Expired domains in industry and equipment

From 2021 to 2024 — Chinese industrial niche (water treatment and ion exchange equipment); since March 2024, a sharp shift to spam doorway pages with VPN/accelerator content (various names — 坚果加速器, 神灯app, Dragon加速器, etc.), the final niche does not match the original.

From 2016 to mid-2023, the site was dedicated to the production and sale of fireproof doors in China (companies "河北源晟门窗有限公司", then "河北宏安防火门有限公司"). At the end of 2023, the niche drastically changed to gambling (online casino "leyu乐鱼·体育").

Originally (2021-2022) a site about micro-loans (cash advance loans), then from 2024 repurposed for Japanese spam (conveyor equipment), and since mid-2025 stably operates as the Chinese VPN service V2VPN.

Originally the site of a German cultural and social center (Kabarett, Comedy, Kultur). In 2021, the niche abruptly shifted to a Chinese manufacturer of fasteners, then to a Chinese casino/betting site ("4001百老汇").

The site was originally dedicated to ice cream equipment (2010–2017), then abruptly switched to Chinese gambling and lotteries (2018–2020), after which it started redirecting (2021). The final content theme is completely irrelevant to the original.

Originally a corporate healthcare website, it shifted to fitness equipment in 2014, then became a German dating site in 2020, and later transitioned to a Vietnamese crypto site.

Originally the site of a Chinese company manufacturing aluminum sheets (2019). After a long period of downtime and redirects, the final niche before the drop was a spam gambling site (Canadian lottery "加拿大2.8"), which is completely inconsistent with the original niche.

Originally (2002–2016) — a site for a Chinese manufacturer of industrial filter equipment (压滤机), niche stable. After the drop (since 2019) the domain was hijacked and used for doorway pages: first lottery/casino spam, then (since 2024) adult content.

Originally a UN site dedicated to urban water management in African cities (2000–2004), then became a UNWAC placeholder (2005–2006), after which the niche changed multiple times: to a vacation blog (2015–2017), to hydraulic pumps (2022–2023), and parking (2020–2021). The final niche does not match the original one, which accounted for the bulk of the link profile.

The domain originally hosted a site in Chinese, presumably related to industrial environmental protection equipment, but the final niche before the last drop was Chinese-language porn content with doorway page titles.

From 2007 to 2023, the domain represented a Czech country and bluegrass music festival. In 2024, the niche abruptly shifted, first to a Chinese page about server software installation, then to a Russian-language spam site about cement mills and stone crushers.

Initially the domain was used for an unclear project "BD Polská" (possibly a local business/blog), but in late 2021 there was a sharp shift to the industrial niche "ore handling facility crusher feeders", which does not match the original link profile.

Originally the site of a Chinese manufacturer of diamond dies ("河间市金刚石模具有限公司"), active intermittently from 2005 to 2015. In 2018, the domain was hijacked and used for gambling ("新濠天地线上平台" — an online casino).

Multiple niche changes: Chinese shopping mall → Japanese Moncler spam → Chinese food service → coal machinery → security screening equipment → esports betting → adult spam. The final niche (adult) does not align with the periods when the domain could have earned links.

Originally a Chinese industrial equipment company site (2011–2014), then a sharp pivot to gambling spam (2015–2018), followed by adult spam (2019–2024), with periods of empty page titles. Final niche before the drop — blank page.

Before the drop (2015–2023), a stable B2B niche in industrial crane equipment (cranes, hoists, components). After takeover (since October 2023), fully replaced with Chinese porn spam, unrelated to the original niche.

From 2008 to 2017 (and briefly in 2020) — the site of a Malaysian electronics manufacturer (transformers, adapters, power supplies). From 2017 to 2019 — empty page titles (likely domain parking or a placeholder). From 2025 to 2026 — Chinese adult spam (porn doorway), unrelated to the original niche.

Repeated niche changes: initially (2006) a feather processing company site ("三祥羽毛有限公司"), then a long idle period, from 2014 to 2018 — a fire equipment site ("安徽三鑫消防器材有限公司"), after which the domain was taken over for gambling ("yobo体育app", 2021) and adult content ("草莓视频", 2024). Final niche — adult/spam, completely unrelated to the original one that might have attracted any natural links.

The domain started as the D-1488F8 site (digital fabrication/maker niche) in 2012–2013, then abruptly shifted to content about mobile internet regulation (2013–2014), after which it went to blank/parked pages and in 2020 contained Japanese spam content about debt and diets. The final niche before the drop does not match the original one and likely does not match the link profile niche.

Originally a music band site (2010–2016), then Squarespace parking (2016), later a spam page 'Free MP3 Downloader' (2020), then Chinese doorway pages (2023) with titles of automation and pump equipment companies. The final niche is completely irrelevant to the music-related link profile.