When I prepare a small marketing campaign, the hardest problems are rarely glamorous. A button points to last month's offer. A colleague pastes a link without the campaign label. Someone changes a page address after the newsletter draft is approved. Each mistake is small, but together they make results difficult to explain.
I prefer to solve this with a simple link register before reaching for another dashboard. A spreadsheet is enough at first. Give each destination a row with its campaign name, intended audience, owner and final address. The important part is agreeing which version everyone should use. A script becomes useful when checking those rows starts taking longer than updating them.
Keep the input ordinary
I would export that register as CSV. Familiar files make the process easier for a content team to maintain. A useful checker can read the destination column, reject addresses without an expected scheme and flag repeated campaign names. It should explain problems using the row number and page name, rather than leave a colleague staring at a technical error.
For example, a first version can validate structure with the standard URL parser available in most languages. That catches an unfinished address without making any network requests. A second pass can check whether required campaign parameters are present. Keep those rules specific to the team's own conventions; an unfamiliar parameter is not automatically a mistake.
Be careful with live requests
Checking whether a destination responds sounds straightforward. In practice, redirects, login pages and temporary failures complicate the answer. I would make live checks optional, use a short timeout and limit concurrency. A successful response does not prove the page contains the right offer. It only tells us that a server answered.
The report should preserve that distinction. Separate a malformed address from a timeout, and separate both from a destination that needs human review. Follow redirects only when there is a clear reason, record the final address and avoid treating every redirect as a broken link. Do not send private preview addresses or signed links to outside checking services.
Put the result where people work
A small HTML report can be easier to use than terminal output. Show the page name, the issue and the person responsible for reviewing it. Avoid publishing the complete campaign register if it includes unpublished plans. A local report or an approved shared workspace is usually sufficient for a small team.
I would run the checker before the final editorial review, then again if someone changes the destinations. That makes the check part of a real decision: are these links ready for the campaign? Running it repeatedly without a review process mostly produces noise.
Leave room for judgment
Automation handles repetition; people still decide whether the promise and destination match. I want a tool that helps a colleague notice a problem early, not one that declares a campaign perfect. Start with a small register, a few understandable checks and a report someone can act on. When that saves time consistently, add the next useful rule.

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