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The highest website loc.gov position in Alexa rank database was 156 and the lowest rank position was 168. Current position of loc.gov in Alexa rank database is 164.

Desktop speed score of loc.gov (50/100) is better than the results of 23.83% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of loc.gov (98/100) is better than the results of 55.61% of other sites and means that the page is mobile-friendly.

Mobile speed score of loc.gov (45/100) is better than the results of 25.64% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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loc.gov Alexa Rank

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% DOTGOV WHOIS Server ready
Domain Name: LOC.GOV
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Security Contact Email: security@loc.gov

>>> Last update of whois database: 2021-04-24T21:24:34Z

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loc.gov desktop page speed rank

Last tested: 2017-05-23


Desktop Speed Bad
50/100

loc.gov Desktop Speed Test Quick Summary


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priority - 18Leverage browser caching

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priority - 4Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking CSS resources. This causes a delay in rendering your page.

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priority - 4Minify JavaScript

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priority - 1Minify CSS

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priority - 0Minify HTML

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loc.gov Desktop Resource Breakdown

Total Resources57
Number of Hosts4
Static Resources49
JavaScript Resources5
CSS Resources2

loc.gov mobile page speed rank

Last tested: 2017-05-23


Mobile Speed Bad
45/100

loc.gov Mobile Speed Test Quick Summary


priority - 65Optimize images

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priority - 40Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 1 blocking script resources and 1 blocking CSS resources. This causes a delay in rendering your page.

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Optimize CSS Delivery of the following:

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priority - 27Leverage browser caching

Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.

Leverage browser caching for the following cacheable resources:

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priority - 4Minify JavaScript

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Minify JavaScript for the following resources to reduce their size by 37.8KiB (17% reduction).

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priority - 1Minify CSS

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priority - 0Minify HTML

Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.

Minify HTML for the following resources to reduce their size by 4.5KiB (28% reduction).

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loc.gov Mobile Resource Breakdown

Total Resources57
Number of Hosts4
Static Resources49
JavaScript Resources5
CSS Resources2

loc.gov mobile page usability

Last tested: 2017-05-23


Mobile Usability Good
98/100

loc.gov Mobile Usability Test Quick Summary


priority - 1Size tap targets appropriately

Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.

The following tap targets are close to other nearby tap targets and may need additional spacing around them.

The tap target <label for="search" class="test screen-readers-only">Search</label> is close to 1 other tap targets.

The tap target <a id="top_searches_1" href="/search/?q=Civ…ar Photographs">Civil War Photographs</a> and 5 others are close to other tap targets.

The tap target <a href="https://www.yo…aryofcongress/">Youtube</a> and 2 others are close to other tap targets.
The tap target <a href="/accessibility/">Accessibility</a> and 7 others are close to other tap targets.

loc.gov HTML validation

Errors

Attribute “rel” not allowed on element “meta” at this point.

Line: 14 Column: 1 - 31
"...gov/" /> <meta rel="canonical" href="http://loc.gov/" /> ..."

Attribute “href” not allowed on element “meta” at this point.

Line: 14 Column: 1 - 31
"...gov/" /> <meta rel="canonical" href="http://loc.gov/" /> ..." Line: 74 Column: 1 - 100
"...media --> <meta property="og:image" href='http://www.loc.gov/static/images/apple-touch-icon.png?58338.61462'/> <meta..." Line: 79 Column: 1 - 106
"...t="187"/> <meta property="twitter:image" href='https://www.loc.gov/static/images/apple-touch-icon.png?58338.61462'/> ..."

Element “meta” is missing one or more of the following attributes: “charset”, “content”, “http-equiv”, “itemprop”, “name”, “property”.

Line: 14 Column: 1 - 31
"...gov/" /> <meta rel="canonical" href="http://loc.gov/" /> ..."

Bad value “schema.dc” for attribute “rel” on element “link”: The string “schema.dc” is not a registered keyword.

