diff --git a/archivebox/extractors/__init__.py b/archivebox/extractors/__init__.py
index a4acef0b..15968097 100644
--- a/archivebox/extractors/__init__.py
+++ b/archivebox/extractors/__init__.py
@@ -102,7 +102,7 @@ def archive_link(link: Link, overwrite: bool=False, methods: Optional[Iterable[s
                 if method_name not in link.history:
                     link.history[method_name] = []
 
-                if should_run(link, out_dir) or overwrite:
+                if should_run(link, out_dir, overwrite):
                     log_archive_method_started(method_name)
 
                     result = method_function(link=link, out_dir=out_dir)
diff --git a/archivebox/extractors/archive_org.py b/archivebox/extractors/archive_org.py
index f5598d6f..1f382190 100644
--- a/archivebox/extractors/archive_org.py
+++ b/archivebox/extractors/archive_org.py
@@ -25,12 +25,12 @@ from ..logging_util import TimedProgress
 
 
 @enforce_types
-def should_save_archive_dot_org(link: Link, out_dir: Optional[Path]=None) -> bool:
-    out_dir = out_dir or Path(link.link_dir)
+def should_save_archive_dot_org(link: Link, out_dir: Optional[Path]=None, overwrite: Optional[bool]=False) -> bool:
     if is_static_file(link.url):
         return False
 
-    if (out_dir / "archive.org.txt").exists():
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'archive.org.txt').exists():
         # if open(path, 'r').read().strip() != 'None':
         return False
 
diff --git a/archivebox/extractors/dom.py b/archivebox/extractors/dom.py
index babbe71c..ec2df073 100644
--- a/archivebox/extractors/dom.py
+++ b/archivebox/extractors/dom.py
@@ -20,16 +20,16 @@ from ..logging_util import TimedProgress
 
 
 @enforce_types
-def should_save_dom(link: Link, out_dir: Optional[Path]=None) -> bool:
-    out_dir = out_dir or Path(link.link_dir)
+def should_save_dom(link: Link, out_dir: Optional[Path]=None, overwrite: Optional[bool]=False) -> bool:
     if is_static_file(link.url):
         return False
-    
-    if (out_dir / 'output.html').exists():
+
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'output.html').exists():
         return False
 
     return SAVE_DOM
-    
+
 @enforce_types
 def save_dom(link: Link, out_dir: Optional[Path]=None, timeout: int=TIMEOUT) -> ArchiveResult:
     """print HTML of site to file using chrome --dump-html"""
diff --git a/archivebox/extractors/favicon.py b/archivebox/extractors/favicon.py
index 5e7c1fb0..3a4aeea7 100644
--- a/archivebox/extractors/favicon.py
+++ b/archivebox/extractors/favicon.py
@@ -20,13 +20,13 @@ from ..logging_util import TimedProgress
 
 
 @enforce_types
-def should_save_favicon(link: Link, out_dir: Optional[str]=None) -> bool:
-    out_dir = out_dir or link.link_dir
-    if (Path(out_dir) / 'favicon.ico').exists():
+def should_save_favicon(link: Link, out_dir: Optional[str]=None, overwrite: Optional[bool]=False) -> bool:
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'favicon.ico').exists():
         return False
 
     return SAVE_FAVICON
-    
+
 @enforce_types
 def save_favicon(link: Link, out_dir: Optional[Path]=None, timeout: int=TIMEOUT) -> ArchiveResult:
     """download site favicon from google's favicon api"""
diff --git a/archivebox/extractors/git.py b/archivebox/extractors/git.py
index fd20d4b6..efef37c2 100644
--- a/archivebox/extractors/git.py
+++ b/archivebox/extractors/git.py
@@ -28,12 +28,12 @@ from ..logging_util import TimedProgress
 
 
 @enforce_types
-def should_save_git(link: Link, out_dir: Optional[Path]=None) -> bool:
-    out_dir = out_dir or link.link_dir
+def should_save_git(link: Link, out_dir: Optional[Path]=None, overwrite: Optional[bool]=False) -> bool:
     if is_static_file(link.url):
         return False
 
