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https://m.me

Infrastructure

· 9 checks — DNS, redirects, IPv6, crawlability, URL variants, and domain intelligence rolled into one auditable list.
SCORE
91
GRADE
A
FIX
2
REVIEW
1
PASS
6
INFO
0
Probed from New York, United Stated
302 Found
Checks
9
6 PASS 1 REVIEW 2 FIX
D
TLS Certificate Expiry & Recommendations
Action
8 days until leaf cert expires — 4 issues to address
FIX

Certificate validity

8
days left
0d 30d 60d 90d+
Renew urgently — under 14 days remaining

Recommended actions

  • Renew certificate — 8 days remaining
  • Submit your domain to hstspreload.org to be added to the Chrome preload list
  • Enable DNSSEC on your domain for DNS spoofing protection
  • Enable OCSP stapling on your TLS server to remove a CA roundtrip and protect user privacy
D
CDN & Delivery
Action
No CDN detected
FIX
No CDN detected
Warning::
No CDN detected
A CDN can significantly improve load times for users around the world by caching content at edge nodes closer to them.
No CDN detected

Consider using a CDN to improve global delivery speed and reduce origin load.

C
Crawlability
Action
robots.txt present, sitemap with 0 URLs
REVIEW
robots.txt present, sitemap with 0 URLs
Info::
robots.txt is present
Got: 10240 bytes
Info::
sitemap.xml is present
Warning::
sitemap.xml contains invalid XML
Search engines may not be able to parse the sitemap. Fix XML validation errors.
Warning::
sitemap.xml is empty — no URLs found
An empty sitemap provides no value. Add <url> entries for your pages.
Info::
robots.txt does not reference a sitemap
Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Search engines may not be able to parse the sitemap. Fix XML validation errors.

Why this matters

An unparseable sitemap is silently ignored by Google — the URLs it advertises are never queued for crawl.

Learn more ▾

Google's sitemap parser is strict about XML validity. A single unescaped `&` or unclosed tag invalidates the whole file. Run your sitemap through a validator (Search Console's Sitemaps report flags it) and fix the offending entry. Most generators escape correctly; mistakes usually come from manually-written entries.

Source: sitemaps.org / Google Search Central

An empty sitemap provides no value. Add <url> entries for your pages.

Why this matters

An empty sitemap signals 'no content to index' to Google — actively harmful versus having no sitemap at all.

Learn more ▾

Google compares URLs in the sitemap against URLs it has crawled. An empty sitemap on a site with thousands of pages signals abandonment. Either populate it correctly (most CMSes auto-generate) or delete the file and let Google crawl normally.

Source: Google Search Central / sitemaps.org

Add a 'Sitemap:' directive to robots.txt so search engines can discover your sitemap.

Why this matters

robots.txt omits Sitemap: directive — crawlers must fetch /sitemap.xml by convention; reliable but missing the explicit hint.

