diff --git a/Cargo.lock b/Cargo.lock
index f0948e6..3a995a1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,7 +4,7 @@ version = 3
 
 [[package]]
 name = "accessibility-rs"
-version = "0.0.64"
+version = "0.1.3"
 dependencies = [
  "accessibility-scraper",
  "accessibility-tree",
@@ -32,7 +32,7 @@ dependencies = [
 
 [[package]]
 name = "accessibility-scraper"
-version = "0.0.12"
+version = "0.0.14"
 dependencies = [
  "ahash",
  "cssparser 0.27.2",
@@ -50,7 +50,7 @@ dependencies = [
 
 [[package]]
 name = "accessibility-tree"
-version = "0.0.12"
+version = "0.0.14"
 dependencies = [
  "accessibility-scraper",
  "atomic_refcell",
@@ -1378,9 +1378,9 @@ dependencies = [
 
 [[package]]
 name = "grid"
-version = "0.13.0"
+version = "0.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d196ffc1627db18a531359249b2bf8416178d84b729f3cebeb278f285fb9b58c"
+checksum = "be136d9dacc2a13cc70bb6c8f902b414fb2641f8db1314637c6b7933411a8f82"
 
 [[package]]
 name = "h2"
@@ -3540,9 +3540,9 @@ dependencies = [
 
 [[package]]
 name = "taffy"
-version = "0.4.4"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9ec17858c2d465b2f734b798b920818a974faf0babb15d7fef81818a4b2d16f1"
+checksum = "e8b61630cba2afd2c851821add2e1bb1b7851a2436e839ab73b56558b009035e"
 dependencies = [
  "arrayvec",
  "grid",
diff --git a/Cargo.toml b/Cargo.toml
index bf32865..59da509 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,6 +12,6 @@ members = [
 smallvec = "1"
 selectors = "0.22.0"
 cssparser = "0.27.0"
-fast_html5ever = "0.26.1"
+fast_html5ever = "0.26.6"
 ego-tree = "0.6.2"
 lazy_static = "1.4"
\ No newline at end of file
diff --git a/README.md b/README.md
index d5f2b98..7577b78 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ The Rust web accessibility engine.
 
 ```toml
 [dependencies]
-accessibility-rs = "^0.0.64"
+accessibility-rs = "^0.1.0"
 ```
 
 ```rs
@@ -32,7 +32,7 @@ With the Tokio runtime.
 
 ```toml
 [dependencies]
-accessibility-rs = { version = "^0.0.64", features = ["tokio"]}
+accessibility-rs = { version = "^0.1.0", features = ["tokio"]}
 ```
 
 ```rs
@@ -60,7 +60,7 @@ With the Spider full website crawling.
 
 ```toml
 [dependencies]
-accessibility-rs = { version = "^0.0.64", features = ["spider"]}
+accessibility-rs = { version = "^0.1.0", features = ["spider"]}
 ```
 
 ```rs
@@ -87,6 +87,7 @@ async fn main() {
 1. i18n support for multiple languages.
 1. Re-creating layout tree to get element position coordinates.
 1. Crawling full websites lightning-fast using [spider](https://github.com/spider-rs/spider).
+1. Low-level built to be used as an engine in browsers.