-    if (out_dir / "git").exists():
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'git').exists():
         return False
 
     is_clonable_url = (
diff --git a/archivebox/extractors/headers.py b/archivebox/extractors/headers.py
index 4e69dec1..91dcb8e3 100644
--- a/archivebox/extractors/headers.py
+++ b/archivebox/extractors/headers.py
@@ -22,11 +22,12 @@ from ..config import (
 from ..logging_util import TimedProgress
 
 @enforce_types
-def should_save_headers(link: Link, out_dir: Optional[str]=None) -> bool:
-    out_dir = out_dir or link.link_dir
+def should_save_headers(link: Link, out_dir: Optional[str]=None, overwrite: Optional[bool]=False) -> bool:
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'headers.json').exists():
+        return False
 
-    output = Path(out_dir or link.link_dir) / 'headers.json'
-    return not output.exists() and SAVE_HEADERS
+    return SAVE_HEADERS
 
 
 @enforce_types
diff --git a/archivebox/extractors/media.py b/archivebox/extractors/media.py
index 3792fd2a..1c0a21ba 100644
--- a/archivebox/extractors/media.py
+++ b/archivebox/extractors/media.py
@@ -21,13 +21,12 @@ from ..logging_util import TimedProgress
 
 
 @enforce_types
-def should_save_media(link: Link, out_dir: Optional[Path]=None) -> bool:
-    out_dir = out_dir or link.link_dir
-
+def should_save_media(link: Link, out_dir: Optional[Path]=None, overwrite: Optional[bool]=False) -> bool:
     if is_static_file(link.url):
         return False
 
-    if (out_dir / "media").exists():
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'media').exists():
         return False
 
     return SAVE_MEDIA
diff --git a/archivebox/extractors/mercury.py b/archivebox/extractors/mercury.py
index 07c02420..d9e32c0a 100644
--- a/archivebox/extractors/mercury.py
+++ b/archivebox/extractors/mercury.py
@@ -37,13 +37,15 @@ def ShellError(cmd: List[str], result: CompletedProcess, lines: int=20) -> Archi
 
 
 @enforce_types
-def should_save_mercury(link: Link, out_dir: Optional[str]=None) -> bool:
-    out_dir = out_dir or link.link_dir
+def should_save_mercury(link: Link, out_dir: Optional[str]=None, overwrite: Optional[bool]=False) -> bool:
     if is_static_file(link.url):
         return False
 
-    output = Path(out_dir or link.link_dir) / 'mercury'
-    return SAVE_MERCURY and MERCURY_VERSION and (not output.exists())
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'mercury').exists():
+        return False
+
+    return SAVE_MERCURY
 
 
 @enforce_types
diff --git a/archivebox/extractors/pdf.py b/archivebox/extractors/pdf.py
index 1b0201e3..7138206c 100644
--- a/archivebox/extractors/pdf.py
+++ b/archivebox/extractors/pdf.py
@@ -19,12 +19,12 @@ from ..logging_util import TimedProgress
 
 
 @enforce_types
-def should_save_pdf(link: Link, out_dir: Optional[Path]=None) -> bool:
-    out_dir = out_dir or Path(link.link_dir)
+def should_save_pdf(link: Link, out_dir: Optional[Path]=None, overwrite: Optional[bool]=False) -> bool:
     if is_static_file(link.url):
         return False
-    
-    if (out_dir / "output.pdf").exists():
+
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'output.pdf').exists():
         return False
 
     return SAVE_PDF
diff --git a/archivebox/extractors/readability.py b/archivebox/extractors/readability.py
index 9da620b4..6e48cd9a 100644
--- a/archivebox/extractors/readability.py
+++ b/archivebox/extractors/readability.py
@@ -46,13 +46,15 @@ def get_html(link: Link, path: Path) -> str:
         return document
 