Source: sitemaps.org

robots.txt 200 OK
Size 10240 B Sitemaps referenced 0 User-agents Blocking No — crawling allowed
<!DOCTYPE html>
<html lang="en" id="facebook" class="no_js">
<head><meta charset="utf-8" /><meta name="referrer" content="default" id="meta_referrer" /><script nonce="62U1pSOA">window._cstart=+new Date;</script><script nonce="62U1pSOA">function envFlush(e){function t(t){for(var n in e)t[n]=e[n]}window.requireLazy?window.requireLazy(["Env"],t):(window.Env=window.Env||{},t(window.Env))}envFlush({"ajaxpipe_token":"AXkGHP2I_dOrjoR0IDs","shouldLogCounters":true,"timeslice_categories":{"react_render":true,"reflow":true},"sample_continuation_stacktraces":true,"stack_trace_limit":30,"timesliceBufferSize":5000,"show_invariant_decoder":false,"compat_iframe_token":"AUdiXGVZ3trfUgheY_fdfAhcGQ0","isCQuick":false,"brsid":"7631289526278307501","promise_include_trace":false});</script><script nonce="62U1pSOA">window.openDatabase&&(window.openDatabase=function(){throw new Error});</script><script nonce="62U1pSOA">_btldr={};</script><script nonce="62U1pSOA">(function(){function e(e){return e.parentElement!==document.body&&e.parentElement!==document.head}function t(e){var t;return e.nodeName==="SCRIPT"||e.nodeName==="LINK"&&((t=n(e))==null?void 0:t.asyncCss)}function n(e){return e.dataset instanceof window.DOMStringMap?e.dataset:null}function r(r){var o;try{if(r.nodeType!==Node.ELEMENT_NODE)return}catch(e){return}if(!(e(r)||!t(r))){var a=(o=n(r))==null?void 0:o.bootloaderHash;if(a!=null&&a!==""){var i=null,l=function(){window._btldr[a]=1,i==null||i()};i=function(){r.removeEventListener("load",l),r.removeEventListener("error",l)},r.addEventListener("load",l),r.addEventListener("error",l)}}}Array.from(document.querySelectorAll('script,link[data-async-css="1"]')).forEach(function(e){return r(e)});var o=new MutationObserver(function(e,t){e.forEach(function(e){e.type==="childList"&&Array.from(e.addedNodes).forEach(function(e){r(e)})})});o.observe(document.getElementsByTagName("html")[0],{attributes:!1,childList:!0,subtree:!0})})();</script><style nonce="62U1pSOA"></style><script nonce="62U1pSOA">__DEV__=0;</script><noscript><meta http-equiv="refresh" content="0; URL=/login/?next=http%3A%2F%2Fwww.messenger.com%2Ft%2Frobots.txt&amp;_fb_noscript=1" /></noscript><title id="pageTitle">Messenger</title><meta name="bingbot" content="noarchive" /><link color="#0084ff" href="https://static.xx.fbcdn.net/rsrc.php/yf/r/PTQyJZmR6UE.svg" rel="mask-icon" /><link rel="icon" href="https://static.xx.fbcdn.net/rsrc.php/yO/r/qa11ER6rke_.ico" /><link type="text/css" rel="stylesheet" href="https://static.xx.fbcdn.net/rsrc.php/v5/yk/l/0,cross/pEVKO7CuQee.css" data-bootloader-hash="Teg4g7F" crossorigin="anonymous" />
<link type="text/css" rel="stylesheet" href="https://static.xx.fbcdn.net/rsrc.php/v5/yv/l/0,cross/yZ1noC5ssR6.css" data-bootloader-hash="5EY0zOB" crossorigin="anonymous" />
<link type="text/css" rel="stylesheet" href="https://static.xx.fbcdn.net/rsrc.php/v5/yI/l/0,cross/19ZkJl9REIW.css" data-bootloader-hash="k4k3GtN" crossorigin="anonymous" />
<script src="https://static.xx.fbcdn.net/rsrc.php/v4/y1/r/MvGdWb6L8S-.js" data-bootloader-hash="0l/T4vN" crossorigin="anonymous"></script>
