diff --git a/querying/src/asn.rs b/querying/src/asn.rs
index 8b6ca4c..d6f443f 100644
--- a/querying/src/asn.rs
+++ b/querying/src/asn.rs
@@ -129,6 +129,12 @@ pub struct AsnCache {
     cache: Arc<RwLock<HashMap<u32, CachedAsnData>>>,
 }
 
+impl Default for AsnCache {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl AsnCache {
     pub fn new() -> Self {
         Self {
diff --git a/querying/src/cache.rs b/querying/src/cache.rs
index e321f29..1446e3a 100644
--- a/querying/src/cache.rs
+++ b/querying/src/cache.rs
@@ -142,8 +142,7 @@ impl DatabaseCache {
                 },
             ],
         };
-        let metadata = serde_json::to_vec_pretty(&metadata)
-            .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
+        let metadata = serde_json::to_vec_pretty(&metadata).map_err(io::Error::other)?;
         self.write_file(METADATA_FILE, &metadata)
     }
 
diff --git a/querying/src/geoip.rs b/querying/src/geoip.rs
index 8e5d125..c0d58e1 100644
--- a/querying/src/geoip.rs
+++ b/querying/src/geoip.rs
@@ -3,7 +3,6 @@ use async_trait::async_trait;
 use maxminddb::geoip2::{City, Country};
 use maxminddb::{MaxMindDbError, geoip2};
 use serde::Serialize;
-use std::io;
 use std::io::Error;
 use std::net::IpAddr;
 
@@ -34,6 +33,12 @@ impl Default for IpInfo {
     }
 }
 
+impl Default for GeoIp {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl GeoIp {
     pub fn new() -> Self {
         GeoIp {
@@ -80,11 +85,10 @@ impl GeoIp {
 
         let country_code = country
             .as_ref()
-            .map(|c| c.country.iso_code)
-            .flatten()
+            .and_then(|c| c.country.iso_code)
             .map(|c| c.to_string());
 
-        let city_geo_name_id = city.as_ref().map(|c| c.city.geoname_id).flatten();
+        let city_geo_name_id = city.as_ref().and_then(|c| c.city.geoname_id);
 
         let mut location = (None, None);
         if let Some(city) = city {
@@ -141,7 +145,6 @@ impl Updatable for GeoIp {
     }
 
     async fn install(&mut self, (asn, country, city): Self::Base) -> Result<(), Error> {
-        self.update(asn, country, city)
-            .map_err(|e| Error::new(io::ErrorKind::Other, e))
+        self.update(asn, country, city).map_err(Error::other)
     }
 }
diff --git a/querying/src/lib.rs b/querying/src/lib.rs
index 7c60a99..e7f78d5 100644
--- a/querying/src/lib.rs
+++ b/querying/src/lib.rs
@@ -100,7 +100,7 @@ impl Checker {
             }
         };
 
-        let reverse_lookup = if let Some(ip) = ips.get(0).cloned() {
+        let reverse_lookup = if let Some(ip) = ips.first().copied() {
             match self.resolver.lookup_ptr(ip).await {
                 Ok(ptr) => ptr,
                 Err(e) => {
@@ -113,7 +113,7 @@ impl Checker {
         };
 
         let geo_ip = self.geo_ip.load();
-        let geo = match ips.get(0).map(|ip| geo_ip.lookup(ip.clone())) {
+        let geo = match ips.first().map(|ip| geo_ip.lookup(*ip)) {
             None => IpInfo::default(),
             Some(Ok(ip)) => ip,
             Some(Err(e)) => {
@@ -172,12 +172,11 @@ impl Checker {
                 .collect();
 
             for prefix in &prefixes {
-                if let Ok(ipnet) = prefix.parse::<IpNet>() {
-                    if cdn_list.contains(&ipnet.network()).is_some() {
-                        if !blocked_prefixes.contains(prefix) {
-                            blocked_prefixes.push(prefix.clone());
-                        }
-                    }
+                if let Ok(ipnet) = prefix.parse::<IpNet>()
+                    && cdn_list.contains(&ipnet.network()).is_some()
+                    && !blocked_prefixes.contains(prefix)
+                {
+                    blocked_prefixes.push(prefix.clone());
                 }
             }
 
