diff --git a/RMuseum/Controllers/ArtifactController.cs b/RMuseum/Controllers/ArtifactController.cs
index f68f72b5..4468c089 100644
--- a/RMuseum/Controllers/ArtifactController.cs
+++ b/RMuseum/Controllers/ArtifactController.cs
@@ -30,6 +30,17 @@ namespace RMuseum.Controllers
     [Route("api/artifacts")]
     public class ArtifactController : Controller
     {
+        /// <summary>
+        /// HTTP dates only have one-second precision - truncate before using a value for
+        /// Last-Modified/If-Modified-Since comparisons, or a DB value with sub-second precision
+        /// would always fail the >= comparison against a client's necessarily-truncated header
+        /// </summary>
+        /// <param name="dt"></param>
+        /// <returns></returns>
+        private static DateTime TruncateToSeconds(DateTime dt)
+        {
+            return new DateTime(dt.Year, dt.Month, dt.Day, dt.Hour, dt.Minute, dt.Second, dt.Kind);
+        }
         /// <summary>
         /// gets specified publish artifact item info (including images + attributes)
         /// </summary>
@@ -51,12 +62,12 @@ namespace RMuseum.Controllers
             if (itemInfo.Result == null)
                 return NotFound();
 
-            Response.GetTypedHeaders().LastModified = itemInfo.Result.Item.LastModified;
+            Response.GetTypedHeaders().LastModified = TruncateToSeconds(itemInfo.Result.Item.LastModified);
             Response.Headers.CacheControl = "public,max-age=300";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= itemInfo.Result.Item.LastModified)
+                requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(itemInfo.Result.Item.LastModified))
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -92,12 +103,12 @@ namespace RMuseum.Controllers
             if (itemsInfo.Result.Items.Count() > 0)
             {
                 DateTime lastModification = itemsInfo.Result.Items.Max(i => i.LastModified);
-                Response.GetTypedHeaders().LastModified = lastModification;
+                Response.GetTypedHeaders().LastModified = TruncateToSeconds(lastModification);
                 Response.Headers.CacheControl = "public,max-age=300";
 
                 var requestHeaders = Request.GetTypedHeaders();
                 if (requestHeaders.IfModifiedSince.HasValue &&
-                    requestHeaders.IfModifiedSince.Value >= lastModification)
+                    requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(lastModification))
                 {
                     return StatusCode(StatusCodes.Status304NotModified);
                 }
@@ -185,12 +196,12 @@ namespace RMuseum.Controllers
             if (itemsInfo.Result.Items.Count() > 0)
             {
                 DateTime lastModification = itemsInfo.Result.Items.Max(i => i.LastModified);
-                Response.GetTypedHeaders().LastModified = lastModification;
+                Response.GetTypedHeaders().LastModified = TruncateToSeconds(lastModification);
                 Response.Headers.CacheControl = "private,max-age=300";
 
                 var requestHeaders = Request.GetTypedHeaders();
                 if (requestHeaders.IfModifiedSince.HasValue &&
-                    requestHeaders.IfModifiedSince.Value >= lastModification)
+                    requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(lastModification))
                 {
                     return StatusCode(StatusCodes.Status304NotModified);
                 }
@@ -217,12 +228,12 @@ namespace RMuseum.Controllers
             if (itemsInfo.Result.Length > 0)
             {
                 DateTime lastModification = itemsInfo.Result.Max(i => i.LastModified);
-                Response.GetTypedHeaders().LastModified = lastModification;
+                Response.GetTypedHeaders().LastModified = TruncateToSeconds(lastModification);
                 Response.Headers.CacheControl = "public,max-age=300";
 
                 var requestHeaders = Request.GetTypedHeaders();
                 if (requestHeaders.IfModifiedSince.HasValue &&
-                    requestHeaders.IfModifiedSince.Value >= lastModification)
+                    requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(lastModification))
                 {
                     return StatusCode(StatusCodes.Status304NotModified);
                 }
@@ -259,12 +270,12 @@ namespace RMuseum.Controllers
             }
 
 
-            Response.GetTypedHeaders().LastModified = itemInfo.Result.LastModified;
+            Response.GetTypedHeaders().LastModified = TruncateToSeconds(itemInfo.Result.LastModified);
             Response.Headers.CacheControl = "public,max-age=300";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= itemInfo.Result.LastModified)
+                requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(itemInfo.Result.LastModified))
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -300,12 +311,12 @@ namespace RMuseum.Controllers
             }
 
 
-            Response.GetTypedHeaders().LastModified = itemInfo.Result.LastModified;
+            Response.GetTypedHeaders().LastModified = TruncateToSeconds(itemInfo.Result.LastModified);
             Response.Headers.CacheControl = "public,max-age=300";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= itemInfo.Result.LastModified)
+                requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(itemInfo.Result.LastModified))
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -402,12 +413,12 @@ namespace RMuseum.Controllers
                 _memoryCache.Set(cacheKey, itemInfo, TimeSpan.FromHours(1));
             }
 
