Website Crawl & Data Completion

I have a spreadsheet of roughly 350 entries that are still missing one critical piece of information: the contact email address. Some of the source URLs I can supply directly, while others will require you to locate the most relevant site yourself before extracting the address.

Here is how I see the task:

• Crawl each provided or discovered website, locate a valid, non-generic email address (ideally a direct contact rather than “info@”).
• Enter the email into the correct row of my sheet, keeping all formatting consistent.
• Double-check for duplicates or obvious bounces so that every one of the 350 rows ends up with a clean, usable address.

I will share the spreadsheet plus the partial list of sites the moment we start. Please finish the entire set within three days; I will be checking progress daily to make sure everything stays on track. A final pass for accuracy before delivery will be appreciated.

If you have solid experience in web scraping, light-weight crawling tools, or clever manual research techniques, this should be a straightforward project.