200 Top SEO Ranking Factors March 2021

TOP SEO Factors for 2021-3 previous - today - next

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Distinct Entities Used Diversity	-0.29	61	29	89 %	58 %
2	Variations in HTML Tags Relevancy	-0.24	908	162	88 %	94 %
3	LSI Words in Sentences Relevancy	-0.24	3198	601	86 %	90 %
4	Search Result Has Publish Date	-0.23	1	1	74 %	20 %
5	Number of Factors Used Diversity	-0.23	205	141	95 %	90 %
6	Entities in Title Tag Relevancy	-0.22	7	3	78 %	54 %
7	Term Frequency Relevancy	-0.22	8	6	88 %	92 %
8	Variations in P Tags Relevancy	-0.22	169	35	81 %	92 %
9	Variations in Body Tags Relevancy	-0.22	778	138	80 %	93 %
10	Variations in Div Tags Relevancy	-0.22	616	118	87 %	92 %
11	Variations in A Tags Relevancy	-0.21	193	27	80 %	92 %
12	Variations in H1-H6 Tags Relevancy	-0.21	51	9	82 %	91 %
13	Entities in H2 Tags	-0.21	22	5	54 %	57 %
14	Variations in H1, H2, and H3 Tags Relevancy	-0.21	43	7	81 %	92 %
15	Variations in Sentences Relevancy	-0.2	106	21	78 %	92 %
16	LSI Words in Title Tag Relevancy	-0.2	28	6	84 %	84 %
17	Variations in A Tag HREF Attributes Relevancy	-0.2	390	47	77 %	92 %
18	Variations in H1 and H2 Tags Relevancy	-0.19	15	5	79 %	91 %
19	Variations in LI Tags Relevancy	-0.19	92	19	73 %	90 %
20	Unabridged Word Count Size	-0.19	6803	1832	93 %	88 %
21	Variations in Search Result Display URL Relevancy	-0.19	5	2	88 %	77 %
22	Variations in Search Result Link Text Relevancy	-0.19	5	2	87 %	78 %
23	Clean Text Kilobytes Size	-0.19	37	11	91 %	88 %
24	Entities in H3 Tags	-0.19	29	5	44 %	57 %
25	Variations in H2 Tags Relevancy	-0.19	11	3	52 %	91 %
26	Word Count Size	-0.18	4962	1420	94 %	88 %
27	Entities in Meta Description Tag Relevancy	-0.18	9	3	60 %	55 %
28	LSI Words in H2 Tags Relevancy	-0.18	88	17	65 %	87 %
29	Exact Matches in the HTML Tag Relevancy	-0.18	179	12	42 %	92 %
30	Variations in Script Tags Relevancy	-0.18	233	31	67 %	92 %
31	Leading Variations in H1-H6 Tags Relevancy	-0.18	23	2	55 %	88 %
32	Number of Sentences Size	-0.18	179	47	91 %	85 %
33	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.18	17	2	52 %	88 %
34	Exact Matches in Body Tag Relevancy	-0.18	190	15	40 %	92 %
35	LSI Words in Meta Description Tag Relevancy	-0.17	48	11	66 %	85 %
36	Keywords in pages top 10 most used phrases	-0.17	5	2	74 %	85 %
37	Variations in the Title Tag Relevancy	-0.17	6	2	83 %	75 %
38	Variations in Absolute URLs Relevancy	-0.17	328	47	71 %	89 %
39	Variations in ALT Attributes Relevancy	-0.17	79	9	56 %	87 %
40	Body Tag Size Kilobytes Size	-0.17	173	74	81 %	89 %
41	Number of HTML Tags Size	-0.17	2358	814	95 %	86 %
42	Page Size Kilobytes Size	-0.17	265	131	94 %	87 %
43	Entities in Sentences Relevancy	-0.17	423	82	57 %	91 %
44	Ahrefs Rank Authority	-0.17	41	12	58 %	27 %
45	Number of P Tags Size	-0.17	204	40	89 %	88 %
46	Keywords in pages top 5 most used phrases	-0.17	3	2	64 %	85 %
47	Variations in Span Tags Relevancy	-0.17	60	11	60 %	86 %
48	Clean Keyword Density in the HTML Tag Relevancy	-0.17	9	5	90 %	26 %
49	Number of Questions Size	-0.16	63	6	66 %	83 %
50	Ahrefs Referring Class C Addresses Authority	-0.16	621	23	41 %	34 %