 
 ## [Benchmarks](./benches/)
 
diff --git a/accessibility-rs/Cargo.toml b/accessibility-rs/Cargo.toml
index d6272a4..51f6244 100644
--- a/accessibility-rs/Cargo.toml
+++ b/accessibility-rs/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "accessibility-rs"
-version = "0.0.64"
+version = "0.1.3"
 authors = ["The A11yWatch Project Developers", "Jeff Mendez <jeff@a11ywatch.com>"]
 edition = "2021"
 license = "MIT OR Apache-2.0"
@@ -12,11 +12,11 @@ include = ["/src", "../LICENSE_MIT", "../LICENSE_APACHE", "../README.md", "local
 
 [dependencies]
 lazy_static = { workspace = true }
-accessibility-scraper = { version = "0.0.12", features = ["main"], default-features = false, path = "../accessibility-scraper" }
-accessibility-tree = { version = "0.0.12", path = "../accessibility-tree/victor" }
+accessibility-scraper = { version = "0.0.14", features = ["main"], default-features = false, path = "../accessibility-scraper" }
+accessibility-tree = { version = "0.0.14", path = "../accessibility-tree/victor" }
 getrandom = { version = "0.2", features = ["js"] }
-taffy = { version = "0.4.0" }
-serde = { version = "1.0", features = ["derive"] }
+taffy = { version = "0.5" }
+serde = { version = "1", features = ["derive"] }
 selectors = { workspace = true }
 smallvec = { workspace = true }
 ego-tree = { workspace = true }
@@ -29,7 +29,7 @@ contrast = "0.1"
 rgb = "0.8"
 rayon = { version = "1", optional = true }
 crossbeam-channel = { version = "0.5", optional = true }
-tokio = { version = "1", features = ["macros"], optional = true }
+tokio = { version = "1", features = ["macros", "rt-multi-thread", "parking_lot"], optional = true }
 tokio-stream = { version = "0.1", optional = true }
 spider = { version = "1.98.2", optional = true }
 
diff --git a/accessibility-rs/src/integration_test.rs b/accessibility-rs/src/integration_test.rs
index 68d0014..5ca365f 100644
--- a/accessibility-rs/src/integration_test.rs
+++ b/accessibility-rs/src/integration_test.rs
@@ -6,7 +6,7 @@ use mocks::mock;
 
 #[test]
 fn _audit() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_WEBSITE_HTML,
         &mock::MOCK_CSS_RULES,
         false,
@@ -17,7 +17,7 @@ fn _audit() {
 
 #[test]
 fn _audit_large() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_HTML_LARGE_PAGE,
         &mock::MOCK_CSS_RULES_LARGE,
         false,
@@ -28,7 +28,7 @@ fn _audit_large() {
 
 #[test]
 fn _audit_bounded() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_WEBSITE_HTML,
         &mock::MOCK_CSS_RULES,
         true,
@@ -39,7 +39,7 @@ fn _audit_bounded() {
 
 #[test]
 fn _audit_large_bounded() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_HTML_LARGE_PAGE,
         &mock::MOCK_CSS_RULES_LARGE,
         true,
diff --git a/accessibility-rs/src/lib.rs b/accessibility-rs/src/lib.rs
index 5bf8a7d..81db77a 100644
--- a/accessibility-rs/src/lib.rs
+++ b/accessibility-rs/src/lib.rs
@@ -61,9 +61,9 @@ pub use spider;
 pub mod engine;
 /// locales for translations.
 pub mod i18n;
-
 use crate::engine::audit::auditor::Auditor;
 use crate::engine::issue::Issue;
+pub use accessibility_scraper;
 use accessibility_scraper::ElementRef;
 
 i18n!("locales", fallback = "en");
@@ -253,7 +253,7 @@ pub async fn audit(config: AuditConfig) -> AuditResults {
 
 /// audit a web page passing the html and css rules.