@@ -215,7 +214,7 @@ impl Checker {
     }
 
     pub fn last_update(&self) -> Option<DateTime<Utc>> {
-        self.rx.borrow().clone()
+        *self.rx.borrow()
     }
 
     pub async fn download_all() -> Result<Bases, io::Error> {
diff --git a/querying/src/lists.rs b/querying/src/lists.rs
index 4a0871a..a925f62 100644
--- a/querying/src/lists.rs
+++ b/querying/src/lists.rs
@@ -14,6 +14,12 @@ pub struct CdnList {
     trie: IpnetTrie<NetworkRecord>,
 }
 
+impl Default for CdnList {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 #[derive(Debug, Clone, serde::Deserialize, serde::Serialize, Eq, PartialEq, Hash)]
 pub struct NetworkRecord {
     pub provider: String,
@@ -97,6 +103,12 @@ pub struct RuBlacklist {
     pub domain_count: usize,
 }
 
+impl Default for RuBlacklist {
+    fn default() -> Self {
+        Self::new()
+    }
+}
+
 impl RuBlacklist {
     pub fn new() -> RuBlacklist {
         RuBlacklist {
@@ -176,6 +188,35 @@ impl RuBlacklist {
     }
 }
 
+#[async_trait]
+impl Updatable for RuBlacklist {
+    type Base = (VecDeque<u8>, VecDeque<u8>, VecDeque<u8>);
+
+    async fn download() -> Result<Self::Base, Error> {
+        Ok((
+            VecDeque::from(
+                fetch_db(Self::get_url(
+                    "RKN_NETS",
+                    "https://antifilter.network/download/ipsum.lst",
+                ))
+                .await?,
+            ),
+            VecDeque::from(
+                fetch_db(Self::get_url(
+                    "RKN_DOMAINS",
+                    "https://antifilter.download/list/domains.lst",
+                ))
+                .await?,
+            ),
+            VecDeque::from(include_bytes!("../dist-domains.txt").to_vec()),
+        ))
+    }
+
+    async fn install(&mut self, (nets, domains, custom_domains): Self::Base) -> Result<(), Error> {
+        self.update(nets, domains, custom_domains)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::RuBlacklist;
@@ -205,32 +246,3 @@ mod tests {
         assert_eq!(list.contains_domain("notblocked.example"), None);
     }
 }
-
-#[async_trait]
-impl Updatable for RuBlacklist {
-    type Base = (VecDeque<u8>, VecDeque<u8>, VecDeque<u8>);
-
-    async fn download() -> Result<Self::Base, Error> {
-        Ok((
-            VecDeque::from(
-                fetch_db(Self::get_url(
-                    "RKN_NETS",
-                    "https://antifilter.network/download/ipsum.lst",
-                ))
-                .await?,
-            ),
-            VecDeque::from(
-                fetch_db(Self::get_url(
-                    "RKN_DOMAINS",
-                    "https://antifilter.download/list/domains.lst",
-                ))
-                .await?,
-            ),
-            VecDeque::from(include_bytes!("../dist-domains.txt").to_vec()),
-        ))
-    }
-
-    async fn install(&mut self, (nets, domains, custom_domains): Self::Base) -> Result<(), Error> {
-        self.update(nets, domains, custom_domains)
-    }
-}
diff --git a/querying/src/resolver.rs b/querying/src/resolver.rs
index 79ac0ce..9887b99 100644
--- a/querying/src/resolver.rs
+++ b/querying/src/resolver.rs
@@ -3,7 +3,7 @@ use hickory_resolver::net::runtime::TokioRuntimeProvider;
 use hickory_resolver::net::{DnsError, NetError};
 use hickory_resolver::proto::ProtoError;
 use hickory_resolver::proto::rr::RData;
-use std::io::{Error, ErrorKind};
+use std::io::Error;
 use std::net::IpAddr;
 use std::sync::Arc;
 use thiserror::Error;
@@ -93,6 +93,6 @@ fn map_resolve_error(error: NetError) -> ResolveError {
         {
             ResolveError::NxDomain
         }
-        _ => ResolveError::Other(Error::new(ErrorKind::Other, error)),
+        _ => ResolveError::Other(Error::other(error)),
     }
 }
diff --git a/querying/src/target.rs b/querying/src/target.rs
index a869d71..02d1b5c 100644
--- a/querying/src/target.rs
+++ b/querying/src/target.rs
@@ -17,26 +17,27 @@ pub enum Target {
 
 impl From<&str> for Target {
     fn from(input: &str) -> Self {
-        if input.to_lowercase().starts_with("as") {
-            if let Ok(asn) = input[2..].parse::<u32>() {
-                if asn >= 1 {
-                    return Target::Asn(asn);
-                }
-            }
+        if input
+            .get(..2)
+            .is_some_and(|prefix| prefix.eq_ignore_ascii_case("as"))
+            && let Ok(asn) = input[2..].parse::<u32>()
+            && asn >= 1
+        {
+            return Target::Asn(asn);
         }
 
