ahc/2.1

[[TODO: MAP ONE SENTENCE SUMMARY]]

Category: [[TODO: MAP CATEGORY]] Avg 1.1 req/min Seen on 30 systems 165 observed requests 1 exact variants First seen August 4, 2026 Last seen October 19, 2026

[[TODO: MAP INTRODUCTION PARAGRAPH 1]]

[[TODO: MAP INTRODUCTION PARAGRAPH 2]]

What is ahc/2.1?

[[TODO: MAP DEFINITION SUMMARY]]

[[TODO: MAP SHORT REFERENCE SUMMARY]]

Analyst summary: [[TODO: MAP ANALYST REPORT SUMMARY]]
User-agent
ahc/2.1
Observed source IPs
0
Observed requests
165
Source networks
51
Exact variants
1
Latest hit count
350
Latest miss count
0
Latest 404 count
0
Unique paths
4
Related campaigns
[[TODO: MAP RELATED CAMPAIGN COUNT]]

Observed exact user-agent strings

ahc/2.1 First seen August 4, 2026 · Last seen October 19, 2026

Behavior profile

[[TODO: MAP BEHAVIOR PROFILE INTRO]]

Category
[[TODO: MAP CATEGORY]]
Average request rate
1.1 requests per minute
HTTP and HTTPS support
[[TODO: MAP HTTP HTTPS SUPPORT]]
HTTP version support
[[TODO: MAP PROTOCOL SUPPORT SUMMARY]]
Redirect behavior
[[TODO: MAP REDIRECT BEHAVIOR]]
Robots.txt behavior
[[TODO: MAP ROBOTS TXT BEHAVIOR]]
Crawl-rate behavior
[[TODO: MAP CRAWL RATE BEHAVIOR]]
JavaScript execution
[[TODO: MAP JAVASCRIPT SUPPORT]]
Form submission activity
[[TODO: MAP FORM SUBMISSION ACTIVITY]]
Malformed URL requests
[[TODO: MAP MALFORMED URL BEHAVIOR]]
HTTP/1.0: [[TODO: MAP HTTP 1.0 SUPPORT]] HTTP/1.1: [[TODO: MAP HTTP 1.1 SUPPORT]] HTTP/2: [[TODO: MAP HTTP 2 SUPPORT]] HTTP/3: [[TODO: MAP HTTP 3 SUPPORT]] [[TODO: MAP HEADER ORDER FINGERPRINTED]]

Source distribution

[[TODO: MAP SOURCE DISTRIBUTION INTRO]]

Top countries

Country Networks Site sightings Share
United States 41 66 69.1%
Germany 4 14 18.2%
Canada 2 6 10.3%
Unknown 3 3 1.8%
China 1 1 0.6%

Top ASNs

ASN Organization Networks Share
AS396982 [[TODO: MAP ASN ORGANIZATION]] 28 51.5%
AS16509 [[TODO: MAP ASN ORGANIZATION]] 13 17.6%
AS24940 [[TODO: MAP ASN ORGANIZATION]] 3 13.3%
AS63023 [[TODO: MAP ASN ORGANIZATION]] 2 10.3%
AS3209 [[TODO: MAP ASN ORGANIZATION]] 1 4.8%
AS134768 [[TODO: MAP ASN ORGANIZATION]] 1 0.6%

Top datacenters

Provider Type Snapshots Share

Representative source IPs

[[TODO: MAP REPRESENTATIVE IPS INTRO]]

HTTP fingerprint and request characteristics

[[TODO: MAP HTTP FINGERPRINT INTRO]]

Observed header order
[[TODO: MAP HTTP HEADER ORDER SUMMARY]]
Common headers sent
[[TODO: MAP COMMON HEADERS SUMMARY]]
TLS and HTTPS behavior
[[TODO: MAP TLS HTTPS SUMMARY]]
URL normalization behavior
[[TODO: MAP URL NORMALIZATION SUMMARY]]
Malformed request patterns
[[TODO: MAP MALFORMED REQUEST SUMMARY]]
[[TODO: MAP OBSERVED HTTP HEADERS]]

Observed sample requests

[[TODO: MAP SAMPLE REQUESTS INTRO]]

GET
/obituary/ilda-dias/
Status pattern: HTTP 200
Seen 2 times, Last seen October 17, 2026
GET
/obituary/ilda-dias
Status pattern: HTTP 200
Seen 2 times, Last seen October 17, 2026
GET
/ranked-worlds-safest-airlines-for-2026/
Status pattern: HTTP 200
Seen 1 times, Last seen September 10, 2026
GET
/ranked-worlds-safest-airlines-for-2026
Status pattern: HTTP 301
Seen 1 times, Last seen September 10, 2026
GET
/appeals/funeral-of-steven-dias-d-o-b-08101997/
Status pattern: HTTP 200
Seen 1 times, Last seen September 3, 2026
GET
/appeals/funeral-of-steven-dias-d-o-b-08101997
Status pattern: HTTP 200
Seen 1 times, Last seen September 3, 2026
GET
/
Status pattern: HTTP 200
Seen 2 times, Last seen August 20, 2026
GET
/robots.txt
Status pattern: HTTP 200
Seen 2 times, Last seen August 20, 2026
GET
/sellers.json
Status pattern: HTTP 404
Seen 4 times, Last seen August 18, 2026
GET
/app-ads.txt
Status pattern: HTTP 404
Seen 2 times, Last seen August 15, 2026

Related campaigns and associations

[[TODO: MAP RELATED CAMPAIGNS INTRO]]

[[TODO: MAP RELATED CAMPAIGN NAME]]

[[TODO: MAP RELATED CAMPAIGN SUMMARY]]
Related IPs: [[TODO: MAP RELATED CAMPAIGN IP COUNT]], Systems seen: [[TODO: MAP RELATED CAMPAIGN SYSTEMS SEEN]]
Confidence: [[TODO: MAP RELATED CAMPAIGN CONFIDENCE]]

Detailed analyst report

[[TODO: MAP ANALYST REPORT PARAGRAPH 1]]

[[TODO: MAP ANALYST REPORT PARAGRAPH 2]]

[[TODO: MAP ANALYST REPORT PARAGRAPH 3]]

Frequently asked questions about ahc/2.1

What is ahc/2.1?

[[TODO: MAP FAQ WHAT IS ANSWER]]

Is ahc/2.1 considered malicious?

[[TODO: MAP FAQ MALICIOUS ANSWER]]

Does ahc/2.1 respect robots.txt and crawl-rate controls?

[[TODO: MAP FAQ ROBOTS ANSWER]]

What infrastructure is commonly associated with ahc/2.1?

[[TODO: MAP FAQ INFRASTRUCTURE ANSWER]]