Expired domains in construction and renovation

Originally a Czech database of construction products (2007–2010). Then a long period of redirects (2010–2021) gave way to adult spam content (2021), followed by a domain-for-sale page (2021) and then redirects again up to the present.

From 2009 to 2017, the niche was consistently heat pumps and solar panels (Tepelná čerpadla, solární panely a kolektory). In 2022, there was a sharp shift to a commercial niche "Ploty, brány, stavby" (fences, gates, construction), which does not match the original.

Originally a political site for Republican youth (2008–2013), then a sharp pivot to a Chinese construction company (2014–2015), later pornographic spam (2022) and an Indonesian online casino (2023–2026). The final niche is completely irrelevant to the original.

Initially a site about waterproofing and construction services (2022), then fully switched to spam content for gambling/lottery niche starting February 2024.

Originally (2014–2017) — a Chinese site about environmental protection and construction («中国环保建设网», China Environmental Protection Construction Network). In 2023–2025, there was a sharp shift to an online movie streaming site («策驰影视») and a Japanese resource with a questionable name («x导航xapp»).

A Japanese-language site, judging by the page titles, was likely dedicated to construction, renovation, or interior design ("interior finishing," "rich nature," "hardware style"). The niche remained stable throughout the site's lifetime (from 2004 to 2019).

From 2002 to 2019, the domain was consistently used as a site for a Japanese local service for PC repair, data recovery, software/PC sales, and website creation (Tokyo/Kanagawa). After the drop, the niche shifted to parking/empty title, and since November 2024 — to casino spam (Jilievo, JILIHOT, Gold99 online casino).

Originally (2005–2009) a site about D-47E466, then a long idle period/empty page titles, in 2019–2022 — a sports betting guide, in 2024 — a Chinese renovation company and Euro-2024 streaming. The final niche (streaming) does not match the original one, which is likely what the links were built for.

Initially (2012–2020) the domain served a repair shop niche with the title "The D-C723D8." The niche then changed multiple times: Thai lottery/gambling (2020), auto repair content (2023), parking/info page (2023), Korean slot casino (2024–2025), redirects and Korean political/blog content (2026). The final niche does not match the period that could have built a repair-related link profile.

Originally (2008–2021) a Japanese site selling building materials and offering franchises (D-4CA4F4 Co., Ltd.). In 2022 a sharp pivot to a Chinese online casino (pjh葡京会5886), after which the domain went into unstable redirectsand parking.

Originally (2001-2010) the site represented a log home construction company (D-A98DAA). After a long gap in archiving, from 2016 the niche disappeared, the domain was parked, and then turned into a technical nginx placeholder.

The domain was consistently used from 2004 to 2021 as the site of the Czech construction company D-159518 s.r.o. (services, gates). After 2022, the niche radically shifted to spam: first Spanish-language content about ball mills, then health spam, indicating the domain was taken over after registration expired.

Originally (2008–2014) the site of the D-E9F966 music project, then a long period of empty pages and hosting placeholder (2014–2018), and since 2022 fully switched to the niche of ecological construction (straw bale houses).

The site of an Italian training center specializing in training and safety in the construction industry. The niche was stable throughout its entire lifecycle, with no niche change.

Originally (2009–2015), the site was a scientific bioinformatics resource called “D-625974 - Select Your SNPs.” Then from 2017 to 2022, the domain hosted a Japanese site about surveillance cameras (“監視カメラの特徴”). From 2023 to the present, it has been a site about iPhone repair in the Japanese city of Koshigaya (“越谷蒲生でも修理は可能？iPhone修理前にやっておくべきこととは？”). The niche has changed radically at least twice.