-        if input.contains('/') {
-            if let Ok(ipv4_net) = input.parse::<Ipv4Net>() {
-                if ipv4_net.prefix_len() >= 8 {
-                    return Target::Ipv4Subnet(ipv4_net);
-                }
-            }
+        if input.contains('/')
+            && let Ok(ipv4_net) = input.parse::<Ipv4Net>()
+            && ipv4_net.prefix_len() >= 8
+        {
+            return Target::Ipv4Subnet(ipv4_net);
+        }
 
-            if let Ok(ipv6_net) = input.parse::<Ipv6Net>() {
-                if ipv6_net.prefix_len() >= 32 {
-                    return Target::Ipv6Subnet(ipv6_net);
-                }
-            }
+        if input.contains('/')
+            && let Ok(ipv6_net) = input.parse::<Ipv6Net>()
+            && ipv6_net.prefix_len() >= 32
+        {
+            return Target::Ipv6Subnet(ipv6_net);
         }
 
         if let Ok(ipv4) = input.parse::<Ipv4Addr>() {
@@ -47,10 +48,10 @@ impl From<&str> for Target {
             return Target::Ipv6(ipv6);
         }
 
-        if let Ok(url) = input.parse::<Url>() {
-            if let Some(host) = url.host_str() {
-                return Target::Domain(host.trim_end_matches('.').to_string());
-            }
+        if let Ok(url) = input.parse::<Url>()
+            && let Some(host) = url.host_str()
+        {
+            return Target::Domain(host.trim_end_matches('.').to_string());
         }
         Target::Domain(input.trim_end_matches('.').to_string())
     }
diff --git a/querying/src/updater.rs b/querying/src/updater.rs
index 98a2f99..4ac27f7 100644
--- a/querying/src/updater.rs
+++ b/querying/src/updater.rs
@@ -4,30 +4,28 @@ use indicatif::{ProgressBar, ProgressStyle};
 use log::info;
 use reqwest::IntoUrl;
 use std::fmt::Display;
-use std::io;
 use std::io::Error;
 
 pub async fn fetch_db<T: IntoUrl + Display>(url: T) -> Result<Vec<u8>, Error> {
     info!("Fetching {}", url);
     let response = reqwest::get(url)
         .await
-        .map_err(|e| Error::new(io::ErrorKind::Other, e))?
+        .map_err(Error::other)?
         .error_for_status()
-        .map_err(|e| Error::new(io::ErrorKind::Other, e))?;
+        .map_err(Error::other)?;
 
     let total_size = response.content_length().unwrap_or(0);
     let pb = ProgressBar::new(total_size);
     pb.set_style(ProgressStyle::default_bar()
         .template("{spinner:.green} [{elapsed_precise}] [{bar:40.cyan/blue}] {bytes}/{total_bytes} ({eta})")
-        .map_err(|e| Error::new(io::ErrorKind::Other, e))?
+        .map_err(Error::other)?
         .progress_chars("#>-"));
 
-    let mut bytes = Vec::new();
-    bytes.reserve(total_size as usize);
+    let mut bytes = Vec::with_capacity(total_size as usize);
     let mut stream = response.bytes_stream();
 
