for a project called "Desarrollos" (development/construction), and in 2018 it was abruptly repurposed into a site about stock images on WordPress. The final niche does not match the original one, under which the bulk of the backlinks were likely built.

Japanese official product/brand site for "D-8726AB series" (formerly "D-8726AB lymph") — niche stable from 2016 to 2022 with no major shifts.

Originally (2004–2020) — a personal academic page for Professor Çetin Kaya Koç, stable with no niche changes. After 2020, content disappears; in 2022, 301 redirects to unknown addresses were recorded, and in 2023, an empty page with the title 'Loading'. No reliable final niche before the drop.

From 2001 to 2017, the domain operated steadily under the page title "D-C5455D - Transformation 2000 Network" (likely an English-language project on personal transformation/spiritual development). In 2021–2022, the niche shifted to a technical placeholder/Chinese domain showcase ("精品域名，老域名，精品米铺"), then a 404. The niche change is one-time, and the final niche does not match the link profile.

From 2006 to 2011, the site consistently represented a Brazilian web studio/agency (Arraial d'Ajuda – Porto Seguro – Bahia, 'Transformando o real em virtual'), then from 2013 it remained in a 'Site em Construção' status or parked for a long period; the niche did not change, but activity ceased.

Stable niche related to camping in Japan (D-7006C3 Nishi Tanzawa), traceable at least from 2017 to 2019. In the years leading up to the drop, content was absent, with no niche changes recorded.

From 2013 to 2014 — a Nepali news site 'D-E24B91 — Nepal News'; after a long gap (2014–2020) it was revived in 2020 as 'Global Nepalese News Portal'. The niche stayed within Nepali news, with no shift to other niches.

The site started as a resource about motorcycle routes (2016: "Ruta en Moto Madrid"), then from September 2017 to June 2021 it consistently operated as a motorcycle travel agency ("Viajes en Moto - Agencia de Viajes en Moto"). The niche remained within motorcycle tourism without abrupt shifts to irrelevant niches. The final content matches the original niche.

From 1998 to 2011, the site consistently existed under the brand "C.O.O.L-Net" (likely a community or local portal), without a change in niche.

Originally a Japanese site about travel to Niigata (2007–2009), then several niche changes: a WordPress placeholder (2012), a moving price comparison service (2013), an online store for red wine (2016), and finally a technical nginx page.

Stable Japanese niche focused on job placement for graduates of vocational schools (D-3F9B67) from 2018 to 2023, with no niche changes.

From 2006 to 2016, the domain consistently operated as the website of the Chinese language school "ハンズアカデミー" in Shibuya (Tokyo). After 2017, the niche shifted to a personal blog "Snow Mail -Kyoko's Blog-", then to an article about an aesthetics salon in Sendai, and by 2020 — to a Chinese store; in 2025 — an empty page/redirect.