EEFOCUS.COM 与非网 - EEFOCUS:中国领先的电子技术社区,为上百万电子工程师提供电子产品技术信息以及设计方案的互动交流社区平台

eefocus.com Website Information

Daily Unique Visits: 44,898

Daily Page Views: 269,388

Income Per Day: $539

Estimated Value: $388,080

This website is located in China and is using following IP address 61.155.217.66. See the complete list of popular websites hosted in China.

eefocus.com is registered under .COM top-level domain. Please check other sites in .COM zone.

Website eefocus.com is using the following name servers:

  • f1g1ns2.dnspod.net
  • f1g1ns1.dnspod.net

and is probably hosted by CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN. See the full list of other websites hosted by CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN.

The highest website eefocus.com position in Alexa rank database was 2385 and the lowest rank position was 815222. Current position of eefocus.com in Alexa rank database is 31944.

Desktop speed score of eefocus.com (42/100) is better than the results of 16.45% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of eefocus.com (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed score of eefocus.com (48/100) is better than the results of 30.32% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.

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eefocus.com Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


eefocus.com whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


Domain Name: EEFOCUS.COM
Registry Domain ID: 225153742_DOMAIN_COM-VRSN
Registrar WHOIS Server: grs-whois.hichina.com
Registrar URL: http://www.net.cn
Updated Date: 2021-03-02T08:16:27Z
Creation Date: 2005-10-07T14:53:33Z
Registry Expiry Date: 2021-10-07T14:53:33Z
Registrar: Alibaba Cloud Computing (Beijing) Co., Ltd.
Registrar IANA ID: 420
Registrar Abuse Contact Email: DomainAbuse@service.aliyun.com
Registrar Abuse Contact Phone: +86.95187
Domain Status: ok https://icann.org/epp#ok
Name Server: F1G1NS1.DNSPOD.NET
Name Server: F1G1NS2.DNSPOD.NET
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2021-04-27T07:47:30Z

eefocus.com server information

Servers Location

eefocus.com desktop page speed rank

Last tested: 2016-09-08


Desktop Speed Bad
42/100

eefocus.com Desktop Speed Test Quick Summary


priority - 134Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 1.3MiB (79% reduction).

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Compressing http://www.eeboard.com/wp-content/uploads/2015/12/Mouser_logo_102x37.jpg could save 845B (19% reduction).
Compressing http://www.eefocus.com/asset/custom/widget/img/rf.jpg could save 841B (16% reduction).
Compressing http://www.eehub.cn/img/entrance-mobile/mobile-icon.png could save 798B (77% reduction).
Compressing http://upload.semidata.info/sns.eefocus.com/tm/art…2015/09/10/cirmall.png could save 642B (12% reduction).

priority - 12Eliminate render-blocking JavaScript and CSS in above-the-fold content

Your page has 9 blocking script resources and 6 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

http://static.semidata.info/www.eefocus.com/vendor…uery.min.js?1399604599
http://www.eefocus.com/public/vendor/bootstrap/js/…trap.min.js?1473302839
http://www.eefocus.com/asset/custom/widget/js/scrollWord/scrollWord-min.js
http://gg.eefocus.com/www/delivery/spcjs.php?id=1
http://gg.eefocus.com/www/delivery/spc.php?zones=1…p%3A//www.eefocus.com/
http://gg.eefocus.com/www/delivery/fl.js
http://gg.eefocus.com/www/delivery/spcjs.php?id=1
http://gg.eefocus.com/www/delivery/spc.php?zones=1…p%3A//www.eefocus.com/
http://gg.eefocus.com/www/delivery/fl.js

Optimize CSS Delivery of the following:

http://www.eefocus.com/public/vendor/bootstrap/css…rap.min.css?1473302839
http://www.eefocus.com/public/vendor/bootstrap/fon…ome.min.css?1473302839
http://www.eefocus.com/asset/theme-eefocus/css/front.css?1473305393
http://www.eefocus.com/asset/theme-eefocus/css/toper.css?1473305393
http://www.eefocus.com/asset/theme-eefocus/css/menu.css?1473305393
http://www.eefocus.com/asset/theme-eefocus/css/footer.css?1473305393

priority - 3Leverage 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:

