diff --git a/fuji_server/data/metadata_standards_uris.json b/fuji_server/data/metadata_standards_uris.json
index 752abdb6..25a48cb0 100644
--- a/fuji_server/data/metadata_standards_uris.json
+++ b/fuji_server/data/metadata_standards_uris.json
@@ -7668,27 +7668,6 @@
     ],
     "title": "EAD (Encoded Archival Description)"
   },
-  "https://ogp.me": {
-    "acronym": "OpenGraph",
-    "field_of_science": [],
-    "id": "opengraph",
-    "identifier": [
-      {
-        "type": "local",
-        "value": "fuji:m46"
-      },
-      {
-        "type": "homepage",
-        "value": "https://ogp.me"
-      },
-      {
-        "type": "namespace",
-        "value": "https://ogp.me/ns#"
-      }
-    ],
-    "subject_areas": null,
-    "title": "The Open Graph protocol metadata format"
-  },
   "http://a9.com/-/spec/opensearch/1.1/": {
     "acronym": null,
     "field_of_science": [],
@@ -38198,6 +38177,27 @@
     ],
     "title": "ETD-MS an Interoperability Metadata Standard for Electronic Theses and Dissertations"
   },
+  "https://ogp.me": {
+    "acronym": "OpenGraph",
+    "field_of_science": [],
+    "id": "opengraph",
+    "identifier": [
+      {
+        "type": "local",
+        "value": "fuji:m46"
+      },
+      {
+        "type": "homepage",
+        "value": "https://ogp.me"
+      },
+      {
+        "type": "namespace",
+        "value": "https://ogp.me/ns#"
+      }
+    ],
+    "subject_areas": null,
+    "title": "The Open Graph protocol metadata format"
+  },
   "https://ogp.me/ns#": {
     "acronym": "OpenGraph",
     "field_of_science": [],
diff --git a/fuji_server/evaluators/fair_evaluator_formal_metadata.py b/fuji_server/evaluators/fair_evaluator_formal_metadata.py
index 192aff60..273ece50 100644
--- a/fuji_server/evaluators/fair_evaluator_formal_metadata.py
+++ b/fuji_server/evaluators/fair_evaluator_formal_metadata.py
@@ -138,7 +138,7 @@ def testExternalStructuredMetadataAvailable(self):
                     sparql_provider = SPARQLMetadataProvider(
                         endpoint=self.fuji.sparql_endpoint, logger=self.logger, metric_id=self.metric_identifier
                     )
-                    if self.fuji.pid_url == None:
+                    if self.fuji.pid_url is None:
                         url_to_sparql = self.fuji.landing_url
                     else:
                         url_to_sparql = self.fuji.pid_url
diff --git a/fuji_server/evaluators/fair_evaluator_license.py b/fuji_server/evaluators/fair_evaluator_license.py
index dfafa62d..8d54c901 100644
--- a/fuji_server/evaluators/fair_evaluator_license.py
+++ b/fuji_server/evaluators/fair_evaluator_license.py
@@ -40,20 +40,20 @@ def setLicenseDataAndOutput(self):
         if isinstance(specified_licenses, str):  # licenses maybe string or list depending on metadata schemas
             specified_licenses = [specified_licenses]
         if specified_licenses is not None and specified_licenses != []:
-            for l in specified_licenses:
+            for license in specified_licenses:
                 isurl = False
                 licence_valid = False
                 license_output = LicenseOutputInner()
-                if isinstance(l, str):
-                    isurl = idutils.is_url(l)
+                if isinstance(license, str):
+                    isurl = idutils.is_url(license)
                     if isurl:
-                        iscc, generic_cc = self.isCreativeCommonsLicense(l, self.metric_identifier)
+                        iscc, generic_cc = self.isCreativeCommonsLicense(license, self.metric_identifier)
                         if iscc:
-                            l = generic_cc
-                        spdx_uri, spdx_osi, spdx_id = self.lookup_license_by_url(l, self.metric_identifier)
+                            license = generic_cc
+                        spdx_uri, spdx_osi, spdx_id = self.lookup_license_by_url(license, self.metric_identifier)
                     else:  # maybe licence name
-                        spdx_uri, spdx_osi, spdx_id = self.lookup_license_by_name(l, self.metric_identifier)
-                    license_output.license = l
+                        spdx_uri, spdx_osi, spdx_id = self.lookup_license_by_name(license, self.metric_identifier)
+                    license_output.license = license
                     if spdx_uri:
                         licence_valid = True
                     license_output.details_url = spdx_uri
@@ -61,7 +61,7 @@ def setLicenseDataAndOutput(self):
                     self.output.append(license_output)
                     self.license_info.append(
                         {
-                            "license": l,
+                            "license": license,
                             "id": spdx_id,
                             "is_url": isurl,
                             "spdx_uri": spdx_uri,
@@ -204,14 +204,14 @@ def testLicenseIsValidAndSPDXRegistered(self):
                     )
                 )
             if self.license_info:
-                for l in self.license_info:
+                for license in self.license_info:
                     if test_required:
                         for rq_license_id in test_required:
-                            if l.get("id"):
-                                if fnmatch.fnmatch(l.get("id"), rq_license_id):
+                            if license.get("id"):
+                                if fnmatch.fnmatch(license.get("id"), rq_license_id):
                                     test_status = True
                     else:
-                        if l.get("valid"):
+                        if license.get("valid"):
                             test_status = True
             else:
                 self.logger.warning(
diff --git a/fuji_server/harvester/data_harvester.py b/fuji_server/harvester/data_harvester.py
index c2bd46cf..d383aa97 100644
--- a/fuji_server/harvester/data_harvester.py
+++ b/fuji_server/harvester/data_harvester.py
@@ -95,7 +95,7 @@ def retrieve_all_data(self, scan_content=True):
                             fl["size"] = None
                     else:
                         fl["size"] = None
-                    if fl.get("type") == None:
+                    if fl.get("type") is None:
                         if fl["trust"] > 1:
                             fl["trust"] -= 1
                     elif "/" in str(fl.get("type")):
diff --git a/fuji_server/harvester/metadata_harvester.py b/fuji_server/harvester/metadata_harvester.py
index 48f3f88e..1e48d62f 100644
--- a/fuji_server/harvester/metadata_harvester.py
+++ b/fuji_server/harvester/metadata_harvester.py
@@ -150,7 +150,7 @@ def merge_metadata(self, metadict, url, method, format, mimetype, schema="", nam
                         "FsF-F2-01M : Harvesting of this metadata is explicitely disabled in the metric configuration-:"
                         + str(metadata_standard)
                     )
-            if isinstance(metadict, dict) and allow_merge == True:
+            if isinstance(metadict, dict) and allow_merge is True:
                 # self.metadata_sources.append((method_source, 'negotiated'))
                 for r in metadict.keys():
                     if r in self.reference_elements:
@@ -246,14 +246,14 @@ def merge_metadata(self, metadict, url, method, format, mimetype, schema="", nam
             print("Metadata Merge Error: " + str(e), format, mimetype, schema)
 
