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Is the keyword difficulty metric in Semrush more reliable than the one in Ahrefs for finding low competition keywords in the health niche?

ChatGPTgpt-61 query11/1/2026
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Fan-out diagram

The searches the AI actually ran for this prompt.

SEED QUERY
Is the keyword difficulty metric in Semrush more reliable than the one in Ahrefs for finding low competition keywords in the health niche?
1 real search · 1 real-search pass
Semrush keyword difficulty calculation backlinks domain authority SERP features official methodology Ahrefs keyword difficulty backlinks top 10 official health YMYL keyword researchGoogle ↗
OBSERVEDReason

Badge and edge weight = share of passes that produced the query. Hover a query for its intent and routing format.

Query classes

Google's semantic query class for every sub-query: what kind of answer each search is after, simulated vs real.

ChatGPT real searches (1)
Short factOther / navigationalComparisonConsequenceReason100%DefinitionInstructionYes / no

Classes come from the query-classifier (a local Laya model). 1 of 1 calls are low-confidence (under 50%) — hover a query in the table to see its confidence.

Searches and sources

ChatGPT1 real searches · gpt-6
Semrush keyword difficulty calculation backlinks domain authority SERP features official methodology Ahrefs keyword difficulty backlinks top 10 official health YMYL keyword research Google ↗

Queries

1 queries · click a column to sort
Query / typeSearchIntentQuery classRouting formatClusterFreq ↓Weight
Semrush keyword difficulty calculation backlinks domain authority SERP features official methodology Ahrefs keyword difficulty backlinks top 10 official health YMYL keyword research
OBSERVED
Google ↗
AI Mode ↗
—Reason——1x
of 1