     while let Some(chunk_result) = stream.next().await {
-        let chunk = chunk_result.map_err(|e| Error::new(io::ErrorKind::Other, e))?;
+        let chunk = chunk_result.map_err(Error::other)?;
         bytes.extend(&chunk);
         pb.inc(chunk.len() as u64);
     }
diff --git a/reporter/src/counter.rs b/reporter/src/counter.rs
index 7f925ce..341b54b 100644
--- a/reporter/src/counter.rs
+++ b/reporter/src/counter.rs
@@ -17,9 +17,9 @@ pub struct Counter {
 impl Counter {
     pub fn save_results(&self, output: &PathBuf) -> anyhow::Result<()> {
         let mut out = csv::WriterBuilder::new().from_path(output)?;
-        out.write_record(&["target", "evidence"])?;
+        out.write_record(["target", "evidence"])?;
         for (target, evidence) in &self.results {
-            out.write_record(&[target, &evidence.to_string()])?;
+            out.write_record([target, &evidence.to_string()])?;
         }
         info!("Saved results to {:?}", output);
         Ok(())
@@ -59,16 +59,51 @@ impl Counter {
 impl Display for Counter {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         let total = self.total();
+        let percentage = |count| {
+            if total == 0 {
+                0.0
+            } else {
+                count as f32 / total as f32 * 100.0
+            }
+        };
         write!(
             f,
             "OK {} ({:.2}%) | Blocked {} (early: {}) ({:.2}%) | Error {} ({:.2}%)",
             self.ok,
-            self.ok as f32 / total as f32 * 100.0,
+            percentage(self.ok),
             self.block,
             self.early,
-            self.block as f32 / total as f32 * 100.0,
+            percentage(self.block),
             self.err,
-            self.err as f32 / total as f32 * 100.0
+            percentage(self.err)
         )
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::Counter;
+    use reports::Evidence;
+
+    #[test]
+    fn empty_counter_uses_zero_percentages() {
+        assert_eq!(
+            Counter::default().to_string(),
+            "OK 0 (0.00%) | Blocked 0 (early: 0) (0.00%) | Error 0 (0.00%)"
+        );
+    }
+
+    #[test]
+    fn counter_tracks_all_evidence_classes() {
+        let mut counter = Counter::default();
+        counter.add("ok.example", Evidence::Ok);
+        counter.add("blocked.example", Evidence::Blocked);
+        counter.add("error.example", Evidence::ConnectError);
+
+        assert_eq!(counter.total(), 3);
+        assert_eq!(
+            counter.to_string(),
+            "OK 1 (33.33%) | Blocked 1 (early: 0) (33.33%) | Error 1 (33.33%)"
+        );
+    }
+}
diff --git a/reporter/src/main.rs b/reporter/src/main.rs
index 1812c24..bc8c947 100644
--- a/reporter/src/main.rs
+++ b/reporter/src/main.rs
@@ -32,6 +32,14 @@ enum Verbosity {
     All,
 }
 
+fn parse_positive_usize(value: &str) -> Result<usize, String> {
+    match value.parse::<usize>() {
+        Ok(value) if value > 0 => Ok(value),
+        Ok(_) => Err("значение должно быть больше нуля".to_string()),
+        Err(error) => Err(format!("некорректное целое число: {error}")),
+    }
+}
+
 #[derive(Parser, Debug, Clone)]
 #[command(
     author,
@@ -57,7 +65,7 @@ struct Args {
     timeout_secs: u64,
 
     /// Maximum concurrent probes. Make sure that it doesn't exceed 'ulimit -n'
-    #[arg(short, long = "probes", default_value_t = 1000)]
+    #[arg(short, long = "probes", default_value_t = 1000, value_parser = parse_positive_usize)]
     probe_count: usize,
 
     /// Display probing results in console
@@ -65,7 +73,7 @@ struct Args {
     verbosity: Verbosity,
 
     /// Attempts to establish connection
-    #[arg(short, long, default_value_t = 2)]
+    #[arg(short, long, default_value_t = 2, value_parser = parse_positive_usize)]
     retry_count: usize,
 
     /// Try using plain HTTP without TLS
@@ -102,7 +110,7 @@ impl Args {
         ReporterConfig {
             http: self.http,
             tx_junk: self.tx,
-            ip: self.ip.clone(),
+            ip: self.ip,
             path: self.path.clone(),
             retry_count: self.retry_count,
             timeout_secs: self.timeout_secs,
@@ -117,10 +125,14 @@ fn build_client(args: &Args, attempt: usize) -> reqwest::Result<Client> {
         .redirect(Policy::none())
         .use_rustls_tls()
         .dns_resolver(Arc::new(Resolver::new(args.ip)))
-        .read_timeout(Duration::from_secs(args.timeout_secs * attempt as u64))
+        .read_timeout(retry_read_timeout(args.timeout_secs, attempt))
         .timeout(Duration::from_secs(15));
 
-    Ok(client.build()?)
+    client.build()
+}
+
+fn retry_read_timeout(timeout_secs: u64, attempt: usize) -> Duration {
+    Duration::from_secs(timeout_secs.saturating_mul(attempt as u64))
 }
 