http://atmel.eefocus.com/images/Atmel/ams/banners/AMS_Logo_RGB.jpeg (expiration not specified)
http://www.eeboard.com/wp-content/uploads/2015/12/Mouser_logo_102x37.jpg (expiration not specified)
http://www.eefocus.com/images/logo/zd-logo.png (expiration not specified)
http://tag.perfectaudience.com/serve/5499aafcda37a38c5f0000b5.js (30 minutes)
http://pagead2.googlesyndication.com/pagead/js/lidar.js (60 minutes)
http://www.google-analytics.com/ga.js (2 hours)
http://gg.eefocus.com/www/delivery/spcjs.php?id=1 (24 hours)

priority - 2Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 18.7KiB (75% reduction).

Compressing http://www.eehub.cn/api/v1/js/navigation-modules?s…erId=0&_=1473315316377 could save 13.1KiB (76% reduction).
Compressing http://www.eehub.cn/api/v1/js/qrcode?source=eefocus could save 5.6KiB (73% reduction).

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 3.2KiB (13% reduction).

Minifying http://www.eefocus.com/ could save 3.2KiB (13% reduction) after compression.

priority - 0Minify JavaScript

Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.

Minify JavaScript for the following resources to reduce their size by 1.9KiB (25% reduction).

Minifying http://www.eehub.cn/api/v1/js/qrcode?source=eefocus could save 1.9KiB (25% reduction).

eefocus.com Desktop Resource Breakdown

Total Resources157
Number of Hosts30
Static Resources73
JavaScript Resources21
CSS Resources7

eefocus.com mobile page speed rank

Last tested: 2019-12-11


Mobile Speed Bad
48/100

eefocus.com Mobile Speed Test Quick Summary


priority - 59Avoid landing page redirects

Your page has 3 redirects. Redirects introduce additional delays before the page can be loaded.

Avoid landing page redirects for the following chain of redirected URLs.

http://eefocus.com/
http://www.eefocus.com/
https://www.eefocus.com/
https://m.eefocus.com/

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

Your page has 4 blocking script resources and 4 blocking CSS resources. This causes a delay in rendering your page.

Remove render-blocking JavaScript:

https://static.semidata.info/new.eefocus.com/vendor/jquery/jquery.min.js
https://asset.semidata.info/new.eefocus.com/theme-…el/js/bootstrap.min.js
https://asset.semidata.info/new.eefocus.com/theme-…dist/sweetalert.min.js
https://gg.eefocus.com/www/delivery/al.php?zoneid=…&closetext=%5BClose%5D

Optimize CSS Delivery of the following:

https://asset.semidata.info/new.eefocus.com/theme-…/css/bootstrap.min.css
https://asset.semidata.info/new.eefocus.com/module…obile.css?v=2018082404
https://asset.semidata.info/new.eefocus.com/theme-…el/dist/sweetalert.css
https://asset.semidata.info/new.eefocus.com/theme-…bilenew.css?v=20180824

priority - 6Reduce server response time

In our test, your server responded in 0.58 seconds.

priority - 6Leverage 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:

https://zz.bdstatic.com/linksubmit/push.js (expiration not specified)
https://www.googletagmanager.com/gtm.js?id=GTM-NNQBV37 (15 minutes)
https://tag.perfectaudience.com/serve/5499aafcda37a38c5f0000b5.js (30 minutes)
https://www.googletagservices.com/activeview/js/cu…dar.js?cache=r20110914 (50 minutes)
https://gg.eefocus.com/www/delivery/asyncjs.php (60 minutes)
https://www.googletagservices.com/dcm/dcmads.js (60 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://www.google-analytics.com/analytics.js (2 hours)

priority - 4Optimize images

Properly formatting and compressing images can save many bytes of data.

Optimize the following images to reduce their size by 41.4KiB (29% reduction).

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Compressing https://www.eefocus.com/asset/theme-eefocus/image/search-logo.png could save 444B (35% reduction).
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priority - 2Enable compression

Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.

Enable compression for the following resources to reduce their transfer size by 22.4KiB (67% reduction).