     def exclude_null(self, dt):
-        if type(dt) is dict:
+        if isinstance(dt, dict):
             return dict((k, self.exclude_null(v)) for k, v in dt.items() if v and self.exclude_null(v))
-        elif type(dt) is list:
+        elif isinstance(dt, list):
             try:
                 return list(set([self.exclude_null(v) for v in dt if v and self.exclude_null(v)]))
             except Exception:
                 return [self.exclude_null(v) for v in dt if v and self.exclude_null(v)]
-        elif type(dt) is str:
+        elif isinstance(dt, str):
             return dt.strip()
         else:
             return dt
@@ -321,7 +321,7 @@ def check_pidtest_repeat(self):
                         validated = False
                     if idhelper.is_persistent and validated:
                         found_pids[found_id_scheme] = idhelper.get_identifier_url()
-                if len(found_pids) >= 1 and self.repeat_pid_check == False:
+                if len(found_pids) >= 1 and self.repeat_pid_check is False:
                     self.logger.info(
                         "FsF-F2-01M : Found object identifier in metadata, repeating PID check for FsF-F1-02D"
                     )
@@ -345,12 +345,12 @@ def set_html_typed_links(self):
                 try:
                     dom = lxml.html.fromstring(self.landing_html.encode("utf8"))
                     links = dom.xpath("/*/head/link")
-                    for l in links:
+                    for link in links:
                         source = MetadataOfferingMethods.TYPED_LINKS
-                        href = l.attrib.get("href")
-                        rel = l.attrib.get("rel")
-                        type = l.attrib.get("type")
-                        profile = l.attrib.get("format")
+                        href = link.attrib.get("href")
+                        rel = link.attrib.get("rel")
+                        type = link.attrib.get("type")
+                        profile = link.attrib.get("format")
                         type = str(type).strip()
                         # handle relative paths
                         linkparts = urlparse(href)
@@ -673,7 +673,7 @@ def retrieve_metadata_embedded(self):
                 # requestHelper.setAcceptType(AcceptTypes.html_xml)  # request
                 requestHelper.setAcceptType(AcceptTypes.default)  # request
                 neg_source, landingpage_html = requestHelper.content_negotiate("FsF-F1-02D", ignore_html=False)
-                if not "html" in str(requestHelper.content_type):
+                if "html" not in str(requestHelper.content_type):
                     self.logger.info(
                         "FsF-F2-01M :Content type is "
                         + str(requestHelper.content_type)
diff --git a/fuji_server/helper/linked_vocab_helper.py b/fuji_server/helper/linked_vocab_helper.py
index a8cec7cf..58d38081 100644
--- a/fuji_server/helper/linked_vocab_helper.py
+++ b/fuji_server/helper/linked_vocab_helper.py
@@ -110,7 +110,7 @@ def set_linked_vocab_index(self):
     def get_overlap(self, s1, s2):
         result = ""
         for char in s1:
-            if char in s2 and not char in result:
+            if char in s2 and char not in result:
                 result += char
         return len(result)
 