-            Response.GetTypedHeaders().LastModified = itemInfo.Result.LastModified;
+            Response.GetTypedHeaders().LastModified = TruncateToSeconds(itemInfo.Result.LastModified);
             Response.Headers.CacheControl = "public,max-age=300";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= itemInfo.Result.LastModified)
+                requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(itemInfo.Result.LastModified))
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -464,12 +475,12 @@ namespace RMuseum.Controllers
             if (itemInfo.Result == null)
                 return NotFound();
 
-            Response.GetTypedHeaders().LastModified = itemInfo.Result.LastModified;
+            Response.GetTypedHeaders().LastModified = TruncateToSeconds(itemInfo.Result.LastModified);
             Response.Headers.CacheControl = "private,max-age=300";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= itemInfo.Result.LastModified)
+                requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(itemInfo.Result.LastModified))
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -528,12 +539,12 @@ namespace RMuseum.Controllers
             if (itemInfo.Result == null)
                 return NotFound();
 
-            Response.GetTypedHeaders().LastModified = itemInfo.Result.LastModified;
+            Response.GetTypedHeaders().LastModified = TruncateToSeconds(itemInfo.Result.LastModified);
             Response.Headers.CacheControl = "private,max-age=300";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= itemInfo.Result.LastModified)
+                requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(itemInfo.Result.LastModified))
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -592,12 +603,12 @@ namespace RMuseum.Controllers
             if (itemInfo.Result == null)
                 return NotFound();
 
-            Response.GetTypedHeaders().LastModified = itemInfo.Result.LastModified;
+            Response.GetTypedHeaders().LastModified = TruncateToSeconds(itemInfo.Result.LastModified);
             Response.Headers.CacheControl = "private,max-age=300";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= itemInfo.Result.LastModified)
+                requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(itemInfo.Result.LastModified))
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -723,12 +734,12 @@ namespace RMuseum.Controllers
             }
 
             DateTime lastModification = lastModified.Result;
-            Response.GetTypedHeaders().LastModified = lastModification;
+            Response.GetTypedHeaders().LastModified = TruncateToSeconds(lastModification);
             Response.Headers.CacheControl = "public,max-age=300";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= lastModification)
+                requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(lastModification))
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -1161,12 +1172,12 @@ namespace RMuseum.Controllers
             if (itemInfo.Result == null)
                 return NotFound();
 
-            Response.GetTypedHeaders().LastModified = itemInfo.Result.Item.LastModified;
+            Response.GetTypedHeaders().LastModified = TruncateToSeconds(itemInfo.Result.Item.LastModified);
             Response.Headers.CacheControl = "private,max-age=300";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= itemInfo.Result.Item.LastModified)
+                requestHeaders.IfModifiedSince.Value >= TruncateToSeconds(itemInfo.Result.Item.LastModified))
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
diff --git a/RMuseum/Controllers/GanjoorController.cs b/RMuseum/Controllers/GanjoorController.cs
index 0fcf06fe..fb25aa9a 100644
--- a/RMuseum/Controllers/GanjoorController.cs
+++ b/RMuseum/Controllers/GanjoorController.cs
@@ -323,6 +323,7 @@ namespace RMuseum.Controllers
                     return NotFound();
 
                 lastModified = img.Result.LastModified;
+                lastModified = new DateTime(lastModified.Year, lastModified.Month, lastModified.Day, lastModified.Hour, lastModified.Minute, lastModified.Second, lastModified.Kind);
 
 
 
diff --git a/RMuseum/Controllers/ImageController.cs b/RMuseum/Controllers/ImageController.cs
index c6bc2d27..29fb767c 100644
--- a/RMuseum/Controllers/ImageController.cs
+++ b/RMuseum/Controllers/ImageController.cs
@@ -51,12 +51,14 @@ namespace RMuseum.Controllers
             }
                 
 
-            Response.GetTypedHeaders().LastModified = img.Result.LastModified;
+            DateTime lastModified = img.Result.LastModified;
+            lastModified = new DateTime(lastModified.Year, lastModified.Month, lastModified.Day, lastModified.Hour, lastModified.Minute, lastModified.Second, lastModified.Kind);
+            Response.GetTypedHeaders().LastModified = lastModified;
             Response.Headers.CacheControl = "public,max-age=86400";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= img.Result.LastModified)
+                requestHeaders.IfModifiedSince.Value >= lastModified)
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
diff --git a/RMuseum/Controllers/RecitationController.cs b/RMuseum/Controllers/RecitationController.cs
index afa2ef97..074fc304 100644
--- a/RMuseum/Controllers/RecitationController.cs
+++ b/RMuseum/Controllers/RecitationController.cs
@@ -179,13 +179,15 @@ namespace RMuseum.Controllers
             if (narration.Result == null)
                 return NotFound();
 
-            Response.GetTypedHeaders().LastModified = narration.Result.UploadDate;//TODO: Add a FileLastUpdated field to narrations to indicate the last time the mp3/xml files have been updated
+            DateTime lastModified = narration.Result.UploadDate;//TODO: Add a FileLastUpdated field to narrations to indicate the last time the mp3/xml files have been updated
+            lastModified = new DateTime(lastModified.Year, lastModified.Month, lastModified.Day, lastModified.Hour, lastModified.Minute, lastModified.Second, lastModified.Kind);
+            Response.GetTypedHeaders().LastModified = lastModified;
             Response.Headers.CacheControl = "public,max-age=86400";
             
