GitHub.com
tcp/443 tcp/80
Open service 185.199.108.153:443 · osgridreference.obermajer.co.uk
2026-02-06 01:37
HTTP/1.1 200 OK
Connection: close
Content-Length: 26705
Server: GitHub.com
Content-Type: text/html; charset=utf-8
Last-Modified: Sat, 17 Jan 2026 13:02:03 GMT
Access-Control-Allow-Origin: *
ETag: "696b884b-6851"
expires: Fri, 06 Feb 2026 01:47:52 GMT
Cache-Control: max-age=600
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Page title: OS Grid Reference Converter | Location Finder
<!DOCTYPE html>
<html lang="en" class="h-full">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
<link rel="icon" type="image/x-icon" href="./favicon.ico">
<!-- Primary SEO stuff -->
<!-- PAT-TEMPLATE heres the title that we change -->
<title>OS Grid Reference Converter | Location Finder</title>
<meta name="title" content="OS Grid Reference Converter and Location Search | Obermajer">
<meta name="description" content="OS British National Grid Reference Converter. Instantly convert between OS Grid Reference, latitude/longitude, and easting/northing coordinates. Search by address or coordinate, and open locations in external map apps.">
<link rel="canonical" href="https://osgridreference.obermajer.co.uk/">
<!-- Open Graph -->
<meta property="og:site_name" content="OS Grid Reference Converter">
<meta property="og:title" content="OS Grid Reference Converter and Location Search | Obermajer">
<meta property="og:description" content="OS British National Grid Reference Converter. Instantly convert between OS Grid Reference, latitude/longitude, and easting/northing coordinates. Search by address or coordinate, and open locations in external map apps.">
<meta property="og:url" content="https://osgridreference.obermajer.co.uk/">
<meta property="og:image" content="https://obermajer.co.uk/assets/basemap-preview.png">
<meta property="og:type" content="website">
<script src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.8.0/proj4.min.js" defer></script>
<script defer src="./map-init.js"></script>
<script defer src="os-transform.js"></script>
<!-- Leaflet CSS -->
<link
rel="stylesheet"
href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"
/>
<!-- Leaflet JS -->
<script
defer
src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"
></script>
<!-- ADD these two -->
<!-- <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@7.5.2/ol.css">
<script defer src="https://cdn.jsdelivr.net/npm/ol@7.5.2/dist/ol.js"></script> -->
<!-- Structured data for site name (used on mobile sometimes) -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "WebPage",
"name": "OS British National Grid Reference Converter",
"url": "https://osgridreference.obermajer.co.uk/",
"description": "OS British National Grid Reference Converter. Instantly convert between OS Grid Reference, latitude/longitude, and easting/northing coordinates. Search by address or coordinate, and open locations in external map apps."
}
</script>
<!-- the rest -->
<link href="shared-tailwind.css" rel="stylesheet">
<link href="pat-style.css" rel="stylesheet">
<script defer src="https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"></script>
</head>
<body class="h-full"
x-data="{ panel: true, tab: 'info', docs: false, contact: false }"
@keydown.escape.window="docs = false; panel = false; contact = false">
<!-- ▸ TOP BAR ---------------------------------------------------- -->
<header x-data="{ open: false, mobileOpen: false }" class="bg-gray-800 relative z-30
h-14 flex items-center justify-between
backdrop-blur-2xl border-b border-gray-900 px-4 shadow-lg
backdrop-saturate-150
">
<!-- Brand block -->
<div class="flex items-center gap-2 min-w-0 overflow-hidden select-none">
<img src="./assets/logo.svg" alt="Icon" class="h-7 w-7 shrink-0 opacity-80" />
<h1 class=" text-white block rounded-md px-3 py-2 text-base font-large whitespace-nowrap truncate">
OS National Grid Reference Tool
</h1>
<span class="text-gray-400 mx-1 ">/</span>
<span class="text-sm hidden sm:inline-flex font-medium text-gray-400 whitespace-nowrap truncate">
Find and convert OS British National Grid coordinates
</span>
<!-- <span class="hidden sm:inline-flex items-center px-2 py-0.5 ml-2 rounded-full
border border-blue-300 bg-blue-50 text-blue-700
text-[10px] font-medium uppercase tracking-wider
shadow-sm
Open service 185.199.108.153:80 · osgridreference.obermajer.co.uk
2026-02-06 01:37