 #[tokio::main]
@@ -145,7 +157,7 @@ async fn main() -> Result<()> {
     let targets: Vec<String> = targets
         .lines()
         .take(args.count)
-        .map(|s| s.split(",").last().unwrap().to_string())
+        .map(|s| s.split(',').next_back().unwrap().to_string())
         .collect();
 
     info!(
@@ -244,9 +256,9 @@ async fn upload_results(
     let uploaded = uploaded.send().await?;
 
     if uploaded.status().is_success() {
-        info!("Uploaded ({})!", uploaded.status().to_string());
+        info!("Uploaded ({})!", uploaded.status());
     } else {
-        warn!("Upload failed: {}", uploaded.status().to_string());
+        warn!("Upload failed: {}", uploaded.status());
     }
     info!("Agency response: {}", uploaded.text().await?);
     Ok(())
@@ -288,7 +300,7 @@ async fn check_target(args: &Args, target: &str) -> Result<Verdict, reqwest::Err
 
     loop {
         attempts += 1;
-        let client = build_client(&args, 1)?;
+        let client = build_client(args, attempts)?;
         let mut resp = client.get(&url).header("Range", "bytes=0-65536");
         if args.tx {
             resp = resp.body(JUNK)
@@ -341,3 +353,22 @@ async fn check_target(args: &Args, target: &str) -> Result<Verdict, reqwest::Err
         };
     }
 }
+
+#[cfg(test)]
+mod tests {
+    use super::{parse_positive_usize, retry_read_timeout};
+    use std::time::Duration;
+
+    #[test]
+    fn positive_usize_rejects_zero() {
+        assert_eq!(parse_positive_usize("1"), Ok(1));
+        assert!(parse_positive_usize("0").is_err());
+        assert!(parse_positive_usize("not-a-number").is_err());
+    }
+
+    #[test]
+    fn retry_timeout_grows_with_attempt_number() {
+        assert_eq!(retry_read_timeout(5, 1), Duration::from_secs(5));
+        assert_eq!(retry_read_timeout(5, 3), Duration::from_secs(15));
+    }
+}
diff --git a/reporter/src/resolver.rs b/reporter/src/resolver.rs
index caccebb..67a32d7 100644
--- a/reporter/src/resolver.rs
+++ b/reporter/src/resolver.rs
@@ -8,14 +8,14 @@ pub struct Resolver {
 impl Resolver {
     pub fn new(ip: IpAddr) -> Resolver {
         Resolver {
-            ip: SocketAddr::from(SocketAddr::new(ip, 0)),
+            ip: SocketAddr::new(ip, 0),
         }
     }
 }
 
 impl Resolve for Resolver {
     fn resolve(&self, _: Name) -> Resolving {
-        let ip = self.ip.clone();
+        let ip = self.ip;
         Box::pin(async move { Ok(Addrs::from(Box::new(vec![ip].into_iter()))) })
     }
 }
diff --git a/website/src/agency.rs b/website/src/agency.rs
index a4d83ea..23d8ca2 100644
--- a/website/src/agency.rs
+++ b/website/src/agency.rs
@@ -10,6 +10,10 @@ use sqlx::postgres::PgPool;
 
 pub struct Agency {
     pub id: i32,
+    #[expect(
+        dead_code,
+        reason = "поле входит в SQLx offline-запрос; его удаление требует обновления метаданных на эталонной PostgreSQL"
+    )]
     pub name: String,
 }
 
diff --git a/website/src/api/check.rs b/website/src/api/check.rs
index 505cafe..4cb4502 100644
--- a/website/src/api/check.rs
+++ b/website/src/api/check.rs
@@ -58,7 +58,7 @@ pub async fn check(
         .map_err(|_| Status::InternalServerError)?;
 
     let id: Option<String> = if let Ok(check) = &check {
-        match save_query(&mut *db, &target, check, addr, checker.read().await).await {
+        match save_query(&mut db, &target, check, addr, checker.read().await).await {
             Ok(id) => Some(id.to_string()),
             Err(e) => {
                 warn!("api: failed to save check: {:?}", e);
@@ -70,7 +70,7 @@ pub async fn check(
     };
 
     let whitelist: Option<WhitelistedEntry> = if let Target::Domain(domain) = &target {
-        check_whitelist(domain, &mut *db)
+        check_whitelist(domain, &mut db)
             .await
             .map_err(|_| Status::InternalServerError)?
     } else {
diff --git a/website/src/api/probe.rs b/website/src/api/probe.rs
index e05f334..fc97319 100644
--- a/website/src/api/probe.rs
+++ b/website/src/api/probe.rs
@@ -544,7 +544,7 @@ mod tests {
         config.hosts.push(Host {
             id: "test".to_string(),
             host: "192.0.2.1".to_string(),
-            host_type: HostType::Blacklist,
+            host_type: HostType::Whitelist,
             file_path: String::new(),
             timeout_sec: 1,
             min_data: 1,
@@ -567,6 +567,28 @@ mod tests {
         );
     }
 