51	Variations in Meta Description Relevancy	-0.16	7	2	63 %	87 %
52	Ahrefs Referring IP Addresses Authority	-0.16	1481	30	41 %	34 %
53	Number of HTTPS Links Authority	-0.16	514	137	90 %	86 %
54	Search Result Publish Date	-0.16	2003186098	1776299622	87 %	47 %
55	Number of Questions In Headings Size	-0.16	6	2	37 %	67 %
56	Variations in Search Result URL Relevancy	-0.16	4	2	70 %	80 %
57	Ahrefs Referring Domains Authority	-0.16	1989	33	41 %	34 %
58	Entities in H4 Tags	-0.16	13	3	25 %	55 %
59	Number of Images with ALT Text Size	-0.16	70	18	83 %	82 %
60	Variations in H3 Tags Relevancy	-0.16	29	3	39 %	90 %
61	Ahrefs Backlinks Authority	-0.16	1203253	6326	41 %	34 %
62	Exact Matches in H1-H6 Tags Relevancy	-0.16	11	2	33 %	87 %
63	Number of Links Authority	-0.16	515	145	92 %	82 %
64	Variations in Nav Tags Relevancy	-0.16	232	18	49 %	88 %
65	Variations in First 100 Words Relevancy	-0.16	25	8	71 %	78 %
66	Variations in the Canonical URL Relevancy	-0.16	4	2	57 %	81 %
67	Ahrefs Referring Pages Authority	-0.16	1203250	6270	41 %	34 %
68	LSI Words in H3 Tags Relevancy	-0.16	203	18	58 %	85 %
69	Ahrefs Text Backlinks Authority	-0.16	1203222	6306	40 %	34 %
70	Number of Internal Links Authority	-0.16	492	129	91 %	83 %
71	Ahrefs NoFollow Backlinks Authority	-0.15	9964	121	36 %	34 %
72	Number of DoFollow Links Authority	-0.15	504	139	91 %	83 %
73	Variations in Search Result URL Path Relevancy	-0.15	4	2	70 %	75 %
74	LSI Words in H1 Tags Relevancy	-0.15	22	6	74 %	77 %
75	Entities in the HTML Tag Relevancy	-0.15	1694	291	58 %	91 %
76	Entities in H1 Tags	-0.15	7	2	64 %	51 %
77	Number of Heading Tags Size	-0.15	80	21	91 %	87 %
78	Keywords in pages top 3 most used phrases	-0.15	2	1	55 %	85 %
79	Number of H2 Tags Size	-0.15	13	6	75 %	85 %
80	Number of Images Size	-0.15	89	28	89 %	82 %
81	Variations in H1 Tags Relevancy	-0.15	5	2	70 %	76 %
82	Number of Absolute URLs Authority	-0.15	394	142	92 %	83 %
83	TF/IDF Relevancy	-0.15	1	1	72 %	78 %
84	Leading Variations in H1 Tags Relevancy	-0.14	2	1	35 %	79 %
85	Variations in Main Tags Relevancy	-0.14	332	45	32 %	86 %
86	Leading Variations in H2 Tags Relevancy	-0.14	6	1	24 %	84 %
87	Number of Questions In H2 Tags Size	-0.14	3	1	22 %	81 %
88	Has Entities in H2 Tags Relevancy	-0.14	1	1	55 %	53 %
89	Variations in Search Result Document File Name Relevancy	-0.14	4	2	68 %	71 %
90	Ahrefs Domain Rating Authority	-0.14	75	34	60 %	30 %
91	Variations in Strong Tags Relevancy	-0.14	23	3	37 %	81 %
92	Number of H3 Tags Size	-0.14	64	8	69 %	86 %
93	Variations making whole A Tags Relevancy	-0.14	6	2	34 %	84 %
94	Number of External Links Authority	-0.14	55	18	86 %	80 %
95	Variations in OpenGraph Title Relevancy	-0.14	4	2	61 %	75 %
96	Exact Matches in Sentences Relevancy	-0.14	36	2	27 %	89 %
97	Variations in TITLE Attributes Relevancy	-0.14	100	8	40 %	84 %
98	Variations in Section Tags Relevancy	-0.14	73	18	39 %	85 %
99	Inline JavaScript Kilobytes Size	-0.14	101	26	89 %	83 %
100	Variations in the last 100 words Relevancy	-0.14	13	4	60 %	78 %
101	Exact Matches in A Tags Relevancy	-0.14	40	3	26 %	88 %