diff --git a/fuji_server/helper/metadata_collector.py b/fuji_server/helper/metadata_collector.py
index 0827d0e7..36fe08d7 100644
--- a/fuji_server/helper/metadata_collector.py
+++ b/fuji_server/helper/metadata_collector.py
@@ -257,8 +257,8 @@ def getMetadataMapping(self):
     def getLogger(self):
         return self.logger
 
-    def setLogger(self, l):
-        self.logger = l
+    def setLogger(self, logger):
+        self.logger = logger
 
     def getSourceMetadata(self):
         return self.source_metadata
diff --git a/fuji_server/helper/metadata_collector_rdf.py b/fuji_server/helper/metadata_collector_rdf.py
index bf6158af..fa886ec9 100644
--- a/fuji_server/helper/metadata_collector_rdf.py
+++ b/fuji_server/helper/metadata_collector_rdf.py
@@ -438,9 +438,9 @@ def get_sparqled_metadata(self, g):
                 self.logger.info("FsF-F2-01M : Trying to query generic SPARQL on RDF, found triples: -:" + str(len(g)))
                 r = g.query(Mapper.GENERIC_SPARQL.value)
                 for row in r:
-                    for l, v in row.asdict().items():
-                        if l is not None:
-                            if l in [
+                    for relation_type, related_resource in row.asdict().items():
+                        if relation_type is not None:
+                            if relation_type in [
                                 "references",
                                 "source",
                                 "isVersionOf",
@@ -456,10 +456,12 @@ def get_sparqled_metadata(self, g):
                             ]:
                                 if not meta.get("related_resources"):
                                     meta["related_resources"] = []
-                                meta["related_resources"].append({"related_resource": str(v), "relation_type": l})
+                                meta["related_resources"].append(
+                                    {"related_resource": str(related_resource), "relation_type": relation_type}
+                                )
                             else:
-                                if v:
-                                    meta[l] = str(v)
+                                if related_resource:
+                                    meta[relation_type] = str(related_resource)
                     if meta:
                         break
                     # break
@@ -474,7 +476,7 @@ def get_sparqled_metadata(self, g):
             has_xhtml = False
             for t in list(g):
                 # exclude xhtml properties/predicates:
-                if not "/xhtml/vocab" in t[1] and not "/ogp.me" in t[1]:
+                if "/xhtml/vocab" not in t[1] and "/ogp.me" not in t[1]:
                     goodtriples.append(t)
                 else:
                     has_xhtml = True
diff --git a/fuji_server/helper/metric_helper.py b/fuji_server/helper/metric_helper.py
index f194283b..f6206349 100644
--- a/fuji_server/helper/metric_helper.py
+++ b/fuji_server/helper/metric_helper.py
@@ -7,7 +7,6 @@
 import re
 
