Dr. Hannah Kessler

Articles by Dr. Hannah Kessler

• X API Alternative: What 1,000 Posts Cost on X Pay-Per-Use vs EveryInfra

  X API reads cost $0.005 per post and $0.010 per user. We priced 1,000 posts, followers, and replies with 27 live calls, and show when X costs less.

• Health Misinformation Monitoring: Tylenol Data, One Year On

  How drug makers, device makers, hospitals and public health teams can use public social and search data to watch health misinformation and possible adverse event reports. We ran 13 live calls on the Tylenol and autism topic and measured who posts, when, and how reach is spread.

• Social Media Research Samples: Run the Same Search Twice and Half of It Changes

  Before you use social media search results as a research sample, test whether the sample is stable. On October 24, 2026 we ran the same queries again after two minutes. On X, YouTube and TikTok only about half of the results matched. This post also covers deletions, duplicates, time windows and the status of DSA Article 40.

• How to Build a Trademark Docket Monitoring Product: From Status Changes to Verifiable Action Items

  Trademark status alerts require more than monitoring a single status field. This article breaks down how serial numbers, documents, deadlines, source verification, similarity leads, manual assignment, scam detection, and legal boundaries combine to form a monitoring product.

• Beyond Job Hunting: How to Build Commercial Signal Products from Job Postings

  Learn how to use job postings for B2B lead research. This guide covers public roles, company matching, and freshness checks to deliver evidence-backed CRM research tasks, while explaining why a hiring signal is not the same as purchase intent.