HTTP/1.1 301 Moved Permanently Connection: close Content-Length: 162 Server: GitHub.com Content-Type: text/html x-origin-cache: HIT Location: https://osgridreference.obermajer.co.uk/ X-GitHub-Request-Id: 8B64:238ED2:3A94D:3F02D:698545F0 Accept-Ranges: bytes Age: 0 Date: Fri, 06 Feb 2026 01:37:52 GMT Via: 1.1 varnish X-Served-By: cache-sjc10029-SJC X-Cache: MISS X-Cache-Hits: 0 X-Timer: S1770341873.645310,VS0,VE68 Vary: Accept-Encoding X-Fastly-Request-ID: ed16a11778e1fe298de821fe185f0b217ef74fe1 Page title: 301 Moved Permanently <html> <head><title>301 Moved Permanently</title></head> <body> <center><h1>301 Moved Permanently</h1></center> <hr><center>nginx</center> </body> </html>
Open service 2606:50c0:8003::153:443 · osgridreference.obermajer.co.uk
2026-02-06 01:37
HTTP/1.1 200 OK
Connection: close
Content-Length: 26705
Server: GitHub.com
Content-Type: text/html; charset=utf-8
x-origin-cache: HIT
Last-Modified: Sat, 17 Jan 2026 13:02:03 GMT
Access-Control-Allow-Origin: *
ETag: "696b884b-6851"
expires: Fri, 06 Feb 2026 01:47:52 GMT
Cache-Control: max-age=600
x-proxy-cache: MISS
X-GitHub-Request-Id: D96C:14639C:450A25:4620BC:698545EF
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Page title: OS Grid Reference Converter | Location Finder
<!DOCTYPE html>
<html lang="en" class="h-full">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
<link rel="icon" type="image/x-icon" href="./favicon.ico">
<!-- Primary SEO stuff -->
<!-- PAT-TEMPLATE heres the title that we change -->
<title>OS Grid Reference Converter | Location Finder</title>
<meta name="title" content="OS Grid Reference Converter and Location Search | Obermajer">
<meta name="description" content="OS British National Grid Reference Converter. Instantly convert between OS Grid Reference, latitude/longitude, and easting/northing coordinates. Search by address or coordinate, and open locations in external map apps.">
<link rel="canonical" href="https://osgridreference.obermajer.co.uk/">
<!-- Open Graph -->
<meta property="og:site_name" content="OS Grid Reference Converter">
<meta property="og:title" content="OS Grid Reference Converter and Location Search | Obermajer">
<meta property="og:description" content="OS British National Grid Reference Converter. Instantly convert between OS Grid Reference, latitude/longitude, and easting/northing coordinates. Search by address or coordinate, and open locations in external map apps.">
<meta property="og:url" content="https://osgridreference.obermajer.co.uk/">
<meta property="og:image" content="https://obermajer.co.uk/assets/basemap-preview.png">
<meta property="og:type" content="website">
<script src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.8.0/proj4.min.js" defer></script>
<script defer src="./map-init.js"></script>
<script defer src="os-transform.js"></script>
<!-- Leaflet CSS -->
<link
rel="stylesheet"
href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"
/>
<!-- Leaflet JS -->
<script
defer
src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"
></script>
<!-- ADD these two -->
<!-- <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@7.5.2/ol.css">
<script defer src="https://cdn.jsdelivr.net/npm/ol@7.5.2/dist/ol.js"></script> -->
<!-- Structured data for site name (used on mobile sometimes) -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "WebPage",
"name": "OS British National Grid Reference Converter",
"url": "https://osgridreference.obermajer.co.uk/",
"description": "OS British National Grid Reference Converter. Instantly convert between OS Grid Reference, latitude/longitude, and easting/northing coordinates. Search by address or coordinate, and open locations in external map apps."
}
</script>
<!-- the rest -->
<link href="shared-tailwind.css" rel="stylesheet">
<link href="pat-style.css" rel="stylesheet">
<script defer src="https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"></script>
</head>
<body class="h-full"
x-data="{ panel: true, tab: 'info', docs: false, contact: false }"
@keydown.escape.window="docs = false; panel = false; contact = false">
<!-- ▸ TOP BAR ---------------------------------------------------- -->
<header x-data="{ open: false, mobileOpen: false }" class="bg-gray-800 relative z-30
h-14 flex items-center justify-between
backdrop-blur-2xl border-b border-gray-900 px-4 shadow-lg
backdrop-saturate-150
">
<!-- Brand block -->
<div class="flex items-center gap-2 min-w-0 overflow-hidden select-none">
<img src="./assets/logo.svg" alt="Icon" class="h-7 w-7 shrink-0 opacity-80" />
<h1 class=" text-white block rounded-md px-3 py-2 text-base font-large whitespace-nowrap truncate">
OS National Grid Reference Tool
</h1>
<span class="text-gray-400 mx-1 ">/</span>
<span class="text-sm hidden sm:inline-flex font-medium text-gray-400 whitespace-nowrap truncate">
Find and convert OS British National Grid coordinates
</span>
<!-- <span class="hidden sm:inline-flex items-center px-2 py-0.5 ml-2 rounded-full
