This domain is not a typical construction company website. It is a SharePoint-hosted link that redirects straight to a Microsoft login page, with no company branding, no contact details, and no evidence that dogusinsaat-my.sharepoint.com has been around longer than a few days. When a legitimate business wants you to log into a document or project portal, they usually provide a recognizable domain with their company name, a privacy notice, and some way to reach them if something goes wrong. Here, the WHOIS record is completely hidden, search engines are blocked from crawling the site, and the Wayback Machine has never captured a single snapshot. That does not mean it is a scam by itself, but it is a pattern that matches short-lived phishing pages more closely than a real construction firm’s document-sharing setup. If you received this link unexpectedly, especially in an email or text, do not enter any credentials until you can independently verify the sender’s identity through a known phone number or official company website. There is not enough positive signal here to call it safe, and too much opacity to call it legitimate.