 import yaml
-
 from fuji_server.helper.preprocessor import Preprocessor
 
 
diff --git a/fuji_server/helper/preprocessor.py b/fuji_server/helper/preprocessor.py
index fc606b8c..bc80739b 100644
--- a/fuji_server/helper/preprocessor.py
+++ b/fuji_server/helper/preprocessor.py
@@ -10,8 +10,8 @@
 from urllib.parse import urlparse
 
 import requests
-import yaml
 
+import yaml
 from fuji_server.helper.linked_vocab_helper import linked_vocab_helper
 
 
diff --git a/fuji_server/helper/request_helper.py b/fuji_server/helper/request_helper.py
index 4a569448..eeff2dbc 100644
--- a/fuji_server/helper/request_helper.py
+++ b/fuji_server/helper/request_helper.py
@@ -328,7 +328,7 @@ def content_negotiate(self, metric_id="", ignore_html=True):
                                     self.response_content = str(self.response_content).encode("utf-8")
 
                             # Now content should be utf-8 encoded
-                            if content_truncated == True:
+                            if content_truncated is True:
                                 try:
                                     self.response_content = self.response_content.rsplit(b"\n", 1)[0]
                                 except Exception as e:
@@ -410,7 +410,7 @@ def content_negotiate(self, metric_id="", ignore_html=True):
                                         if self.content_type in at.value:
                                             if at.name == "html":
                                                 # since we already parse HTML in the landing page we ignore this and do not parse again
-                                                if ignore_html == False:
+                                                if ignore_html is False:
                                                     self.logger.info("%s : Found HTML page!" % metric_id)
                                                 else:
                                                     self.logger.info("%s : Ignoring HTML response" % metric_id)
diff --git a/pyproject.toml b/pyproject.toml
index 811421c1..d1372296 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -148,17 +148,21 @@ markers = [
 testpaths = "tests"
 
 [tool.ruff]
-ignore = [
-  "RUF012"  # mutable-class-default
-]
 line-length = 120
-select = [
-  "F",  # pyflakes
+# Ref: https://docs.astral.sh/ruff/configuration/
+src = ["fuji_server"]
+target-version = "py311"
+
+[tool.ruff.lint]
+extend-select = [
   "I",  # isort
   "UP",  # pyupgrade
   "RUF"  # ruff
 ]
-target-version = "py311"
+ignore = [
+  "E722",  # bare-except
+  "RUF012"  # mutable-class-default
+]
 
-[tool.ruff.isort]
+[tool.ruff.lint.isort]
 known-first-party = ["fuji_server", "tests"]
diff --git a/tests/helper/test_preprocessor.py b/tests/helper/test_preprocessor.py
index d7cc8c0c..b30b5f76 100644
--- a/tests/helper/test_preprocessor.py
+++ b/tests/helper/test_preprocessor.py
@@ -23,8 +23,8 @@
 from typing import Any
 
 import pytest
-import yaml
 
+import yaml
 from fuji_server.helper.preprocessor import Preprocessor
 from tests.conftest import DATA_DIR