Expired .com domains in industry and equipment

Actual niche not confirmed: no snapshots with real content in the entire Wayback Machine history. The domain mostly returned 302 redirects, and the only 200 response (2022-12) has an empty page title. The domain name (D-5A33A4.com) may suggest mining equipment comparison, but this is not backed by data.

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 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.

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.

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.

A German-language site about pond pump testing (D-C7D6A6), but the domain is a typo-squatter (D-C7D6A6.com instead of D-C7D6A6.com) and throughout its history alternated between its own content and redirects to the original domain D-C7D6A6.com.

Originally (2006–2018) the site of a Chinese manufacturer of electronic components (microwave devices, filters, amplifiers). Since 2019, the niche shifted to casino spam, then to porn spam, which is completely irrelevant to the original link profile.

Initially a site for a Chinese company selling industrial equipment (2013-2016), then a sharp shift to a spam doorway with gambling and casino content (2017-2020).

Stable PCB manufacturing niche (Deshine), no niche change throughout the entire recorded history.

The domain started as a local Italian portal (Reggio Emilia), then had long redirects (2018-2019), after which it sharply switched to Chinese spam content (boiler manufacturing, then casino/gambling). The final theme completely mismatches the original and is clearly spam-oriented.

Originally (2002–2004) the site of a Chinese hardware manufacturer (五金制品). The niche changed multiple times afterward: in 2011–2012 it was used for a spam page for an online casino (gambling), in 2014 it was taken over for a wedding invitation, and in 2021–2022 it turned into a doorway page with adult content and links to online streaming sites.

Final niche — Iranian metallurgical/manufacturing company ("حدید فلز سبلان"), but it only appears in March 2025. Before that (2023–2024), the domain either sat on 301 redirects (including to unknown addresses) or served blank pages with no page title, which makes it impossible to confirm that the old link profile matches the current niche.

Stable niche of lighting and chandelier manufacturing (OEM/ODM) in China with no niche changes throughout its history.