Compressing https://gg.eefocus.com/www/delivery/asyncjs.php could save 5.3KiB (63% reduction).
Compressing https://asset.semidata.info/new.eefocus.com/module…le/image/d5-logo-1.svg could save 4.9KiB (69% reduction).
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Compressing https://asset.semidata.info/new.eefocus.com/module…age/cirmall-logo-1.svg could save 3KiB (55% reduction).
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Compressing https://asset.semidata.info/new.eefocus.com/module…focus-logo-2.svg?v2019 could save 2.6KiB (80% reduction).
Compressing https://asset.semidata.info/new.eefocus.com/module…mage/moore8-logo-1.svg could save 315B (39% reduction).

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 2.7KiB (16% reduction).

Minifying https://m.eefocus.com/ could save 2.7KiB (16% reduction) after compression.

priority - 0Minify CSS

Compacting CSS code can save many bytes of data and speed up download and parse times.

Minify CSS for the following resources to reduce their size by 1.2KiB (17% reduction).

Minifying https://asset.semidata.info/new.eefocus.com/theme-…bilenew.css?v=20180824 could save 696B (18% reduction) after compression.
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eefocus.com Mobile Resource Breakdown

Total Resources119
Number of Hosts24
Static Resources84
JavaScript Resources21
CSS Resources4

eefocus.com mobile page usability

Last tested: 2019-12-11


Mobile Usability Good
99/100

eefocus.com Mobile Usability Test Quick Summary


priority - 0Size 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 <input type="submit" name="sub" class="ser-img"> is close to 1 other tap targets.

The tap target <a href="/tag/5G" class="link">5G</a> is close to 1 other tap targets.

eefocus.com HTML validation

Warnings

The “type” attribute is unnecessary for JavaScript resources.

Line: 30 Column: 1 - 121
"...t/css"> <script type="text/javascript" src="https://static.semidata.info/www.eefocus.com/vendor/jquery/jquery.min.js?1399604599"></scri..." Line: 31 Column: 1 - 116
"...</script> <script type="text/javascript" src="https://www.eefocus.com/public/vendor/bootstrap/js/bootstrap.min.js?1532531817"></scri..." Line: 33 Column: 1 - 113
"...endif]--> <script type="text/javascript" src="https://www.eefocus.com/asset/custom/widget/js/scrollWord/scrollWord-min.js"></scri..." Line: 249 Column: 1 - 31
".../section> <script type="text/javascript"> (fu..." Line: 285 Column: 5 - 35
"... <script type="text/javascript"> ..." Line: 331 Column: 1 - 31
"...-> </div> <script type="text/javascript"> (func..." Line: 2855 Column: 2 - 32
"... <p> <script type='text/javascript'><!--//..." Line: 2917 Column: 1 - 31
".../script> <script type="text/javascript"> va..." Line: 2933 Column: 1 - 31
".../script> <script type="text/javascript"> var _..." Line: 2939 Column: 1 - 31
"... code --> <script type="text/javascript"> (fu..." Line: 2965 Column: 1 - 31
"...links --> <script type="text/javascript"> windo..." Line: 2984 Column: 1 - 31
"...</script> <script type="text/javascript"> /..." Line: 2989 Column: 1 - 31
"...</script> <script type="text/javascript"> /..." Line: 2994 Column: 1 - 104
"...</script> <script type="text/javascript" src="https://www.eefocus.com/asset/theme-eefocus/js/front.js?1548827988"></scri..."

Section lacks heading. Consider using “h2”-“h6” elements to add identifying headings to all sections.

Line: 119 Column: 7 - 38
"...--> <section class="common-h-login"> ..." Line: 242 Column: 1 - 45
"...-> <section class="common-h-wx common-h-login" > <..." Line: 269 Column: 7 - 39
"...--> <section class="common-h-search"> ..." Line: 80 Column: 1 - 31
"...ndif]--> <section class="common-h-wper"> <di..."

The “type” attribute for the “style” element is not needed and should be omitted.

Line: 686 Column: 5 - 27
"...tom"> <style type="text/css"> #..." Line: 1169 Column: 5 - 27
"...und"> <style type="text/css"> #..." Line: 1619 Column: 5 - 27
"...tom"> <style type="text/css"> #..." Line: 2565 Column: 5 - 27
"...g-0"> <style type="text/css"> #..."

The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.

Line: 1299 Column: 13 - 114
"... <img border="0" alt="" src="https://gg.eefocus.com/www/delivery/avw.php?zoneid=231&amp;amp;n=9e4ae4d"> ..."

Attribute “友情链接"” is not serializable as XML 1.0.