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= narration.Result.UploadDate)
+                requestHeaders.IfModifiedSince.Value >= lastModified)
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -222,12 +224,14 @@ namespace RMuseum.Controllers
             if (narration.Result == null)
                 return NotFound();
 
-            Response.GetTypedHeaders().LastModified = narration.Result.UploadDate;//TODO: Add a FileLastUpdated field to narrations to indicate the last time the mp3/xml files have been updated
+            DateTime lastModified = narration.Result.UploadDate;//TODO: Add a FileLastUpdated field to narrations to indicate the last time the mp3/xml files have been updated
+            lastModified = new DateTime(lastModified.Year, lastModified.Month, lastModified.Day, lastModified.Hour, lastModified.Minute, lastModified.Second, lastModified.Kind);
+            Response.GetTypedHeaders().LastModified = lastModified;
             Response.Headers.CacheControl = "public,max-age=86400";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= narration.Result.UploadDate)
+                requestHeaders.IfModifiedSince.Value >= lastModified)
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
@@ -259,12 +263,14 @@ namespace RMuseum.Controllers
             if (narration.Result == null)
                 return NotFound();
 
-            Response.GetTypedHeaders().LastModified = narration.Result.UploadDate;//TODO: Add a FileLastUpdated field to narrations to indicate the last time the mp3/xml files have been updated
+            DateTime lastModified = narration.Result.UploadDate;//TODO: Add a FileLastUpdated field to narrations to indicate the last time the mp3/xml files have been updated
+            lastModified = new DateTime(lastModified.Year, lastModified.Month, lastModified.Day, lastModified.Hour, lastModified.Minute, lastModified.Second, lastModified.Kind);
+            Response.GetTypedHeaders().LastModified = lastModified;
             Response.Headers.CacheControl = "public,max-age=86400";
 
             var requestHeaders = Request.GetTypedHeaders();
             if (requestHeaders.IfModifiedSince.HasValue &&
-                requestHeaders.IfModifiedSince.Value >= narration.Result.UploadDate)
+                requestHeaders.IfModifiedSince.Value >= lastModified)
             {
                 return StatusCode(StatusCodes.Status304NotModified);
             }
diff --git a/RMuseum/RMuseum.xml b/RMuseum/RMuseum.xml
index 266b2ab4..73a10c21 100644
--- a/RMuseum/RMuseum.xml
+++ b/RMuseum/RMuseum.xml
@@ -41,6 +41,15 @@
             <param name="imageFileService"></param>
             <param name="captchaService"></param>
         </member>
+        <member name="M:RMuseum.Controllers.ArtifactController.TruncateToSeconds(System.DateTime)">
+            <summary>
+            HTTP dates only have one-second precision - truncate before using a value for
+            Last-Modified/If-Modified-Since comparisons, or a DB value with sub-second precision
+            would always fail the >= comparison against a client's necessarily-truncated header
+            </summary>
+            <param name="dt"></param>
+            <returns></returns>
+        </member>
         <member name="M:RMuseum.Controllers.ArtifactController.GetArtifactItemByFrienlyUrl(System.String,System.String)">
             <summary>
             gets specified publish artifact item info (including images + attributes)
@@ -20761,11 +20770,25 @@
             <param name="options"></param>
             <returns></returns>
         </member>
-        <member name="M:RMuseum.Services.Implementation.GanjoorService.PreparePlainText(System.Collections.Generic.List{RMuseum.Models.Ganjoor.GanjoorVerse})">
+        <member name="M:RMuseum.Services.Implementation.GanjoorService.ExtractSearchableTitlePart(System.String)">
+            <summary>
+            extracts the searchable part of a poem title, discarding pure boilerplate like
+            "غزل شمارهٔ ۱" or "بخش ۴۷" which carries no information beyond the ordinal number,
+            while keeping either the whole title (if it has no number at all, e.g. "طهمورث")
+            or just the descriptive part after the number (e.g. "بخش ۴۷ - تشبیه کردن قرآن..."
+            keeps "تشبیه کردن قرآن...") - returns "" when there is nothing worth indexing
+            </summary>
+            <param name="title"></param>
+            <returns></returns>
+        </member>
+        <member name="M:RMuseum.Services.Implementation.GanjoorService.PreparePlainText(System.Collections.Generic.List{RMuseum.Models.Ganjoor.GanjoorVerse},System.String)">
             <summary>
             make plain text
             </summary>
             <param name="verses"></param>
+            <param name="title">poem/section title - its searchable part (if any) is included so
+            titles like "بخش ۴۷ - تشبیه کردن ..." are findable through search, while pure
+            boilerplate like "غزل شمارهٔ ۱" is silently skipped</param>
             <returns></returns>
         </member>
         <member name="M:RMuseum.Services.Implementation.GanjoorService.RegerneratePoemsPlainText(System.Int32)">