 #[cfg(not(feature = "tokio"))]
-pub fn audit(config: AuditConfig) -> Vec<Issue> {
+pub fn audit(config: &AuditConfig) -> Vec<Issue> {
     let document = accessibility_scraper::Html::parse_document(&config.html);
     let auditor = Auditor::new(&document, &config.css, config.bounding_box, &config.locale);
     engine::audit::wcag::WCAGAAA::audit(auditor)
diff --git a/accessibility-rs/tests/integration_test.rs b/accessibility-rs/tests/integration_test.rs
index 56469c9..47023f8 100644
--- a/accessibility-rs/tests/integration_test.rs
+++ b/accessibility-rs/tests/integration_test.rs
@@ -7,7 +7,7 @@ use mocks::mock;
 #[cfg(feature = "tokio")]
 #[tokio::test]
 async fn _audit() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_WEBSITE_HTML,
         &mock::MOCK_CSS_RULES,
         false,
@@ -20,7 +20,7 @@ async fn _audit() {
 #[test]
 #[cfg(not(feature = "tokio"))]
 fn _audit() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_WEBSITE_HTML,
         &mock::MOCK_CSS_RULES,
         false,
@@ -32,7 +32,7 @@ fn _audit() {
 #[test]
 #[cfg(not(feature = "tokio"))]
 fn _audit_large() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_HTML_LARGE_PAGE,
         &mock::MOCK_CSS_RULES_LARGE,
         false,
@@ -44,7 +44,7 @@ fn _audit_large() {
 #[test]
 #[cfg(not(feature = "tokio"))]
 fn _audit_with_layout() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_WEBSITE_HTML,
         &mock::MOCK_CSS_RULES,
         true,
@@ -56,7 +56,7 @@ fn _audit_with_layout() {
 #[test]
 #[cfg(not(feature = "tokio"))]
 fn _audit_large_with_layout() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_HTML_LARGE_PAGE,
         &mock::MOCK_CSS_RULES_LARGE,
         true,
@@ -68,7 +68,7 @@ fn _audit_large_with_layout() {
 #[test]
 #[cfg(not(feature = "tokio"))]
 fn _audit_xlarge() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_WEBSITE_XLARGE_HTML,
         &mock::MOCK_CSS_RULES_XLARGE,
         false,
@@ -80,7 +80,7 @@ fn _audit_xlarge() {
 #[tokio::test]
 #[cfg(feature = "tokio")]
 async fn _audit_xlarge() {
-    let report = accessibility_rs::audit(AuditConfig::new(
+    let report = accessibility_rs::audit(&AuditConfig::new(
         mock::MOCK_WEBSITE_XLARGE_HTML,
         &mock::MOCK_CSS_RULES_XLARGE,
         false,
@@ -94,6 +94,6 @@ async fn _audit_xlarge() {
 #[tokio::test]
 async fn _audit_website() {
     let audit_config = AuditConfig::new_website("https://choosealicense.com", "", false, "");
-    let report = accessibility_rs::audit(audit_config).await;
+    let report = accessibility_rs::audit(&audit_config).await;
     println!("{:?}", report)
 }
diff --git a/accessibility-rs/tests/unit/anchor.rs b/accessibility-rs/tests/unit/anchor.rs
index 5cb9360..eda2ccb 100644
--- a/accessibility-rs/tests/unit/anchor.rs
+++ b/accessibility-rs/tests/unit/anchor.rs
@@ -7,7 +7,7 @@ use maud::html;
 #[cfg(not(feature = "tokio"))]
 /// anchor contains single img element without alt
 fn _audit_missing_alt_anchor_img() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
     <head>     
        <title>Decrative Img: Do not use!</title>
@@ -33,7 +33,7 @@ fn _audit_missing_anchor_content_valid_href() {
     let markup = html! {
         a href="www.example.com";
     };
-    let audit = accessibility_rs::audit(AuditConfig::basic(&markup.into_string()));
+    let audit = accessibility_rs::audit(&AuditConfig::basic(&markup.into_string()));
     let valid = !audit
         .iter()
         .any(|x| x.code == "WCAGAAA.Principle4.Guideline4_1.H91");
@@ -48,7 +48,7 @@ fn _audit_missing_anchor_content() {