Line: 2898 Column: 2 - 33
"...地图</a> | <a href="/corp/link.html="友情链接">友情链接</..."

Errors

An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.

Line: 122 Column: 13 - 90
"... <img src="//www.eefocus.com/asset/theme-eefocus/image/eefocus-logo-white.png"> ..." Line: 314 Column: 13 - 40
"... <img id="logoPic" src="https://www.eefocus.com/asset/theme-eefocus/image/logo.png?1548827988" class="img-responsive"> ..." Line: 767 Column: 25 - 136
"... <img src="https://upload.semidata.info/www.eefocus.com/ckeditor/images/STM32MP1.jpg" width="334" height="67"/> ..." Line: 800 Column: 25 - 120
"... <img src="https://eeb-edm.eefcdn.com/334_67-116%C2%A0%20%C2%A0.png " width="334" height="67"/> ..." Line: 1408 Column: 138 - 280
"...="_blank"><img class="img-responsive" src="https://upload.semidata.info/www.eefocus.com/widget/tmp.59dc81aa9a9a6.jpg" style="width: 120px;height: 90px;"></a></..." Line: 1416 Column: 147 - 289
"...="_blank"><img class="img-responsive" src="https://upload.semidata.info/www.eefocus.com/widget/tmp.59e6e6646d528.jpg" style="width: 120px;height: 90px;"></a></..." Line: 1424 Column: 147 - 289
"...="_blank"><img class="img-responsive" src="https://upload.semidata.info/www.eefocus.com/widget/tmp.5be3eb979b2a3.jpg" style="width: 120px;height: 90px;"></a></..." Line: 1432 Column: 147 - 289
"...="_blank"><img class="img-responsive" src="https://upload.semidata.info/www.eefocus.com/widget/tmp.5be3eba1c8c4e.jpg" style="width: 120px;height: 90px;"></a></..." Line: 1440 Column: 147 - 289
"...="_blank"><img class="img-responsive" src="https://upload.semidata.info/www.eefocus.com/widget/tmp.5c47fb303ffe9.jpg" style="width: 120px;height: 90px;"></a></..." Line: 1448 Column: 170 - 312
"...="_blank"><img class="img-responsive" src="https://upload.semidata.info/www.eefocus.com/widget/tmp.5a30d03d5e72a.jpg" style="width: 120px;height: 90px;"></a></..." Line: 1456 Column: 144 - 286
"...="_blank"><img class="img-responsive" src="https://upload.semidata.info/www.eefocus.com/widget/tmp.5c52c102616a7.jpg" style="width: 120px;height: 90px;"></a></..." Line: 1554 Column: 17 - 144
"... <img src="https://upload.semidata.info/www.eefocus.com/widget/tmp.5c765db985a13.png" class="img-responsive" style="width: 100%"> ..." Line: 2673 Column: 13 - 87
"... <img src="https://www.eefocus.com/asset/custom/widget/img/SupplyFrame.gif"> ..." Line: 2678 Column: 13 - 108
"... <img src="https://upload.semidata.info/sns.eefocus.com/tm/article/media/2015/09/10/cirmall.png"> ..." Line: 2683 Column: 13 - 83
"... <img src="https://www.eefocus.com/asset/custom/widget/img/eeboard.jpg"> ..." Line: 2688 Column: 13 - 78
"... <img src="https://www.eefocus.com/asset/custom/widget/img/d5.jpg"> ..." Line: 2693 Column: 13 - 114
"... <img src="https://upload.semidata.info/sns.eefocus.com/freescale/article/media/2015/12/07/330629.jpg"> ..." Line: 2698 Column: 13 - 98
"... <img src="https://upload.semidata.info/new.eefocus.com/channel/tmp/2012/11/stm32.jpg"> ..." Line: 2703 Column: 13 - 105
"... <img src="https://upload.semidata.info/new.eefocus.com/channel/tmp/2012/11/infineon2018.jpg"> ..." Line: 2708 Column: 13 - 78
"... <img src="https://www.eefocus.com/asset/custom/widget/img/rf.jpg"> ..." Line: 2713 Column: 13 - 105
"... <img src="https://upload.semidata.info/sns.eefocus.com/tm/article/media/2015/09/10/rohm.png"> ..." Line: 2718 Column: 13 - 104
"... <img src="https://upload.semidata.info/sns.eefocus.com/tm/article/media/2015/09/10/ams.png"> ..." Line: 2723 Column: 13 - 71
"... <img src="https://www.eefocus.com/images/logo/zd-logo.png"> ..." Line: 2728 Column: 13 - 81
"... <img src="https://www.eefocus.com/asset/custom/widget/img/eetop.gif"> ..." Line: 2733 Column: 13 - 82
"... <img src="https://www.eefocus.com/asset/custom/widget/img/cecb2b.jpg"> ..." Line: 2738 Column: 13 - 107
"... <img src="https://upload.semidata.info/sns.eefocus.com/tm/article/media/2015/09/10/276097.jpg"> ..." Line: 2743 Column: 13 - 110
"... <img src="https://upload.semidata.info/sns.eefocus.com/tm/article/media/2015/09/10/pulserain.png"> ..." Line: 2907 Column: 185 - 318
"...ht:20px;"><img src='https://upload.semidata.info/sns.eefocus.com/freescale/article/media/2016/04/12/331491.png' lazysrc="" style="float:left;"/><p sty..." Line: 2912 Column: 21 - 147
"... <img src="//analytics.supplyframe.com/trackingservlet/impression?action=pageImpression&zone=EE_home" style="display:none;" /> ..."