 @enforce_types
-def should_save_readability(link: Link, out_dir: Optional[str]=None) -> bool:
-    out_dir = out_dir or link.link_dir
+def should_save_readability(link: Link, out_dir: Optional[str]=None, overwrite: Optional[bool]=False) -> bool:
     if is_static_file(link.url):
         return False
 
-    output = Path(out_dir or link.link_dir) / 'readability'
-    return SAVE_READABILITY and READABILITY_VERSION and (not output.exists())
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'readability').exists():
+        return False
+
+    return SAVE_READABILITY
 
 
 @enforce_types
diff --git a/archivebox/extractors/screenshot.py b/archivebox/extractors/screenshot.py
index 325584eb..cc748bf6 100644
--- a/archivebox/extractors/screenshot.py
+++ b/archivebox/extractors/screenshot.py
@@ -20,12 +20,12 @@ from ..logging_util import TimedProgress
 
 
 @enforce_types
-def should_save_screenshot(link: Link, out_dir: Optional[Path]=None) -> bool:
-    out_dir = out_dir or Path(link.link_dir)
+def should_save_screenshot(link: Link, out_dir: Optional[Path]=None, overwrite: Optional[bool]=False) -> bool:
     if is_static_file(link.url):
         return False
-    
-    if (out_dir / "screenshot.png").exists():
+
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'screenshot.png').exists():
         return False
 
     return SAVE_SCREENSHOT
diff --git a/archivebox/extractors/singlefile.py b/archivebox/extractors/singlefile.py
index 2e5c3896..8d9b36be 100644
--- a/archivebox/extractors/singlefile.py
+++ b/archivebox/extractors/singlefile.py
@@ -23,13 +23,15 @@ from ..logging_util import TimedProgress
 
 
 @enforce_types
-def should_save_singlefile(link: Link, out_dir: Optional[Path]=None) -> bool:
-    out_dir = out_dir or Path(link.link_dir)
+def should_save_singlefile(link: Link, out_dir: Optional[Path]=None, overwrite: Optional[bool]=False) -> bool:
     if is_static_file(link.url):
         return False
 
-    output = out_dir / 'singlefile.html'
-    return SAVE_SINGLEFILE and SINGLEFILE_VERSION and (not output.exists())
+    out_dir = out_dir or Path(link.link_dir)
+    if not overwrite and (out_dir / 'singlefile.html').exists():
+        return False
+
+    return SAVE_SINGLEFILE
 
 
 @enforce_types
diff --git a/archivebox/extractors/title.py b/archivebox/extractors/title.py
index 28cb128f..816c0484 100644
--- a/archivebox/extractors/title.py
+++ b/archivebox/extractors/title.py
@@ -61,12 +61,12 @@ class TitleParser(HTMLParser):
 
 
 @enforce_types
-def should_save_title(link: Link, out_dir: Optional[str]=None) -> bool:
-    # if link already has valid title, skip it
-    if link.title and not link.title.lower().startswith('http'):
+def should_save_title(link: Link, out_dir: Optional[str]=None, overwrite: Optional[bool]=False) -> bool:
+    if is_static_file(link.url):
         return False
 
-    if is_static_file(link.url):
+    # if link already has valid title, skip it
+    if not overwrite and link.title and not link.title.lower().startswith('http'):
         return False
 
     return SAVE_TITLE
diff --git a/archivebox/extractors/wget.py b/archivebox/extractors/wget.py
index ec252123..ee8744b2 100644
--- a/archivebox/extractors/wget.py
+++ b/archivebox/extractors/wget.py
@@ -36,10 +36,10 @@ from ..logging_util import TimedProgress
 
 
 @enforce_types
-def should_save_wget(link: Link, out_dir: Optional[Path]=None) -> bool:
+def should_save_wget(link: Link, out_dir: Optional[Path]=None, overwrite: Optional[bool]=False) -> bool:
     output_path = wget_output_path(link)
     out_dir = out_dir or Path(link.link_dir)
-    if output_path and (out_dir / output_path).exists():
+    if not overwrite and output_path and (out_dir / output_path).exists():
         return False
 
     return SAVE_WGET