"view indexframe shtml link" points to accessing a legacy server-parsed framed page—inspect SSI usage and frame targets, mitigate security/SEO/UX issues, and modernize the layout or redirect to a contemporary, safer single-page structure.
IndexFrame shtml is a type of HTML file that uses frames to divide a webpage into multiple sections. Frames allow multiple HTML documents to be displayed in a single browser window, with each frame containing a separate HTML document. The "indexframe shtml" file is typically used as a container page that holds multiple frames, each displaying a different webpage or content. view indexframe shtml link
Modern search engines (Google, Bing) treat query parameters as potential duplicate content issues. If you cannot migrate off this system, use: Frames allow multiple HTML documents to be displayed