Created
April 25, 2025 23:05
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| #!/bin/bash | |
| # 1st hop CNAME lookups with Google's DNS resolver | |
| query_results="" | |
| for i in {1..20}; do | |
| echo "Lookup attempt $i:" | |
| cname_value=$(dig @8.8.8.8 THE.DOMAIN.HERE +short | head -n1) | |
| echo "CNAME: $cname_value" | |
| query_results+="$cname_value"$'\n' | |
| echo "----------------------------------------" | |
| sleep 1 | |
| done | |
| unique_results=$(echo -n "$query_results" | sort | uniq | grep -v -e '^$') | |
| unique_count=$(echo "$unique_results" | wc -l) | |
| echo "Summary:" | |
| echo "Unique CNAME values found: $unique_count" | |
| if [ $unique_count -gt 1 ]; then | |
| echo "Status: SUCCESS (Multiple unique CNAME values found)" | |
| else | |
| echo "Status: FAILURE (Only one unique CNAME value found)" | |
| fi |
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