     let markup = html! {
         a { "" }
     };
-    let audit = accessibility_rs::audit(AuditConfig::basic(&markup.into_string()));
+    let audit = accessibility_rs::audit(&AuditConfig::basic(&markup.into_string()));
     let valid = !audit
         .iter()
         .any(|x| x.code == "WCAGAAA.Principle4.Guideline4_1.H91");
@@ -60,7 +60,7 @@ fn _audit_missing_anchor_content() {
 #[cfg(not(feature = "tokio"))]
 /// anchor text matches img alt
 fn _audit_img_alt_matches_text_anchor() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
     <head>     
        <title>Decrative Img: Do not use!</title>
diff --git a/accessibility-rs/tests/unit/applet.rs b/accessibility-rs/tests/unit/applet.rs
index a249fa1..cf4e42f 100644
--- a/accessibility-rs/tests/unit/applet.rs
+++ b/accessibility-rs/tests/unit/applet.rs
@@ -6,7 +6,7 @@ use accessibility_rs::AuditConfig;
 #[cfg(not(feature = "tokio"))]
 /// missing applet alt
 fn _audit_missing_applet_alt() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html lang="en">
        <head>     
           <title>Missing applet alt: Do not use this!</title>
@@ -34,7 +34,7 @@ fn _audit_missing_applet_alt() {
 #[cfg(not(feature = "tokio"))]
 /// missing applet body
 fn _audit_missing_applet_body() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html lang="en">
        <head>     
           <title>Missing applet alt: Do not use this!</title>
diff --git a/accessibility-rs/tests/unit/area.rs b/accessibility-rs/tests/unit/area.rs
index ea90eef..8e3df76 100644
--- a/accessibility-rs/tests/unit/area.rs
+++ b/accessibility-rs/tests/unit/area.rs
@@ -14,7 +14,7 @@ fn _audit_missing_alt_area() {
       <area shape="circle" coords="337,300,44" alt="Cup of coffee" href="coffee.htm">
     </map>"#;
     let audit: Vec<accessibility_rs::engine::issue::Issue> =
-        accessibility_rs::audit(AuditConfig::basic(html));
+        accessibility_rs::audit(&AuditConfig::basic(html));
 
     let valid = audit
         .iter()
@@ -35,7 +35,7 @@ fn _audit_missing_alt_map() {
       <area shape="circle" coords="337,300,44" alt="Cup of coffee" href="coffee.htm">
     </map>"#;
     let audit: Vec<accessibility_rs::engine::issue::Issue> =
-        accessibility_rs::audit(AuditConfig::basic(html));
+        accessibility_rs::audit(&AuditConfig::basic(html));
 
     let valid = audit.iter().any(|x| x.message == "1_1_1_H24.ImageMapNoAlt");
 
diff --git a/accessibility-rs/tests/unit/contrast.rs b/accessibility-rs/tests/unit/contrast.rs
index 8c879f6..844adb5 100644
--- a/accessibility-rs/tests/unit/contrast.rs
+++ b/accessibility-rs/tests/unit/contrast.rs
@@ -12,7 +12,7 @@ fn _audit_contrast_text_anchor() {
             a href="www.example.com" style="color:blue;" { "example" };
         }
     };
-    let audit = accessibility_rs::audit(AuditConfig::basic(&markup.into_string()));
+    let audit = accessibility_rs::audit(&AuditConfig::basic(&markup.into_string()));
 
     let valid = !audit
         .iter()
diff --git a/accessibility-rs/tests/unit/fieldset.rs b/accessibility-rs/tests/unit/fieldset.rs
index fc8d367..050f4d7 100644
--- a/accessibility-rs/tests/unit/fieldset.rs
+++ b/accessibility-rs/tests/unit/fieldset.rs
@@ -15,7 +15,7 @@ fn _audit_missing_fieldset_legend() {
         }
     };
 
-    let audit = accessibility_rs::audit(AuditConfig::basic(&m.into_string()));
+    let audit = accessibility_rs::audit(&AuditConfig::basic(&m.into_string()));
 
     let valid = !audit
         .iter()
diff --git a/accessibility-rs/tests/unit/heading.rs b/accessibility-rs/tests/unit/heading.rs