Line: 22 Column: 1 - 82
"...59BD81"/> <link title="schema(DC)" rel="schema.dc" href="http://purl.org/dc/elements/1.1/"/> <meta..."

A document must not include more than one “meta” element with its “name” attribute set to the value “description”.

Line: 43 Column: 1 - 194
"...ss " /> <meta name='description' content='The world’s largest library. View historic photos, maps, books and more. Contact experts for help with research. Plan a visit. Home of U.S. Copyright Office.'/> <meta..."

Bad value “dc.rights” for attribute “rel” on element “link”: The string “dc.rights” is not a registered keyword.

Line: 49 Column: 1 - 101
"... Work" /> <link rel="dc.rights" title="Rights Restriction" href="http://www.loc.gov/text-us-government-work" /> ..."

Element “meta” is missing required attribute “content”.

Line: 74 Column: 1 - 100
"...media --> <meta property="og:image" href='http://www.loc.gov/static/images/apple-touch-icon.png?58338.61462'/> <meta..." Line: 79 Column: 1 - 106
"...t="187"/> <meta property="twitter:image" href='https://www.loc.gov/static/images/apple-touch-icon.png?58338.61462'/> ..."

Element “script” must not have attribute “defer” unless attribute “src” is also specified.

Line: 217 Column: 1 - 22
"...</script> <script defer='defer'> var d..." Line: 1918 Column: 1 - 22
"...</footer> <script defer='defer'>//UX I..." Line: 1943 Column: 1 - 22
".../div> <script defer='defer'> var L..." Line: 1980 Column: 1 - 22
"...> <script defer='defer'> LOCSu..." Line: 2007 Column: 5 - 26
"... <script defer='defer'>jQuery..." Line: 2069 Column: 5 - 26
"...ript> <script defer='defer'>jQuery..." Line: 2108 Column: 5 - 26
"...ript> <script defer='defer'> jQue..."

The element “header” must not appear as a descendant of the “header” element.

Line: 409 Column: 1 - 37
"...<header> <header class="header" role="banner"> <div ..."

Duplicate ID “featured_content_”.

Line: 727 Column: 13 - 40
"... <div class="rsTextSlide text-left text-right" id="featured_content_"> ..." Line: 754 Column: 13 - 40
"... <div class="rsTextSlide text-left text-left" id="featured_content_"> ..." Line: 781 Column: 13 - 40
"... <div class="rsTextSlide text-left text-right" id="featured_content_"> ..." Line: 808 Column: 13 - 40
"... <div class="rsTextSlide text-left text-left" id="featured_content_"> ..."

Bad value “/search/?q=World War I” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 899 Column: - 21
"... <li><a href="/search/?q=World War I" id="top_searches_1" >World ..."

Bad value “/search/?q=Great Depression” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 907 Column: - 21
"... <li><a href="/search/?q=Great Depression" id="top_searches_3" >Great ..."

Bad value “/search/?q=Bill of Rights” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 915 Column: - 21
"... <li><a href="/search/?q=Bill of Rights" id="top_searches_5" >Bill o..."

Bad value “/search/?q=Civil War” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 919 Column: - 21
"... <li><a href="/search/?q=Civil War" id="top_searches_6" >Civil ..."

Bad value “/search/?q=Portrait Photographs” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 923 Column: - 21
"... <li><a href="/search/?q=Portrait Photographs" id="top_searches_7" >Portra..."

Bad value “/search/?q=Civil Rights” for attribute “href” on element “a”: Illegal character in query: space is not allowed.

Line: 927 Column: - 21
"... <li><a href="/search/?q=Civil Rights" id="top_searches_8" >Civil ..."

Element “img” is missing required attribute “src”.

