Why a TikTok downloader suddenly stops working
Many downloader websites do not fetch videos themselves; they call another service in the background. When that shared service is overloaded, rate-limited or changed by a TikTok update, every site built on it fails at the same time, often with "invalid link" or an empty result.
SLMtik sends TikTok links to a licensed engine first and, if it does not answer, retries automatically on our own server. You do not see any of this; you just get your file. If both are busy, wait a minute and try again, and check our troubleshooting guide.