+    #[test]
+    fn reports_whitelist_when_blacklist_host_returns_data() {
+        let mut config = empty_config();
+        config.hosts.push(Host {
+            id: "test".to_string(),
+            host: "192.0.2.1".to_string(),
+            host_type: HostType::Blacklist,
+            file_path: String::new(),
+            timeout_sec: 1,
+            min_data: 1,
+        });
+        let results = vec![HostProbeResult {
+            host_id: "test".to_string(),
+            probe_evidence: ProbeEvidence::ClientHello,
+        }];
+
+        assert_eq!(
+            build_probe_verdicts(&results, &config, None, None, None, false),
+            vec!["whitelist"]
+        );
+    }
+
     fn empty_config() -> ProbeConfig {
         ProbeConfig {
             version: String::new(),
diff --git a/website/src/db.rs b/website/src/db.rs
index 91d9599..a72df02 100644
--- a/website/src/db.rs
+++ b/website/src/db.rs
@@ -98,7 +98,7 @@ impl<'r> FromRequest<'r> for Agency {
         let mut db = try_outcome!(
             pool.acquire()
                 .await
-                .map_err(|e| Some(e))
+                .map_err(Some)
                 .or_forward(Status::InternalServerError)
         );
         let token = request.headers().get_one("Authorization");
@@ -114,7 +114,7 @@ impl<'r> FromRequest<'r> for Agency {
             sqlx::query!("SELECT id, name FROM reporters WHERE token = $1", token)
                 .fetch_optional(&mut *db)
                 .await
-                .map_err(|e| Some(e))
+                .map_err(Some)
                 .or_forward(Status::InternalServerError)
         );
         agency
@@ -152,7 +152,6 @@ pub async fn check_whitelist(
     )
     .fetch_optional(db)
     .await
-    .into()
 }
 
 #[derive(Debug, Serialize, sqlx::FromRow)]
@@ -190,5 +189,4 @@ ORDER BY b.bin;",
     )
     .fetch_all(db)
     .await
-    .into()
 }
diff --git a/website/src/mqtt.rs b/website/src/mqtt.rs
index b18e130..843043b 100644
--- a/website/src/mqtt.rs
+++ b/website/src/mqtt.rs
@@ -324,7 +324,7 @@ struct ParsedProbeConfig {
 }
 
 fn parse_probe_hosts(contents: &str) -> Result<ParsedProbeConfig, PublishError> {
-    let config: ProbeHostsFile = toml::from_str(&contents).map_err(PublishError::ConfigParse)?;
+    let config: ProbeHostsFile = toml::from_str(contents).map_err(PublishError::ConfigParse)?;
 
     let hosts = config
         .hosts
diff --git a/website/src/whitelist.rs b/website/src/whitelist.rs
index 1f9a211..c8469f9 100644
--- a/website/src/whitelist.rs
+++ b/website/src/whitelist.rs
@@ -39,20 +39,14 @@ pub async fn export_csv(
         }
     };
 
-    let mut db = pool
-        .acquire()
-        .await
-        .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
+    let mut db = pool.acquire().await.map_err(io::Error::other)?;
 
-    let mut stream = db
-        .copy_out_raw(query)
-        .await
-        .map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
+    let mut stream = db.copy_out_raw(query).await.map_err(io::Error::other)?;
 
     let mut data = Vec::default();
 
     while let Some(bytes_result) = stream.next().await {
-        let bytes = bytes_result.map_err(|e| io::Error::new(io::ErrorKind::Other, e))?;
+        let bytes = bytes_result.map_err(io::Error::other)?;
         data.extend(bytes)
     }
 
@@ -75,7 +69,7 @@ pub async fn histogram(
         .await
         .map_err(|_| Status::InternalServerError)?;
     Ok(Json(
-        collect_histogram(&mut *db, 50, limit, filter.is_some())
+        collect_histogram(&mut db, 50, limit, filter.is_some())
             .await
             .map_err(|_| Status::InternalServerError)?,
     ))