Justin's Linklog

For the benefit of other Technorati API users...

In a comment on this entry, Padraig Brady mentioned that his blog had mysteriously disappeared from the Irish Blogs Top 100 list.

I investigated, and found something odd -- it seems Technorati has made a change to their bloginfo API, now listing weblogs with their 'rank', but without some of the important metadata, like 'inboundblogs', 'inboundlinks', and with a 'lastupdate' time set to the epoch (1970-01-01 00:00:00 GMT), in the API. Here's an example:

<!-- generator="Technorati API version 1.0" -->
<!DOCTYPE tapi PUBLIC "-//Technorati, Inc.//DTD TAPI 0.02//EN"
                 "http://api.technorati.com/dtd/tapi-002.xml">
<tapi version="1.0">
<document>
    <result>
        <url>http://www.pixelbeat.org</url>
                    <weblog>
                <name>Pádraig Brady</name>
                <url>http://www.pixelbeat.org</url>
                <rssurl></rssurl>
                <atomurl></atomurl>
                <inboundblogs></inboundblogs>
                <inboundlinks></inboundlinks>
                <lastupdate>1970-01-01 00:00:00 GMT</lastupdate>
                <rank>74830</rank>
            </weblog>
                            </result>
</document>
</tapi>

Compare that with this lookup result, on my own blog:

<?xml version="1.0" encoding="utf-8"?>
<!-- generator="Technorati API version 1.0" -->
<!DOCTYPE tapi PUBLIC "-//Technorati, Inc.//DTD TAPI 0.02//EN"
                 "http://api.technorati.com/dtd/tapi-002.xml">
<tapi version="1.0">
<document>
    <result>
        <url>http://taint.org</url>
                    <weblog>
                <name>taint.org: Justin Mason’s Weblog</name>
                <url>http://taint.org</url>
                <rssurl>http://taint.org/feed</rssurl>
                <atomurl>http://taint.org/feed/atom</atomurl>
                <inboundblogs>143</inboundblogs>
                <inboundlinks>227</inboundlinks>
                <lastupdate>2008-02-12 11:48:10 GMT</lastupdate>
                <rank>43404</rank>
            </weblog>
                            <inboundblogs>143</inboundblogs>
                            <inboundlinks>227</inboundlinks>
            </result>
</document>
</tapi>

This bug had caused a number of blogs to be dropped from the list, since I was using "inboundblogs and inboundlinks == 0" as an indication that a blog was not registered with Technorati.

It's now worked around in my code, although a side-effect is that blogs which have this set will appear with question-marks in the 'inboundblogs' and 'inboundlinks' columns, and will perform poorly in the 'ranked by inbound link count' table (unsurprisingly).

I've posted a query to the support forum -- let's see what the story is.

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