Struct CrawlerConfig 

pub struct CrawlerConfig {
    pub enabled: bool,
    pub dns_cache_ttl_secs: u64,
    pub verification_cache_ttl_secs: u64,
    pub max_cache_entries: u64,
    pub dns_timeout_ms: u64,
    pub max_concurrent_dns_lookups: usize,
    pub verify_legitimate_crawlers: bool,
    pub block_bad_bots: bool,
    pub dns_failure_policy: DnsFailurePolicy,
    pub dns_failure_risk_penalty: u32,
    pub max_stats_entries: usize,
}

Configuration for crawler detection and verification.

Fields

enabled: bool

Enable crawler detection

dns_cache_ttl_secs: u64

DNS cache TTL in seconds (default: 300 = 5 min)

verification_cache_ttl_secs: u64

Verification result cache TTL in seconds (default: 3600 = 1 hour)

max_cache_entries: u64

Maximum cache entries (default: 50000 for high-traffic deployments)

dns_timeout_ms: u64

DNS lookup timeout in milliseconds (default: 2000 - reduced from 5000)

max_concurrent_dns_lookups: usize

Maximum concurrent DNS lookups to prevent resource exhaustion (default: 100)

verify_legitimate_crawlers: bool

Verify legitimate crawlers via DNS

block_bad_bots: bool

Block detected bad bots

dns_failure_policy: DnsFailurePolicy

Policy when DNS verification fails (timeout, server error, etc.)

dns_failure_risk_penalty: u32

Risk penalty to apply when DNS verification fails (only used with ApplyRiskPenalty policy)

max_stats_entries: usize

Maximum entries in per-crawler/per-bot stats maps (prevents unbounded growth)

Implementations

impl CrawlerConfig

pub fn validate(&self) -> Result<(), String>

Validate configuration values

Trait Implementations

impl Clone for CrawlerConfig

fn clone(&self) -> CrawlerConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CrawlerConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CrawlerConfig

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CrawlerConfig

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for CrawlerConfig

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.