index 23569ef..679cd9d 100644
--- a/accessibility-rs/tests/unit/heading.rs
+++ b/accessibility-rs/tests/unit/heading.rs
@@ -6,7 +6,7 @@ use accessibility_rs::AuditConfig;
 #[cfg(not(feature = "tokio"))]
 /// empty headings
 fn _audit_headings_empty() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
     <head>     
        <title>Valid headings</title>
@@ -48,7 +48,7 @@ fn _audit_headings_empty() {
 
     assert_eq!(valid, true);
 
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
     <head>     
        <title>Do not use missing Headings conent.</title>
diff --git a/accessibility-rs/tests/unit/img.rs b/accessibility-rs/tests/unit/img.rs
index 59e5cf0..efd0c30 100644
--- a/accessibility-rs/tests/unit/img.rs
+++ b/accessibility-rs/tests/unit/img.rs
@@ -5,7 +5,7 @@ use accessibility_rs::AuditConfig;
 #[cfg(not(feature = "tokio"))]
 /// img is missing an alt
 fn _audit_img_missing_alt() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
     <head>     
        <title>Missing Alt: Do not Use.</title>
@@ -31,7 +31,7 @@ fn _audit_img_missing_alt() {
 #[cfg(not(feature = "tokio"))]
 /// img is missing an alt
 fn _audit_form_submit_img_missing_alt() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
     <head>     
        <title>Missing Alt: Do not Use.</title>
@@ -60,7 +60,7 @@ fn _audit_form_submit_img_missing_alt() {
 #[cfg(not(feature = "tokio"))]
 /// img has empty alt and title
 fn _audit_form_submit_img_has_alt_and_title() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
     <head>     
        <title>Contains Title with Alt: Do not Use.</title>
diff --git a/accessibility-rs/tests/unit/input.rs b/accessibility-rs/tests/unit/input.rs
index 2d8bf39..0fb1526 100644
--- a/accessibility-rs/tests/unit/input.rs
+++ b/accessibility-rs/tests/unit/input.rs
@@ -5,7 +5,7 @@ use accessibility_rs::AuditConfig;
 #[cfg(not(feature = "tokio"))]
 /// input is missing a valid name
 fn _audit_input_valid_name() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html lang="en">
     <head>     
        <title>Missing Form control name: Do not Use.</title>
diff --git a/accessibility-rs/tests/unit/label.rs b/accessibility-rs/tests/unit/label.rs
index 0f140cd..9a00c96 100644
--- a/accessibility-rs/tests/unit/label.rs
+++ b/accessibility-rs/tests/unit/label.rs
@@ -12,7 +12,7 @@ fn _audit_label_valid_name() {
         label for="accessibility" { "My label" }
     };
 
-    let audit = accessibility_rs::audit(AuditConfig::basic(&markup.into_string()));
+    let audit = accessibility_rs::audit(&AuditConfig::basic(&markup.into_string()));
 
     let valid = !audit
         .iter()
@@ -30,7 +30,7 @@ fn _audit_label_id_noexist() {
         input type="text" placeholder="Accessibility rocks!" value="Here";
     };
 
-    let audit = accessibility_rs::audit(AuditConfig::basic(&markup.into_string()));
+    let audit = accessibility_rs::audit(&AuditConfig::basic(&markup.into_string()));
 
     let valid = !audit
         .iter()
diff --git a/accessibility-rs/tests/unit/meta.rs b/accessibility-rs/tests/unit/meta.rs
index 0947015..cebe643 100644
--- a/accessibility-rs/tests/unit/meta.rs
+++ b/accessibility-rs/tests/unit/meta.rs
@@ -8,7 +8,7 @@ use crate::mocks::mock;
 #[cfg(not(feature = "tokio"))]
 /// missing title element
 fn _audit_missing_title() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(mock::MOCK_WEBSITE_HTML));
+    let audit = accessibility_rs::audit(&AuditConfig::basic(mock::MOCK_WEBSITE_HTML));
     let mut valid = true;
 
     for x in &audit {