border border-blue-300 bg-blue-50 text-blue-700
text-[10px] font-medium uppercase tracking-wider
shadow-sm
Open service 185.199.109.153:443 · osgridreference.obermajer.co.uk
2026-02-06 01:37
HTTP/1.1 200 OK
Connection: close
Content-Length: 26705
Server: GitHub.com
Content-Type: text/html; charset=utf-8
Last-Modified: Sat, 17 Jan 2026 13:02:03 GMT
Access-Control-Allow-Origin: *
ETag: "696b884b-6851"
expires: Fri, 06 Feb 2026 01:47:52 GMT
Cache-Control: max-age=600
x-proxy-cache: MISS
X-GitHub-Request-Id: DE26:14639C:4509FA:462096:698545F0
Accept-Ranges: bytes
Age: 0
Date: Fri, 06 Feb 2026 01:37:52 GMT
Via: 1.1 varnish
X-Served-By: cache-rtm-ehrd2290050-RTM
X-Cache: MISS
X-Cache-Hits: 0
X-Timer: S1770341872.423103,VS0,VE106
Vary: Accept-Encoding
X-Fastly-Request-ID: 4d9243e2a4618d8dd7bb5e50632d7a295ac01dd6
Page title: OS Grid Reference Converter | Location Finder
<!DOCTYPE html>
<html lang="en" class="h-full">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
<link rel="icon" type="image/x-icon" href="./favicon.ico">
<!-- Primary SEO stuff -->
<!-- PAT-TEMPLATE heres the title that we change -->
<title>OS Grid Reference Converter | Location Finder</title>
<meta name="title" content="OS Grid Reference Converter and Location Search | Obermajer">
<meta name="description" content="OS British National Grid Reference Converter. Instantly convert between OS Grid Reference, latitude/longitude, and easting/northing coordinates. Search by address or coordinate, and open locations in external map apps.">
<link rel="canonical" href="https://osgridreference.obermajer.co.uk/">
<!-- Open Graph -->
<meta property="og:site_name" content="OS Grid Reference Converter">
<meta property="og:title" content="OS Grid Reference Converter and Location Search | Obermajer">
<meta property="og:description" content="OS British National Grid Reference Converter. Instantly convert between OS Grid Reference, latitude/longitude, and easting/northing coordinates. Search by address or coordinate, and open locations in external map apps.">
<meta property="og:url" content="https://osgridreference.obermajer.co.uk/">
<meta property="og:image" content="https://obermajer.co.uk/assets/basemap-preview.png">
<meta property="og:type" content="website">
<script src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.8.0/proj4.min.js" defer></script>
<script defer src="./map-init.js"></script>
<script defer src="os-transform.js"></script>
<!-- Leaflet CSS -->
<link
rel="stylesheet"
href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"
/>
<!-- Leaflet JS -->
<script
defer
src="https://unpkg.com/leaflet@1.9.4/dist/leaflet.js"
></script>
<!-- ADD these two -->
<!-- <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/ol@7.5.2/ol.css">
<script defer src="https://cdn.jsdelivr.net/npm/ol@7.5.2/dist/ol.js"></script> -->
<!-- Structured data for site name (used on mobile sometimes) -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "WebPage",
"name": "OS British National Grid Reference Converter",
"url": "https://osgridreference.obermajer.co.uk/",
"description": "OS British National Grid Reference Converter. Instantly convert between OS Grid Reference, latitude/longitude, and easting/northing coordinates. Search by address or coordinate, and open locations in external map apps."
}
</script>
<!-- the rest -->
<link href="shared-tailwind.css" rel="stylesheet">
<link href="pat-style.css" rel="stylesheet">
<script defer src="https://cdn.jsdelivr.net/npm/alpinejs@3.x.x/dist/cdn.min.js"></script>
</head>
<body class="h-full"
x-data="{ panel: true, tab: 'info', docs: false, contact: false }"
@keydown.escape.window="docs = false; panel = false; contact = false">
<!-- ▸ TOP BAR ---------------------------------------------------- -->
<header x-data="{ open: false, mobileOpen: false }" class="bg-gray-800 relative z-30
h-14 flex items-center justify-between
backdrop-blur-2xl border-b border-gray-900 px-4 shadow-lg
backdrop-saturate-150
">
<!-- Brand block -->
<div class="flex items-center gap-2 min-w-0 overflow-hidden select-none">
<img src="./assets/logo.svg" alt="Icon" class="h-7 w-7 shrink-0 opacity-80" />
<h1 class=" text-white block rounded-md px-3 py-2 text-base font-large whitespace-nowrap truncate">
OS National Grid Reference Tool
</h1>
<span class="text-gray-400 mx-1 ">/</span>
<span class="text-sm hidden sm:inline-flex font-medium text-gray-400 whitespace-nowrap truncate">
Find and convert OS British National Grid coordinates
</span>
<!-- <span class="hidden sm:inline-flex items-center px-2 py-0.5 ml-2 rounded-full
border border-blue-300 bg-blue-50 text-blue-700
text-[10px] font-medium uppercase tracking-wider
shadow-sm