Attribute “gtbfieldid” not allowed on element “input” at this point.

Line: 274 Column: 13 - 259
"... <input type="text" class="common-form-control" gtbfieldid="2" autocomplete="off" name="q" value="" maxlength="100" placeholder="请输入关键词&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;搜资讯查资料&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;找开发板寻电路方案"> ..."

Element “style” not allowed as child of element “body” in this context. (Suppressing further errors from this subtree.)

Line: 295 Column: 5 - 11
"...r --> <style> .pull..."

Element “style” not allowed as child of element “div” in this context. (Suppressing further errors from this subtree.)

Line: 590 Column: 29 - 35
"...nel-body"><style> ...." Line: 686 Column: 5 - 27
"...tom"> <style type="text/css"> #..." Line: 1087 Column: 51 - 57
"...nel-body"><style> .pi-e..." Line: 1169 Column: 5 - 27
"...und"> <style type="text/css"> #..." Line: 1285 Column: 51 - 57
"...nel-body"><style> ...." Line: 1377 Column: 51 - 57
"...nel-body"><style> ...." Line: 1619 Column: 5 - 27
"...tom"> <style type="text/css"> #..." Line: 2565 Column: 5 - 27
"...g-0"> <style type="text/css"> #..." Line: 2910 Column: 1 - 7
"...v> </div> <style> .navb..."

No space between attributes.

Line: 855 Column: - 110
"...ref="/original"target="_blank"..." Line: 942 Column: - 109
"...href="/article"target="_blank"..." Line: 982 Column: - 119
"...icle/list-news"target="_blank"..." Line: 1284 Column: - 110
"...ref="/resource"target="_blank"..." Line: 1376 Column: - 107
"...a href="/topic"target="_blank"..." Line: 1468 Column: - 121
"...le/list-design"target="_blank"..." Line: 1549 Column: - 107
"...a href="/topic"target="_blank"..." Line: 1568 Column: - 109
"...href="/article"target="_blank"..." Line: 2522 Column: - 106
"...<a href="/tags"target="_blank"..." Line: 2898 Column: - 28
"...orp/link.html="友情链接">友情链接</a> ..."

Stray end tag “embed”.

Line: 2861 Column: 148 - 155
"...width="0"></embed></p> <..."

Quote “"” in attribute name. Probable cause: Matching quote missing somewhere earlier.

Line: 2898 Column: - 32
"...link.html="友情链接">友情链接</a> | <..."

Attribute “友情链接"” not allowed on element “a” at this point.

Line: 2898 Column: 2 - 33
"...地图</a> | <a href="/corp/link.html="友情链接">友情链接</..."

Attribute “lazysrc” not allowed on element “img” at this point.

Line: 2907 Column: 185 - 318
"...ht:20px;"><img src='https://upload.semidata.info/sns.eefocus.com/freescale/article/media/2016/04/12/331491.png' lazysrc="" style="float:left;"/><p sty..."

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eefocus.com 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.


eefocus.com 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.