<script nonce="62U1pSOA">requireLazy(["HasteSupportData"],function(m){m.handle({"clpData":{"1838142":{"r":1,"s":1},"1848815":{"r":10000,"s":1}},"gkxData":{"1174":{"result":false,"hash":null},"1221":{"result":false,"hash":null},"5163":{"result":false,"hash":null},"5415":{"result":false,"hash":null},"7742":{"result":false,"hash":null},"8068":{"result":false,"hash":null},"8869":{"result":false,"hash":null},"9063":{"result":false,"hash":null},"13382":{"result":false,"hash":null},"15745":{"result":false,"hash":null},"18719":{"result":false,"hash":null},"20935":{"result":false,"hash":null},"20936":{"result":false,"hash":null},"21043":{"result":false,"hash":null},"23984":{"result":false,"hash":null},"25572":{"result":false,"hash":null}},"justknobxData":{"2269":{"r":true},"3323":{"r":true},"3414":{"r":true},"5589":{"r":false},"1276":{"r":true},"2635":{"r":true}}})});requireLazy(["TimeSliceImpl","ServerJS"],function(TimeSlice,ServerJS){(new ServerJS()).handle({"define":[["cr:310",["RunWWW"],{"__rc":["RunWWW",null]},-1],["cr:1078",[],{"__rc":[null,null]},-1],["cr:1080",["unexpectedUseInComet"],{"__rc":["unexpectedUseInComet",null]},-1],["cr:1126",["TimeSliceImpl"],{"__rc":["TimeSliceImpl",null]},-1],["cr:3725",["clearTimeoutWWWOrMobile"],{"__rc":["clearTimeoutWWWOrMobile",null]},-1],["cr:4344",["setTimeoutWWWOrMobile"],{"__rc":["setTimeoutWWWOrMobile",null]},-1],["cr:6108",["CSS"],{"__rc":["CSS",null]},-1],["cr:6640",["PromiseImpl"],{"__rc":["PromiseImpl",null]},-1],["cr:7385",["clearIntervalWWW"],{"__rc":["clearIntervalWWW",null]},-1],["cr:7389",["setIntervalAcrossTransitionsWWW"],{"__rc":["setIntervalAcrossTransitionsWWW",null]},-1],["cr:7391",["setTimeoutAcrossTransitionsWWW"],{"__rc":["setTimeoutAcrossTransitionsWWW",null]},-1],["cr:8958",["FBJSON"],{"__rc":["FBJSON",null]},-1],["cr:8959",["DTSG"],{"__rc":["DTSG",null]},-1],["cr:8960",["DTSG_ASYNC"],{"__rc":["DTSG_ASYNC",null]},-1],["cr:696703",[],{"__rc":[null,null]},-1],["cr:135",["RunBlue"],{"__rc":["RunBlue",null]},-1],["cr:6669",["DataStore"],{"__rc":["DataStore",null]},-1],["URLFragmentPreludeConfig",[],{"hashtagRedirect":false,"fragBlacklist":["nonce","access_token","oauth_token","xs","checkpoint_data","code"]},137],["CometPersistQueryParams",[],{"relative":{},"domain":{}},6231],["CookieDomain",[],{"domain":"messenger.com"},6421],["GetAsyncParamsExtraData",[],{"extra_data":{}},7511],["AdsManagerReadRegions",[],{"excluded_endpoints":["\/am_tabular","\/ad_limits_insights","\/ads_reporting","\/column_suggestions","\/customaudiences","\/insights","\/reporting","\/edit","\/adspixels"],"excluded_preloaders":["AdsPEInsightsEdgeDataLoaderPreloader","AdsPEInsightsEdgeSummaryDataLoaderPreloader","AdsPEInsightsColumnPresetDataLoaderPreloader","AdsReportBuilderBusinessViewReportPreloader","AdsReportBuilderAdAccountViewReportPreloader","AdsReportBuilderManageUnifiedReportsPreloader"]},7950],["BootloaderConfig",[],{"deferBootloads":false,"enableLoadingUnavailableResources":true,"enableRetryOnStuckResource":false,"immediatesBugFixKillswitch":true,"jsRetries":[200,500],"jsRetryAbortNum":2,"jsRetryAbortTime":5,"silentDups":true,"timeout":60000,"tieredLoadingFromTier":100,"hypStep4":false,"btCutoffIndex":95,"fastPathForAlreadyRequired":true,"csrOn":false,"nonce":"62U1pSOA","shouldEnableProxyArgs":false,"translationRetries":[200,500],"translationRetryAbortNum":3,"translationRetryAbortTime":50},329],["CSSLoaderConfig",[],{"timeout":5000},619],["CookieCoreConfig",[],{"c_user":{"t":31536000},"cppo":{"t":86400},"dpr":{"t":604800},"hckd":{},"i_user":{"t":