Line: 1386 Column: 21 - 27
"... <img alt="Lincoln&#39;s second inaugural" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image13.jpg" /> ..." Line: 1404 Column: 21 - 27
"... <img alt="Abraham Lincoln on battlefield at Antietam, Maryland, cropped, highlights McLellan and Lincoln" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image14.jpg" /> ..." Line: 1422 Column: 21 - 27
"... <img alt="Abraham Lincoln to Elias H. Merryman, [September 19, 1842] (Dueling instructions)" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image15.jpg" /> ..." Line: 1440 Column: 21 - 27
"... <img alt="Abraham Lincoln" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image16.jpg" /> ..." Line: 1458 Column: 21 - 27
"... <img alt="President Abraham Lincoln, head-and-shoulders portrait, facing front" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image17.jpg" /> ..." Line: 1476 Column: 21 - 27
"... <img alt="Chicago Wide-Awake Republican Club to Abraham Lincoln, Friday, June 01, 1860 (Certificate of membership)" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image18.jpg" /> ..." Line: 1494 Column: 21 - 27
"... <img alt="Abraham Lincoln, Monday, February 11, 1861 (Farewell Address)" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image19.jpg" /> ..." Line: 1512 Column: 21 - 27
"... <img alt="Abraham Lincoln, [May-June 1861] (Message to Congress, July 4, 1861, Handwritten Draft)" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image20.jpg" /> ..." Line: 1530 Column: 21 - 27
"... <img alt="Joint Resolution Submitting 13th Amendment to the States; signed by Abraham Lincoln and Congress" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image21.jpg" /> ..." Line: 1548 Column: 21 - 27
"... <img alt="President Lincoln&#39;s funeral. [Harper&#39;s Weekly illustration.]" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image22.jpg" /> ..." Line: 1566 Column: 21 - 27
"... <img alt="$100,000 reward! The murderer of our late beloved President, Abraham Lincoln, is still at large" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image23.jpg" /> ..." Line: 1584 Column: 21 - 27
"... <img alt="President Lincoln&#39;s funeral dirge by Rose Rynder" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image24.jpg" /> ..." Line: 1602 Column: 21 - 27
"... <img alt="Abraham Lincoln and his pall bearers, April 20, 1865" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image25.jpg" /> ..." Line: 1620 Column: 21 - 27
"... <img alt="The nation is weeping" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image26.jpg" /> ..." Line: 1638 Column: 21 - 27
"... <img alt="Life mask of Abraham Lincoln" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image27.jpg" /> ..." Line: 1656 Column: 21 - 27
"... <img alt="The Chicago Times, April 24, 1865" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image28.jpg" /> ..." Line: 1674 Column: 21 - 27
"... <img alt="Abraham Lincoln&#39;s funeral march" data-src="/portals/static/home/images/public-domain/abrahamlincoln/image29.jpg" /> ..."

Stray end tag “script”.

Line: 2318 Column: 1 - 9
"...ent --> </script> ..."

Warnings

The “banner” role is unnecessary for element “header”.

Line: 409 Column: 1 - 37
"...<header> <header class="header" role="banner"> <div ..."

The “name” attribute is obsolete. Consider putting an “id” attribute on the nearest container instead.

Line: 686 Column: 5 - 51
"... "> <a name="skip-to-content" id="skip-to-content"></a> ..." Line: 1155 Column: 37 - 63
"...c-domain"><a id="reuse" name="reuse"></a> ..."

The first occurrence of ID “featured_content_” was here.

Line: 700 Column: 13 - 40
"... <div class="rsTextSlide text-left text-left" id="featured_content_"> ..." Line: 700 Column: 13 - 40
"... <div class="rsTextSlide text-left text-left" id="featured_content_"> ..." Line: 700 Column: 13 - 40
"... <div class="rsTextSlide text-left text-left" id="featured_content_"> ..." Line: 700 Column: 13 - 40
"... <div class="rsTextSlide text-left text-left" id="featured_content_"> ..."

The “heading” role is unnecessary for element “h2”.

Line: 860 Column: 13 - 70
"... <h2 tabindex="0" role="heading" id="more-programs-header">More P..."

The “contentinfo” role is unnecessary for element “footer”.

Line: 1873 Column: 1 - 42
"...v> <footer class="footer" role="contentinfo"> <div..."

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loc.gov Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.


loc.gov TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.