After a link goes in, the natural question is whether it did anything. The honest answer is that it is hard to know, and often impossible to prove. That does not mean you cannot measure. It means you should measure the right things and be careful about what you conclude.
First, confirm the link exists as agreed
Before looking at rankings, check the basics. Open the live URL in a private window and confirm the link is present, points to the right page and uses the agreed anchor. Note any attributes on the link, such as nofollow, sponsored or ugc. Record the date you checked.
It sounds obvious, but a surprising number of reviews start with a ranking chart for a link that was never placed as planned.
Check whether it has been discovered
Look in Google Search Console for the target page. The links report can show linking sites, though it is a sample and often lags. A link missing from the report does not mean it is ignored. A link present in the report does not mean it is counted for ranking. Neither fact proves much, so treat both as one input.
Watch referral traffic
Real readers sometimes click links in articles. Look in your analytics for visits from the host domain. Referral traffic is a useful sign that the placement is relevant to people, and it is often the easiest evidence to read. It is also usually small, so do not expect it to justify the cost by itself.
Track rankings with a baseline
If you want to see whether rankings move, set a baseline before the link goes in. Track a short list of queries for the target page, with the position and the date, for a few weeks first. Then keep tracking after. Position data is noisy, so look at trends over a period rather than a single day.
- Track the same queries, in the same location, with the same tool.
- Record every other change made to the page or site in the same period.
- Compare against similar pages you did not touch.
Why is it hard to attribute a result?
Search results move for many reasons at once. Algorithm updates, seasonality, competitors' changes, your own content edits and other links you have built can all shift a position. If you add three things in one month and a page rises, you cannot say which of them did it.
A simple discipline helps: change one thing at a time where you can, and keep a log. Agencies running many clients can use unchanged pages as a rough control group.
Be patient, and be careful with timelines
Nobody can give you a reliable schedule for when a link starts to count. Some links appear to have an effect quickly, others show nothing, and a few may never matter. Decide your review window before you start, and avoid changing course after a week.
Decide what you will count as success
Write down in advance what would make you repeat the work. It might be a rise in rankings for a handful of queries, a few referral visits, or simply a clean placement that matches the brief. Setting that yardstick early stops you from reading results into noise later.
Remember too that a link is one signal among many. A page with weak content, poor internal links or a slow site will not be rescued by an insertion. If you want to talk through what to track for a specific page, use the contact page, and see curated link insertions versus guest posts if you are deciding how to approach a new page.
A note on limits: search guidelines and tactics change, and links are one signal among many. Results depend on your site, your competition and your category, and no result can be promised.