Hello,
Thank you for contacting Rank Math support, and sorry for any inconvenience that might have been caused due to that.
There are a few things you have to keep in mind when using any SEO plugin, not just Rank Math.
1. An SEO plugin alone cannot bring down or bring up the traffic in a day (or even a few days) unless incorrect Meta Tags are used by setting up the plugin improperly. That’s why we have a detailed tutorial on that:
https://rankmath.com/kb/how-to-setup/
2. All the SEO plugins add Meta tags for the search engines which can be checked by viewing the source of a page. For instance, here:
view-source:https://rankmath.com/
Other popular plugins generate similar tags:
https://i.rankmath.com/n94KyH
And with the Rank Math plugin, additional tags are added to a page so search engines can understand the content on a website better.
3. Google brings a new algorithmic update several times a month and the chances are great that your website got hit by that.
We have a full guide on that: https://rankmath.com/blog/google-algorithm-update-recovery/
And since you are using Rank Math PRO, you can even see if the drop in traffic co-relates to an algorithm update. Here’s how:
https://rankmath.com/kb/google-algorithm-updates/
Also interesting is your “instant indexing” feature, which should be called “instant crawling” feature. Crawling is instant, indexing takes 2-3 days.
You are correct that technically, this feature is requesting a crawl to the search engine but since we are tapping into Google’s API called “Indexing API” we went ahead with that name.
Hope that helps and let me know if you need my assistance with anything at all.