31536000},"locale":{"t":604800},"m_ls":{"t":34560000},"m_pixel_ratio":{"t":604800},"noscript":{},"presence":{"t":2592000},"sfau":{},"wd":{"t":604800},"x-referer":{},"x-src":{"t":1}},2104],["CurrentUserInitialData",[],{"ACCOUNT_ID":"0","USER_ID":"0","NAME":"","SHORT_NAME":null,"IS_BUSINESS_PERSON_ACCOUNT":false,"HAS_SECONDARY_BUSINESS_PERSON":false,"IS_FACEBOOK_WORK_ACCOUNT":false,"IS_INSTAGRAM_BUSINESS_PERSON":false,"IS_WABA_BUSINESS_PERSON":false,"IS_MESSENGER_ONLY_USER":false,"IS_DEACTIVATED_ALLOWED_ON_MESSENGER":false,"IS_MESSENGER_CALL_GUEST_USER":false,"IS_WORK_MESSENGER_CALL_GUEST_USER":false,"IS_WORKROOMS_USER":false,"APP_ID":"772021112871879","IS_BUSINESS_DOMAIN":false},270],["ServerNonce",[],{"ServerNonce":"Rw19UAbHTH2HR5_XqYfa0x"},141],["SiteData",[],{"server_revision":1037799039,"client_revision":1037799039,"push_phase":"C3","pkg_cohort":"BP:messengerdotcom_pkg","haste_session":"20564.BP:messengerdotcom_pkg.2.0...0","pr":1,"manifest_base_uri":"https:\/\/static.xx.fbcdn.net","manifest_origin":null,"manifest_version_prefix":null,"be_one_ahead":false,"is_rtl":false,"is_experimental_tier":false,"is_jit_warmed_up":true,"hsi":"7631289526278307501","semr_host_bucket":"3","bl_hash_version":2,"comet_env":0,"wbloks_env":false,"ef_page":null,"compose_bootloads":false,"spin":4,"__spin_r":1037799039,"__spin_b":"trunk","__spin_t":1776798052,"vip":"57.144.180.141"},317],["SprinkleConfig",[],{"param_name":"jazoest","version":2,"should_randomize":false},2111],["UserAgentData",[],{"browserArchitecture":"32","browserFullVersion":null,"browserMinorVersion":null,"browserName":"Unknown","browserVersion":null,"deviceName":"Unknown","engineName":"Unknown","engineVersion":null,"platformArchitecture":"32","platformName":"Unknown","platformVersion":null,"platformFullVersion":null},527],["PromiseUsePolyfillSetImmediateGK",[],{"www_always_use_polyfill_setimmediate":false},2190],["JSErrorLoggingConfig",[],{"appId":772021112871879,"extra":[],"reportInterval":50,"sampleWeight":1,"sampleWeightKey":"__jssesw","projectBlocklist":[]},2776],["DataStoreConfig",[],{"expandoKey":"__FB_STORE","useExpando":true},2915],["CookieCoreLoggingConfig",[],{"maximumIgnorableStallMs":16.67,"sampleRate":9.7e-5,"sampleRateClassic":1.0e-10,"sampleRateFastStale":1.0e-8},3401],["ImmediateImplementationExperiments",[],{"prefer_message_channel":true},3419],["UriNeedRawQuerySVConfig",[],{"uris":["dms.netm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sitemap.xml 200 OK
Type URL Set URLs 0 entries Valid XML No
A+
DNS Records
1 A records, 11 ms lookup
PASS
1 A records, 11 ms lookup
Info::
Resolves to 1 IPv4 address(es)
Got: 57.144.180.141
Info::
Single A record — no DNS redundancy
Multiple A records provide failover if one server goes down.
Info::
Has 1 IPv6 (AAAA) record(s)
Got: 2a03:2880:f35a:8d:face:b00c:0:2
Info::
4 nameserver(s) configured
Got: a.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com, b.ns.facebook.com
Info::
No MX records — email not configured via DNS
Info::
CAA records not checked
CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.
Info::
SPF record present in TXT
Info::
DNS resolution time: 11 ms
Got: 11 ms
A57.144.180.141
AAAA2a03:2880:f35a:8d:face:b00c:0:2
CNAME—
NSa.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com, b.ns.facebook.com
MX—
TXT
SPF v=spf1 a ~all
CAALookup not available with standard resolver
Resolved in 11 ms

