facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)

[[TODO: MAP ONE SENTENCE SUMMARY]]

Category: [[TODO: MAP CATEGORY]] Avg 1.0 req/min Seen on 205 systems 27,290 observed requests 2 exact variants First seen August 3, 2026 Last seen September 28, 2026

[[TODO: MAP INTRODUCTION PARAGRAPH 1]]

[[TODO: MAP INTRODUCTION PARAGRAPH 2]]

What is facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)?

[[TODO: MAP DEFINITION SUMMARY]]

[[TODO: MAP SHORT REFERENCE SUMMARY]]

Analyst summary: [[TODO: MAP ANALYST REPORT SUMMARY]]
User-agent
facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
Observed source IPs
0
Observed requests
27,290
Source networks
171
Exact variants
2
Latest hit count
46,580
Latest miss count
3,811
Latest 404 count
0
Unique paths
78
Related campaigns
[[TODO: MAP RELATED CAMPAIGN COUNT]]

Observed exact user-agent strings

facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php) First seen August 3, 2026 · Last seen September 28, 2026
facebookexternalhit http facebook externalhit uatext First seen August 4, 2026 · Last seen September 28, 2026

Behavior profile

[[TODO: MAP BEHAVIOR PROFILE INTRO]]

Category
[[TODO: MAP CATEGORY]]
Average request rate
1.0 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
Ireland 67 437 57.7%
United States 46 693 41.2%
Unknown 47 118 1.0%
India 5 5 0.0%
Netherlands 1 1 0.0%
United Arab Emirates 2 2 0.0%
Vietnam 1 1 0.0%
Singapore 1 1 0.0%
Romania 1 1 0.0%

Top ASNs

ASN Organization Networks Share
AS32934 [[TODO: MAP ASN ORGANIZATION]] 86 98.7%
AS13335 [[TODO: MAP ASN ORGANIZATION]] 12 0.1%
AS396982 [[TODO: MAP ASN ORGANIZATION]] 4 0.0%
AS203020 [[TODO: MAP ASN ORGANIZATION]] 7 0.0%
AS206092 [[TODO: MAP ASN ORGANIZATION]] 1 0.0%
AS36352 [[TODO: MAP ASN ORGANIZATION]] 1 0.0%
AS45102 [[TODO: MAP ASN ORGANIZATION]] 3 0.0%
AS262287 [[TODO: MAP ASN ORGANIZATION]] 2 0.0%
AS207990 [[TODO: MAP ASN ORGANIZATION]] 3 0.0%
AS18403 [[TODO: MAP ASN ORGANIZATION]] 1 0.0%

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
/robots.txt
Status pattern: HTTP 200
Seen 162 times, Last seen September 26, 2026
GET
/2017/12/12/as-20-melhores-capas-de-2017/
Status pattern: HTTP 403
Seen 4 times, Last seen September 18, 2026
GET
/wp-content/uploads/2017/12/post-capa-2017.png
Status pattern: HTTP 403
Seen 1 times, Last seen September 18, 2026
GET
/top-10-busiest-airports-europe/
Status pattern: HTTP 200
Seen 1 times, Last seen September 17, 2026
GET
/robots.txt
Status pattern: HTTP 403
Seen 95 times, Last seen September 16, 2026
GET
/top-10-busiest-airports-united-kingdom/
Status pattern: HTTP 200
Seen 25 times, Last seen September 16, 2026
GET
/warum-die-bibel-sexualitaet-mit-wuerde-beginnt/
Status pattern: HTTP 200
Seen 20 times, Last seen September 14, 2026
GET
/2016/12/20/os-melhores-albuns-de-2016/
Status pattern: HTTP 403
Seen 1 times, Last seen September 12, 2026
GET
/connecticut-child-seat-rules-complete-guide-parents-drivers/
Status pattern: HTTP 200
Seen 1 times, Last seen September 12, 2026
GET
/top-8-puerto-vallarta-yacht-charter-catamaran-companies/
Status pattern: HTTP 200
Seen 1 times, Last seen September 12, 2026
GET
/?966bc6=ec9c17ac3f.js&ver=14.16.10
Status pattern: HTTP 200
Seen 1 times, Last seen September 11, 2026
GET
/top-10-busiest-airports-united-kingdom/
Status pattern: HTTP 403
Seen 1 times, Last seen September 8, 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 facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)

What is facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)?

[[TODO: MAP FAQ WHAT IS ANSWER]]

Is facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php) considered malicious?

[[TODO: MAP FAQ MALICIOUS ANSWER]]

Does facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php) respect robots.txt and crawl-rate controls?

[[TODO: MAP FAQ ROBOTS ANSWER]]

What infrastructure is commonly associated with facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)?

[[TODO: MAP FAQ INFRASTRUCTURE ANSWER]]