102	Leading Variations in Title Tag Relevancy	-0.14	1	1	39 %	77 %
103	Variations in OpenGraph Description Relevancy	-0.14	9	2	53 %	80 %
104	DomDetailer Majestic Referring Subnets Authority	-0.14	44794	6585	55 %	28 %
105	DomDetailer Majestic IPs Authority	-0.13	215446	24426	55 %	28 %
106	DomDetailer Moz PA Authority	-0.13	62	26	55 %	26 %
107	Headings Has Question Other	-0.13	1	1	36 %	76 %
108	DomDetailer Majestic CF Authority	-0.13	54	22	54 %	27 %
109	Variations in Footer Tags Relevancy	-0.13	30	6	38 %	85 %
110	Meta Description Tag Has Entities Relevancy	-0.13	1	1	61 %	51 %
111	Variations in I Tags Relevancy	-0.13	19	2	23 %	82 %
112	DomDetailer Majestic Referring Domains Authority	-0.13	1520982	153047	56 %	28 %
113	Exact Matches in H2 Tags Relevancy	-0.13	4	1	16 %	87 %
114	Head Size Kilobytes Size	-0.13	119	34	86 %	82 %
115	Variations Making Whole LI Tags Relevancy	-0.13	5	1	27 %	80 %
116	Variations in H4 Tags Relevancy	-0.13	7	1	18 %	81 %
117	DomDetailer Majestic Links Authority	-0.13	100863522	7821911	55 %	27 %
118	Ahrefs Dofollow Backlinks Authority	-0.13	1193259	6252	31 %	33 %
119	Variations in Article Tags Relevancy	-0.13	135	20	33 %	80 %
120	Number of Questions In H3 Tags Size	-0.13	4	1	15 %	78 %
121	Number of DoFollow External Links Authority	-0.13	52	15	84 %	78 %
122	Title Tag Has Entities Relevancy	-0.13	1	1	78 %	46 %
123	DomDetailer Moz DA Authority	-0.13	70	25	54 %	26 %
124	Search Result Uses HTTPS Other	-0.13	1	1	88 %	72 %
125	Number of Nofollow Links Authority	-0.13	33	6	36 %	81 %
126	Variations Making Whole Span Tags Relevancy	-0.13	6	1	20 %	82 %
127	LSI Words in H4 Tags Relevancy	-0.13	75	8	37 %	80 %
128	Inline CSS Kilobytes Size	-0.13	101	22	57 %	82 %
129	Number of US Phone Numbers Trust	-0.13	181	7	40 %	74 %
130	Variations in H4-H6 Tags Relevancy	-0.13	12	2	23 %	81 %
131	DomDetailer Moz Rank Authority	-0.12	7	3	53 %	26 %
132	Leading Variations in H3 Tags Relevancy	-0.12	12	1	17 %	81 %
133	Ahrefs Has Text Backlinks Authority	-0.12	1	1	41 %	33 %
134	Variations in ID Attributes Relevancy	-0.12	8	1	13 %	85 %
135	Variations making whole H1-H6 Tags Relevancy	-0.12	3	1	17 %	77 %
136	Ahrefs Has Backlinks Authority	-0.12	1	1	41 %	33 %
137	DomDetailer Moz Links Authority	-0.12	66881173	8132911	56 %	28 %
138	Has Entities in H1 Tags Relevancy	-0.12	1	1	65 %	49 %
139	Word Count in Meta Description Size	-0.12	57	22	70 %	79 %
140	Has Entities in H3 Tags Relevancy	-0.12	1	1	46 %	51 %
141	Variations in Class Attributes Relevancy	-0.12	116	5	28 %	82 %
142	Ahrefs Has NoFollow Backlinks Authority	-0.12	1	1	36 %	34 %
143	Meta Description Length Size	-0.12	346	131	70 %	78 %
144	Number of NoFollow External Links Authority	-0.12	17	3	24 %	79 %
145	Exact Matches in Title Tag Relevancy	-0.12	2	1	30 %	82 %
146	Has JSON-LD Answer	-0.12	1	1	4 %	56 %
147	Number of Social Accounts Authority	-0.12	4	2	53 %	78 %
148	Has JSON-LD Question	-0.12	1	1	4 %	56 %
149	Load Time Milliseconds Performance	-0.12	31908	2658	94 %	68 %
150	Has Privacy Policy Trust	-0.12	1	1	58 %	74 %
151	Search Result Link Text Length Size	-0.12	124	55	95 %	67 %