Multiple A records provide failover if one server goes down.

Why this matters

Single A record means a single point of failure — if that IP goes down, your site is unreachable until DNS TTL expires.

Learn more ▾

Add multiple A records for round-robin failover, or use a managed DNS provider with health-checked failover (Route 53, Cloudflare, NS1). Short TTL (60-300s) lets clients recover faster on outages.

Source: SRE practice / DNS architecture

CAA record lookup requires a specialized DNS resolver. This check will be available in a future update.

Why this matters

Informational: CAA (Certification Authority Authorization) records weren't checked in this scan.

A
Redirect Chain
1 redirect(s), 401 ms total
PASS
1 redirect(s), 401 ms total
Info::
Single redirect
Got: https://m.me → https://www.messenger.com/ (302)
Info::
WWW normalization redirect
Info::
Uses 302 (temporary) redirect
If permanent, use 301 instead.
Got: https://m.me
Info::
Cross-domain redirect detected

https://m.me

120 ms · HTTP/1.1

302

https://www.messenger.com/

281 ms · HTTP/1.1 FINAL

#URLStatusTimeProtocolServer
1https://m.me302120 msHTTP/1.1
2https://www.messenger.com/200281 msHTTP/1.1

See the visual redirect chain in the HTTP Probe tab →

If permanent, use 301 instead.

Why this matters

302 (Found) is for genuinely temporary redirects — if this redirect is permanent, switch to 301 to preserve SEO equity.

Learn more ▾

Search engines treat 302 as temporary, keeping the original URL indexed and not transferring full link equity to the destination. Use 301 (Moved Permanently) for permanent redirects (HTTP→HTTPS, www-vs-non-www, URL restructures).

Source: Google Search Central

A+
IPv6 Readiness
IPv6 reachable (1 ms)
PASS
IPv6 reachable (1 ms)
Info::
IPv6 is configured and reachable at 2a03:2880:f35a:8d:face:b00c:0:2
Got: 1 ms connect
IPv6 Ready
AAAA Records 2a03:2880:f35a:8d:face:b00c:0:2 Connection Reachable (1 ms)
A+
URL Variants
www/non-www, trailing slash, HTTP→HTTPS
PASS
www/non-www, trailing slash, HTTP→HTTPS
Info::
www/non-www redirect configured correctly (preferred: non-www)
Info::
HTTP correctly 301-redirects to HTTPS

www / non-www

302https://www.m.me/
200https://m.me/

Preferred variant: non-www

HTTP → HTTPS

301http://m.me/ → https://m.me/

Consistent

A+
Domain Intelligence
m.me — via RegistrarSafe, LLC, 16 years, 1 months old
PASS
m.me — via RegistrarSafe, LLC, 16 years, 1 months old
Info::
Domain registered until May 20, 2034 (8 years, 2 months remaining)
Info::
Registrar: RegistrarSafe, LLC
Info::
Registrar lock is enabled
Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.
Domain expiry

2895 days

May 20, 2034

SSL certificate

8 days

Issued by DigiCert Inc

Domain age

16 years, 1 months

Registered May 20, 2010

DNSSEC

Status unknown

Protects against DNS spoofing

Hosting

Unknown

2a03:2880:f003:c07:face:b00c:0:2

Registrar

RegistrarSafe, LLC

Locked 4 NS records
Expiry timeline
Today
+1 year
Domain expiry SSL expiry Danger zone (≤30 days)
Recommended actions
  • Renew the TLS certificate or verify auto-renewal is working
Registrar RegistrarSafe, LLC
Created May 20, 2010 (16 years, 1 months ago)
Expires May 20, 2034 (8 years, 2 months)
Last Updated June 2, 2025
Name Servers b.ns.facebook.com, a.ns.facebook.com, c.ns.facebook.com, d.ns.facebook.com
Registrant Meta Platforms, Inc.
Hosting
IP Address 2a03:2880:f003:c07:face:b00c:0:2
Data source: whois (0.5s)

Domain cannot be transferred without explicit unlock from the registrar. This protects against unauthorized transfers.

Why this matters

Registrar lock (clientTransferProhibited et al.) prevents unauthorized domain transfers — strongest defense against domain hijacking.

Source: ICANN / domain-security best practice

A+
HTTP Probe Timing
Total 125 ms — DNS, TCP, TLS, TTFB, content transfer breakdown
PASS
DNS Lookup DNS Lookup — time to resolve the domain name to an IP address.
5 ms
TCP Connect TCP Connect — time to establish a TCP connection to the server.
7 ms
TLS Handshake TLS Handshake — time to complete the HTTPS encryption handshake.
10 ms
Time to First Byte Time to First Byte — how long the server takes to respond with the first byte of data.
125 ms
Total Time Total request time from DNS lookup through full response.
126 ms

Connection waterfall

DNS Lookup 5 ms TCP Connect 7 ms TLS Handshake 10 ms Server Processing 104 ms Content Transfer 0 ms
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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