@@ -25,7 +25,7 @@ fn _audit_missing_title() {
 #[cfg(not(feature = "tokio"))]
 /// meta refresh redirect
 fn _audit_meta_refresh() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
        <head>     
           <title>Do not use this!</title>     
@@ -53,7 +53,7 @@ fn _audit_meta_refresh() {
 
     assert_eq!(valid, false);
 
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
 <head>     
   <title>HTML Techniques for WCAG 2.0</title>     
@@ -79,7 +79,7 @@ fn _audit_meta_refresh() {
 #[cfg(not(feature = "tokio"))]
 /// no blink elements
 fn _audit_blink_found() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
 <head>     
    <title>Do not use this!</title>      
@@ -105,7 +105,7 @@ fn _audit_blink_found() {
 #[cfg(not(feature = "tokio"))]
 /// iframe missing title
 fn _iframe_missing_title() {
-    let audit = accessibility_rs::audit(AuditConfig {
+    let audit = accessibility_rs::audit(&AuditConfig {
         html: r###"<html xmlns="http://www.w3.org/1999/xhtml">
         <head>
           <title>A simple frameset document</title>
@@ -156,7 +156,7 @@ fn _iframe_missing_title() {
         false,
         "en",
     );
-    let audit = accessibility_rs::audit(config);
+    let audit = accessibility_rs::audit(&config);
     let mut valid = true;
 
     for x in &audit {
@@ -182,7 +182,7 @@ fn _iframe_missing_title() {
         "en",
     );
 
-    let audit = accessibility_rs::audit(config);
+    let audit = accessibility_rs::audit(&config);
     let mut valid = true;
 
     for x in &audit {
@@ -199,7 +199,7 @@ fn _iframe_missing_title() {
 #[cfg(not(feature = "tokio"))]
 /// incorrect xml:lang
 fn _xml_lang_incorrect_format() {
-    let audit = accessibility_rs::audit(AuditConfig::basic(
+    let audit = accessibility_rs::audit(&AuditConfig::basic(
         r###"<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en_3">
 <head>     
    <title>Do not use this!</title>      
diff --git a/accessibility-scraper/Cargo.toml b/accessibility-scraper/Cargo.toml
index 93d8e6f..2d452ae 100644
--- a/accessibility-scraper/Cargo.toml
+++ b/accessibility-scraper/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "accessibility-scraper"
-version = "0.0.12"
+version = "0.0.14"
 edition = "2021"
 description = "HTML parsing and querying with CSS selectors with CSS binding styles to elements."
 keywords = ["html", "css", "selector", "scraping"]
@@ -11,6 +11,7 @@ authors = [
 license = "ISC"
 repository = "https://github.com/a11ywatch/accessibility-rs"
 readme = "README.md"
+
 [dependencies]
 cssparser = { workspace = true }
 ego-tree = { workspace = true }
@@ -21,8 +22,8 @@ tendril = "0.4.3"
 ahash = "0.8"
 indexmap = { version = "2.0.0", optional = true }
 once_cell = "1.0"
-tokio-stream = { version = "0.1.15", optional = true }
-tokio = { version = "1.36.0", features = ["macros"], optional = true }
+tokio-stream = { version = "0.1", optional = true }
+tokio = { version = "1", features = ["macros", "rt-multi-thread", "parking_lot"], optional = true }
 
 [dependencies.getopts]
 version = "0.2.21"
diff --git a/accessibility-tree/victor/Cargo.toml b/accessibility-tree/victor/Cargo.toml
index be4db0d..61516b2 100644
--- a/accessibility-tree/victor/Cargo.toml
+++ b/accessibility-tree/victor/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "accessibility-tree"
-version = "0.0.12"
+version = "0.0.14"
 authors = ["Jeff Mendez <jeff@a11ywatch.com"]
 license = "MIT OR Apache-2.0"
 description = "Accessibility tree binding CSS styles and vectors to elements. Used mainly for accessibility-rs crate."