152	Number of Twitter Accounts Authority	-0.12	4	1	46 %	75 %
153	Has Meta Description Relevancy	-0.12	1	1	71 %	74 %
154	DomDetailer Facebook Shares Authority	-0.12	5846407	-790607	51 %	27 %
155	Flesch Kincaid Reading Grade Level Other	-0.12	8	3	86 %	53 %
156	Ahrefs Has Dofollow Backlinks Authority	-0.12	1	1	30 %	32 %
157	Variations making whole H1, H2, and H3 Tags Relevancy	-0.12	2	1	16 %	77 %
158	Exact Matches in H1 Tags Relevancy	-0.12	2	1	23 %	78 %
159	Has Canonical URL Authority	-0.11	1	1	77 %	75 %
160	Variations in Search Result Summary Relevancy	-0.11	5	3	83 %	71 %
161	Number of H4 Tags Size	-0.11	17	4	46 %	76 %
162	Percentage of NoFollow Links Authority	-0.11	18	4	34 %	76 %
163	Keywords in pages most used phrase	-0.11	1	1	29 %	79 %
164	Number of Social Pages Authority	-0.11	7	2	56 %	70 %
165	Has Entities in H4 Tags Relevancy	-0.11	1	1	27 %	49 %
166	Percentage of NoFollow External Links Authority	-0.11	14	2	22 %	76 %
167	Leading Variations in H4-H6 Tags Relevancy	-0.11	6	1	11 %	76 %
168	Variations making whole H1 Tags Relevancy	-0.11	1	1	10 %	75 %
169	DomDetailer Majestic TF Authority	-0.11	48	17	50 %	26 %
170	Ahrefs Linked Root Domains Authority	-0.11	35	5	43 %	31 %
171	Number of HREF Lang Tags Size	-0.11	10	2	10 %	77 %
172	Percentage of NoFollow Internal Links Authority	-0.11	10	3	23 %	74 %
173	Exact Matches in Meta Description Relevancy	-0.11	2	1	19 %	85 %
174	Ahrefs Internal Links Authority	-0.11	467	59	44 %	32 %
175	Number of Facebook Accounts Authority	-0.11	3	1	34 %	73 %
176	Number of Forms Technology	-0.11	19	3	70 %	71 %
177	Has FavIcon Technology	-0.11	1	1	78 %	70 %
178	Ahrefs Word Count Size	-0.11	3931	798	37 %	27 %
179	Has JSON-LD Person	-0.11	1	1	21 %	64 %
180	Has OpenGraph Image Relevancy	-0.11	1	1	56 %	68 %
181	Title Word Count Size	-0.11	19	9	92 %	62 %
182	Has JSON-LD Organization	-0.11	1	1	32 %	69 %
183	Variations in Figure Tags Relevancy	-0.11	68	7	14 %	80 %
184	Variations Making Whole Strong Tags Relevancy	-0.11	3	1	8 %	76 %
185	Has OpenGraph Type Relevancy	-0.1	1	1	63 %	65 %
186	Has Copyright Trust	-0.1	1	1	73 %	66 %
187	Title Length Size	-0.1	86	58	91 %	60 %
188	Number of LinkedIn Pages Authority	-0.1	2	1	28 %	73 %
189	Variations in Search Result URL Domain Name Relevancy	-0.1	2	1	4 %	47 %
190	Has Meta Robots Other	-0.1	1	1	38 %	67 %
191	Variations in Em Tags Relevancy	-0.1	13	1	12 %	78 %
192	Number of Instagram Pages Authority	-0.1	5	1	35 %	69 %
193	Variations in Meta Twitter Content Relevancy	-0.1	2	1	24 %	69 %
194	Variations in Meta Twitter Description Relevancy	-0.1	5	1	22 %	72 %
195	Percentage of DoFollow External Links Authority	-0.1	33	14	82 %	61 %
196	Leading Variations in Meta Description Relevancy	-0.1	1	1	13 %	71 %
197	Number of Images without ALT Text Size	-0.1	37	10	67 %	74 %
198	Has JSON-LD ImageObject	-0.1	1	1	35 %	68 %
199	Leading Variations in H4 Tags Relevancy	-0.1	5	1	8 %	76 %
200	Number of Videos Technology	-0.1	3	1	12 %	70 %

Measures 149774 SEO Factors

148052 Built-In SEO Factors

138875 On-page SEO Factors

9177 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2021-3 previous - today - next