diff --git a/src/backend/core/pdf_cache.py b/src/backend/core/pdf_cache.py
index b1674d7..0a518b2 100644
--- a/src/backend/core/pdf_cache.py
+++ b/src/backend/core/pdf_cache.py
@@ -12,9 +12,10 @@ from typing import Any
 from backend.core.core import SwotAnalysis
 from backend.core.pdf_service import compute_content_hash
 from backend.logger import logger
+from backend.settings.consts import PDF_CACHE_TTL_SECONDS
 
 # Cache configuration
-CACHE_TTL_SECONDS = 300  # 5 minutes
+CACHE_TTL_SECONDS = PDF_CACHE_TTL_SECONDS  # Imported from settings
 CLEANUP_INTERVAL_SECONDS = 60  # Run cleanup every minute
 
 
diff --git a/src/backend/core/tools.py b/src/backend/core/tools.py
index 0e6fabe..6e81104 100644
--- a/src/backend/core/tools.py
+++ b/src/backend/core/tools.py
@@ -9,6 +9,10 @@ from backend.core.consts import AI_MODEL
 from backend.core.core import SwotAgentDeps, SwotAnalysis, swot_agent
 from backend.core.utils import report_tool_usage
 from backend.logger import logger
+from backend.settings.consts import (
+    HTTP_CONNECT_TIMEOUT_SECONDS,
+    HTTP_REQUEST_TIMEOUT_SECONDS,
+)
 from backend.utils import get_val, set_event_loop, windows_sys_event_loop_check
 
 
@@ -25,8 +29,10 @@ async def fetch_website_content(
     :return: str
     """
     logger.info(f"Fetching website content for: {url}")
-    # Set reasonable timeouts: 10s connect, 30s total
-    timeout = httpx.Timeout(30.0, connect=10.0)
+    # Configure timeouts to prevent hanging on slow responses
+    timeout = httpx.Timeout(
+        HTTP_REQUEST_TIMEOUT_SECONDS, connect=HTTP_CONNECT_TIMEOUT_SECONDS
+    )
     async with httpx.AsyncClient(
         follow_redirects=True, timeout=timeout
     ) as http_client:
diff --git a/src/backend/settings/consts.py b/src/backend/settings/consts.py
index deb49db..1bd7068 100644
--- a/src/backend/settings/consts.py
+++ b/src/backend/settings/consts.py
@@ -54,3 +54,34 @@ all_dialects = enum.Enum(
 
 # TODO: include Oracle and MSSQL dialects
 SECRET_KEY: str = config("SECRET_KEY")
+
+# Application Configuration Constants
+# ===================================
+
+# PDF Generation and Caching
+PDF_CACHE_TTL_SECONDS = 300  # 5 minutes
+PDF_GENERATION_TIMEOUT_SECONDS = 60
+
+# SWOT Analysis Validation
+SWOT_MIN_ITEMS_PER_CATEGORY = 2
+SWOT_MAX_ITEMS_PER_CATEGORY = 10
+SWOT_MIN_ANALYSIS_LENGTH = 100
+SWOT_MAX_ANALYSIS_LENGTH = 5000
+
+# Status Updates and Polling
+STATUS_UPDATE_DELAY_MIN_SECONDS = 0
+STATUS_UPDATE_DELAY_MAX_SECONDS = 5
+STATUS_POLL_INTERVAL_SECONDS = 1
+
+# External API Configuration
+HTTP_REQUEST_TIMEOUT_SECONDS = 30
+HTTP_CONNECT_TIMEOUT_SECONDS = 10
+
+# Input Validation
+MAX_PRIMARY_ENTITY_LENGTH = 500
+MAX_COMPARISON_ENTITIES_LENGTH = 2000
+MAX_COMPARISON_ENTITIES_COUNT = 10
+
+# Reddit API Configuration
+REDDIT_MAX_SUBREDDITS = 10
+REDDIT_CONCURRENT_THRESHOLD = 3  # Switch to async when >3 subreddits
diff --git a/src/backend/site/router.py b/src/backend/site/router.py
index 9683c63..52e185c 100644
--- a/src/backend/site/router.py
+++ b/src/backend/site/router.py
@@ -11,6 +11,10 @@ from backend.core.pdf_cache import pdf_cache
 from backend.core.pdf_service import generate_swot_pdf
 from backend.logger import logger
 from backend.settings import app_settings
+from backend.settings.consts import (
+    MAX_COMPARISON_ENTITIES_LENGTH,
+    MAX_PRIMARY_ENTITY_LENGTH,
+)
 from backend.site.consts import (
     ANALYSIS_COMPLETE_MESSAGE,
     ANALYZING_MESSAGE,
@@ -45,12 +49,12 @@ class AnalysisInput(BaseModel):
     primary_entity: str = Field(
         ...,
         min_length=1,
-        max_length=500,
+        max_length=MAX_PRIMARY_ENTITY_LENGTH,
         description="Primary entity (company name or URL)",
     )
     comparison_entities: str = Field(
         default="",
-        max_length=2000,
+        max_length=MAX_COMPARISON_ENTITIES_LENGTH,
         description="Comma-separated comparison entities (optional)",
     )
 
diff --git a/src/backend/site/utils.py b/src/backend/site/utils.py
index 2e60c85..6a7e8d3 100644
--- a/src/backend/site/utils.py
+++ b/src/backend/site/utils.py
@@ -7,6 +7,10 @@ from loguru import logger
 
 from backend.core.core import SwotAgentDeps, SwotAnalysis
 from backend.core.tools import run_agent
+from backend.settings.consts import (
+    STATUS_UPDATE_DELAY_MAX_SECONDS,
+    STATUS_UPDATE_DELAY_MIN_SECONDS,
+)
 from backend.site.consts import (
     ANALYSIS_COMPLETE_MESSAGE,
     result_store,
@@ -20,8 +24,11 @@ async def emulate_tool_completion(session_id: str, message: str) -> None:
 
     Uses asyncio.sleep to avoid blocking the event loop.
     """
-    # Sleep a random amount of time between 0 and 5 seconds (async)
-    await asyncio.sleep(random.randint(0, 5))
+    # Sleep a random amount of time (async)
+    delay = random.randint(
+        STATUS_UPDATE_DELAY_MIN_SECONDS, STATUS_UPDATE_DELAY_MAX_SECONDS
+    )
+    await asyncio.sleep(delay)
     status_store[session_id].append(message)