@@ -22,13 +22,13 @@ lock_api = "0.1"
 num-traits = "0.2"
 rayon = "1"
 rayon_croissant = "0.1.1"
-accessibility-scraper = { version = "0.0.12", features = ["main"], default-features = false, path = "../../accessibility-scraper" }
+accessibility-scraper = { version = "0.0.14", features = ["main"], default-features = false, path = "../../accessibility-scraper" }
 selectors = { workspace = true }
 smallbitvec = "2.4"
 smallvec = { workspace = true }
 victor-tree-internal-proc-macros = {path = "../proc-macros", version = "0.0.1"}
 xi-unicode = "0.1"
-xml-rs = {package = "xml-rs", version = "0.8"}
+xml-rs = { package = "xml-rs", version = "0.8" }
 
 [features]
 tokio = ["accessibility-scraper/tokio"]
diff --git a/benches/audit.rs b/benches/audit.rs
index 9ad9fe6..5f15a1e 100644
--- a/benches/audit.rs
+++ b/benches/audit.rs
@@ -10,19 +10,23 @@ pub fn bench_speed(c: &mut Criterion) {
     group.sample_size(50);
 
     group.bench_function(format!("audit: {}", "small html"), |b| {
-        b.iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_SMALL_HTML))))
+        b.iter(|| black_box(audit(&AuditConfig::basic(mock::MOCK_WEBSITE_SMALL_HTML))))
     });
 
     group.bench_function(format!("audit: {}", "medium html"), |b| {
-        b.iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_A11YWATCH_HTML))))
+        b.iter(|| {
+            black_box(audit(&AuditConfig::basic(
+                mock::MOCK_WEBSITE_A11YWATCH_HTML,
+            )))
+        })
     });
 
     group.bench_function(format!("audit: {}", "medium-large html"), |b| {
-        b.iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_HTML))))
+        b.iter(|| black_box(audit(&AuditConfig::basic(mock::MOCK_WEBSITE_HTML))))
     });
 
     group.bench_function(format!("audit: {}", "large-xlarge html"), |b| {
-        b.iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_LARGE_HTML))))
+        b.iter(|| black_box(audit(&AuditConfig::basic(mock::MOCK_WEBSITE_LARGE_HTML))))
     });
 
     group.finish();
@@ -36,22 +40,25 @@ pub fn bench_speed(c: &mut Criterion) {
 
     group.bench_function(format!("audit: {}", "small html"), |b| {
         b.to_async(&rt)
-            .iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_SMALL_HTML))))
+            .iter(|| black_box(audit(&AuditConfig::basic(mock::MOCK_WEBSITE_SMALL_HTML))))
     });
 
     group.bench_function(format!("audit: {}", "medium html"), |b| {
-        b.to_async(&rt)
-            .iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_A11YWATCH_HTML))))
+        b.to_async(&rt).iter(|| {
+            black_box(audit(&AuditConfig::basic(
+                mock::MOCK_WEBSITE_A11YWATCH_HTML,
+            )))
+        })
     });
 
     group.bench_function(format!("audit: {}", "medium-large html"), |b| {
         b.to_async(&rt)
-            .iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_HTML))))
+            .iter(|| black_box(audit(&AuditConfig::basic(mock::MOCK_WEBSITE_HTML))))
     });
 
     group.bench_function(format!("audit: {}", "large-xlarge html"), |b| {
         b.to_async(&rt)
-            .iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_LARGE_HTML))))
+            .iter(|| black_box(audit(&AuditConfig::basic(mock::MOCK_WEBSITE_LARGE_HTML))))
     });
 
     group.finish();
@@ -65,31 +72,34 @@ pub fn bench_speed(c: &mut Criterion) {
 
     group.bench_function(format!("audit: {}", "small html"), |b| {
         b.to_async(&rt)
-            .iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_SMALL_HTML))))
+            .iter(|| black_box(audit(&AuditConfig::basic(mock::MOCK_WEBSITE_SMALL_HTML))))
     });
 
     group.bench_function(format!("audit: {}", "medium html"), |b| {
-        b.to_async(&rt)
-            .iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_A11YWATCH_HTML))))
+        b.to_async(&rt).iter(|| {
+            black_box(audit(&AuditConfig::basic(
+                mock::MOCK_WEBSITE_A11YWATCH_HTML,
+            )))
+        })
     });
 
     group.bench_function(format!("audit: {}", "medium-large html"), |b| {
         b.to_async(&rt)
-            .iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_HTML))))
+            .iter(|| black_box(audit(&AuditConfig::basic(mock::MOCK_WEBSITE_HTML))))
     });
 
     group.bench_function(format!("audit: {}", "large-xlarge html"), |b| {
         b.to_async(&rt)
-            .iter(|| black_box(audit(AuditConfig::basic(mock::MOCK_WEBSITE_LARGE_HTML))))
+            .iter(|| black_box(audit(&AuditConfig::basic(mock::MOCK_WEBSITE_LARGE_HTML))))
     });
 
     group.bench_function(format!("audit: {}", "spider audit html"), |b| {
         b.to_async(&rt).iter(|| {
-            black_box(audit(AuditConfig::new_website(
+            black_box(audit(&AuditConfig::new_website(
                 "https://choosealicense.com",
                 "",
                 false,
-                ""
+                "",
             )))
         })
     });