Expired .net domains with a past

Originally the site was dedicated to the "D-CD75FE" campaign (likely a community or union initiative). Since 2019, the niche has repeatedly shifted to outright spam: Japanese pharma content (Viagra), adult dating, and in 2025–2026 — a Spanish-language spam store selling football jerseys.

From 2015 to mid-2024, the site consistently held the same page title "D-4B018A," indicating a niche related to D-4B018A (material, jewelry, or accessories). In December 2024, the niche abruptly shifted to Indonesian gambling spam (slots/casino), which persisted until September 2025. The main link profile was likely built around the original niche and is entirely irrelevant to the final spam content.

Originally (2006-2014) a Japanese site about life abroad/slow living, then (2016) a sharp pivot to a Japanese site about local horse racing, after which (2020-2021) the site turned into an English-language spam blog with adult content (Camsoda, Adult Dating).

The domain started as a Dutch link directory portal (startpagina), briefly became a hosting company site in 2009, then returned to the portal niche and remained so until ~2018. In 2025, a sharp shift to spam casino content (slots, bandar terpercaya) was recorded.

From 2001 to 2019, the domain was used for a German-language music/event niche (D-F0357D — a promo group, with party and festival announcements). From 2020, the niche shifted to a completely irrelevant one (Hair Removal Effect / laser hair removal), and then to Indonesian gambling (Slot/Toto).

The domain consistently existed as a music site from 2002 to 2023 (German-language, judging by the page title "Der Musik auf der Spur"). In 2024, the niche drastically shifted to Asian spam content (titles with Chinese characters, presumably gambling/betting).

The domain went through several phases: long periods of 302 redirects (since 2021), then operated as a Korean blog reviewing Toto sites (gambling/betting) with the page title "【토토사이트】 토토먹튀블로그", after which it redirected again and, finally, was captured in 2025 with the page title "미슬린X" (undefined niche). The final niche does not match the gambling profile that likely attracted the bulk of the backlinks.

Originally a Japanese auto repair shop site (bodywork repair), briefly changed its name in 2022 (likely a rebrand or ownership change), after which it ceased to be a content resource and began consistently returning 301 redirects to unknown addresses.

Originally (2002–2011) — a science-popular site about malacology (the study of mollusks) in Spanish/Portuguese. From 2014 — domain parking, then from 2019 — a Japanese online casino site, which remains to this day.

From 2002 to 2019, the domain was a static business card site "Welcome to 'D-53DB00..." (likely a guest house or vacation rental). In 2021, the niche abruptly shifted to a Chinese sports streaming site "人人体育直播视频" (sports broadcasts), after which the domain went into a 301 redirect.

Originally a Japanese site about servers (2004-2007). From 2008 it turned into a spam doorway with page titles stuffed with keywords (car insurance, cash advance, debt consolidation, Gucci). In 2019-2021 — an empty WordPress blog and a Chinese gambling site. Complete chaos and niche changes.

The domain started as a dating/escort site (fuzoku), then shifted to adult video, casino/gambling, adult manga, a personal blog, and finally adult doujinshi. Multiple niche changes; the final niche (adult doujinshi) does not match the niche that likely built most of the backlinks (adult/casino).

Initially and for most of its life (2021–2023), the site was a stable resource for free engineering books in PDF, which matches the domain name. In 2023, the niche shifted to a vague "Highly Rated Engineering Books," after which the site stopped being substantive and turned into a technical placeholder.

Originally (2011–2016) — the site of the French government digital agency for the Correze department. Then parked (2019–2021), after which the domain was used for Japanese doorway pages about cosmetics/shampoos (2021–2022) and Chinese porn spam (2023). The final niche is completely irrelevant to the original one and the link profile.

The site had a consistent niche of 'D-CA5F52' (likely a culinary blog) during 2019–2022, but before and after that period it used unnatural redirects to an archived copy of itself.

From 2006 to 2023, the domain consistently hosted a D-16A470 site ('D-16A470') with no signs of niche change. In 2024–2025, content abruptly shifted to Chinese spam doorway pages with porn keywords, marking a drastic niche change that is irrelevant to the original link profile.

Originally (2019–2020) the site was dedicated to unblocking corporate accounts under Federal Law No. 115-FZ; in 2021 it switched to content about the Schengen Area, and by 2023 — to Korean gambling/먹튀 spam, after which it remained empty/without a title.

From 2007 to 2010, the domain consistently operated as a news site focused on Vedantic and Sri Vaishnava philosophy (Hinduism). After 2011, the content disappeared, and the site shifted to constant redirects or blank pages, with the niche no longer maintained.

Multiple changes: initial (1998, likely a Swedish site), then a long period of pharma spam (2002–2009, 'No Prescription Required Drugs', 'Buy Soma', 'vicodin'), an attempt to switch to sports news (2018, FIFA World Cup), later — gambling spam (2025, Thai casino) and frequent empty/parked pages. The final niche before the last drop does not match the period of backlink growth (pharma spam).

No niche throughout its entire history. The site was never a full-fledged content project; it existed as an empty directory ("Index of /") or a page with no title.